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root/cvsroot/UserCode/Jeng/PVStudy/plugins/PVStudy.cc
Revision: 1.13
Committed: Fri Dec 4 08:37:40 2009 UTC (15 years, 5 months ago) by jengbou
Content type: text/plain
Branch: MAIN
Changes since 1.12: +169 -239 lines
Log Message:
update

File Contents

# User Rev Content
1 jengbou 1.1 // -*- C++ -*-
2     //
3     // Package: PVStudy
4     // Class: PVStudy
5     //
6     /**\class PVStudy PVStudy.cc UserCode/PVStudy/plugins/PVStudy.cc
7    
8     Description: <one line class summary>
9    
10     Implementation:
11     <Notes on implementation>
12     */
13     //
14     // Original Author: "Geng-yuan Jeng/UC Riverside"
15 jengbou 1.13 // "Yanyan Gao/Fermilab ygao@fnal.gov"
16 jengbou 1.1 // Created: Thu Aug 20 11:55:40 CDT 2009
17 jengbou 1.13 // $Id: PVStudy.cc,v 1.12 2009/11/27 12:31:05 yygao Exp $
18 jengbou 1.1 //
19     //
20    
21    
22     // system include files
23     #include <memory>
24     #include <string>
25     #include <vector>
26     #include <iostream>
27     #include <sstream>
28 yygao 1.9 #include <algorithm>
29 jengbou 1.1
30     // user include files
31     #include "FWCore/Framework/interface/Frameworkfwd.h"
32     #include "FWCore/Framework/interface/EDAnalyzer.h"
33    
34     #include "FWCore/Framework/interface/Event.h"
35     #include "FWCore/Framework/interface/MakerMacros.h"
36    
37     #include "FWCore/ParameterSet/interface/ParameterSet.h"
38     #include "FWCore/Utilities/interface/InputTag.h"
39     #include "DataFormats/TrackReco/interface/Track.h"
40     #include "DataFormats/TrackReco/interface/TrackFwd.h"
41     #include "FWCore/ServiceRegistry/interface/Service.h"
42     #include "PhysicsTools/UtilAlgos/interface/TFileService.h"
43     #include "UserCode/PVStudy/interface/PVStudy.h"
44     //
45     #include "DataFormats/VertexReco/interface/Vertex.h"
46     #include "RecoVertex/VertexPrimitives/interface/TransientVertex.h"
47    
48     // simulated vertices,..., add <use name=SimDataFormats/Vertex> and <../Track>
49     #include <SimDataFormats/Vertex/interface/SimVertex.h>
50     #include <SimDataFormats/Vertex/interface/SimVertexContainer.h>
51     #include <SimDataFormats/Track/interface/SimTrack.h>
52     #include <SimDataFormats/Track/interface/SimTrackContainer.h>
53    
54     //root
55 jengbou 1.4 #include <TROOT.h>
56     #include <TF1.h>
57     #include <TString.h>
58     #include <TStyle.h>
59     #include <TPaveStats.h>
60     #include <TPad.h>
61 jengbou 1.1
62     using namespace std;
63    
64 yygao 1.7 PVStudy::PVStudy(const edm::ParameterSet& iConfig)
65 jengbou 1.1 {
66 yygao 1.7 //=======================================================================
67     // Get configuration for TrackTupleMaker
68     //=======================================================================
69 jengbou 1.13 simG4_ = iConfig.getParameter<edm::InputTag>( "simG4" );
70     trackCollectionTag_ = iConfig.getUntrackedParameter<edm::InputTag>("trackCollection");
71     splitTrackCollection1Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitTrackCollection1");
72     splitTrackCollection2Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitTrackCollection2");
73 yygao 1.7 vertexCollectionTag_ = iConfig.getUntrackedParameter<edm::InputTag>("vertexCollection");
74 jengbou 1.13 splitVertexCollection1Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitVertexCollection1");
75     splitVertexCollection2Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitVertexCollection2");
76     pixelVertexCollectionTag_ = iConfig.getParameter<edm::InputTag>("pixelVertexCollectionTag");
77     verbose_ = iConfig.getUntrackedParameter<bool>("verbose",false);
78     realData_ = iConfig.getUntrackedParameter<bool>("realData",false);
79     analyze_ = iConfig.getUntrackedParameter<bool>("analyzeOnTheFly",false);
80     saventuple_ = iConfig.getUntrackedParameter<bool>("saventuple",false);
81     outputfilename_ = iConfig.getUntrackedParameter<string>("OutputFileName");
82     ntrkdiffcut_ = iConfig.getUntrackedParameter<double>("ntrkdiffcut");
83     zsigncut_ = iConfig.getUntrackedParameter<int>("zsigncut");
84     nTrkMin_ = iConfig.getUntrackedParameter<int>("nTrkMin");
85     nTrkMax_ = iConfig.getUntrackedParameter<int>("nTrkMax");
86     histoFileName_ = iConfig.getUntrackedParameter<std::string> ("histoFileName");
87 jengbou 1.1
88     //now do what ever initialization is needed
89 jengbou 1.3 pvinfo.clear();
90 jengbou 1.1
91 yygao 1.9
92 yygao 1.7 // Specify the data mode vector
93     if(realData_) datamode.push_back(0);
94     else {
95     datamode.push_back(0);
96     datamode.push_back(1);
97     datamode.push_back(2);
98     datamode.push_back(3);
99     }
100    
101     // Create ntuple files if needed
102     if(saventuple_) {
103     file_ = TFile::Open(outputfilename_.c_str(),"RECREATE");
104     ftree_ = new TTree("mytree","mytree");
105     ftree_->AutoSave();
106     ftree_->Branch("residual",&fres_,"fres_[3]/D");
107     ftree_->Branch("error",&ferror_,"ferror_[3]/D");
108     ftree_->Branch("nTrkPV",&fntrk_,"fntrk_/I");
109 yygao 1.9
110     // pvtxtree_ analyzing the pvtxs ootb
111     pvtxtree_ = new TTree("pvtxtree","pvtxtree");
112     //pvtx using all tracks
113     pvtxtree_->Branch("nrecPV",&nrecPV_,"nrecPV/I");
114     pvtxtree_->Branch("nTrkPV",&nTrkPV_,"nTrkPV[nrecPV]/I");
115 yygao 1.10 pvtxtree_->Branch("sumptsq",&sumptsq_,"sumptsq[nrecPV]/D");
116     pvtxtree_->Branch("isValid",&isValid_,"isValid/I");
117     pvtxtree_->Branch("isFake",&isFake_,"isFake/I");
118 yygao 1.9 pvtxtree_->Branch("recx",&recx_,"recx[nrecPV]/D");
119     pvtxtree_->Branch("recy",&recy_,"recy[nrecPV]/D");
120     pvtxtree_->Branch("recz",&recz_,"recz[nrecPV]/D");
121     pvtxtree_->Branch("recx_err",&recx_err_,"recx_err[nrecPV]/D");
122     pvtxtree_->Branch("recy_err",&recy_err_,"recy_err[nrecPV]/D");
123     pvtxtree_->Branch("recz_err",&recz_err_,"recz_err[nrecPV]/D");
124 yygao 1.11
125 yygao 1.10 pvtxtree_->Branch("min_zsep",&min_zsep_,"min_zsep/D");
126     pvtxtree_->Branch("min_ntrksep",&min_ntrksep_,"min_ntrksep/D");
127     pvtxtree_->Branch("min_sumpt2sep",&min_sumpt2sep_,"min_sumpt2sep/D");
128    
129 yygao 1.9 //pvtx using splittracks1
130     pvtxtree_->Branch("nrecPV1_spl",&nrecPV1_spl_,"nrecPV1_spl/I");
131 yygao 1.10 pvtxtree_->Branch("nTrkPV1_spl",&nTrkPV1_spl_,"nTrkPV1_spl[nrecPV1_spl]/I");
132     pvtxtree_->Branch("sumptsq1_spl",&sumptsq1_spl_,"sumptsq1_spl[nrecPV1_spl]/D");
133     pvtxtree_->Branch("isValid1_spl",&isValid1_spl_,"isValid1_spl/I");
134     pvtxtree_->Branch("isFake1_spl",&isFake1_spl_,"isFake1_spl/I");
135 yygao 1.9 pvtxtree_->Branch("recx1_spl",&recx1_spl_,"recx1_spl[nrecPV1_spl]/D");
136     pvtxtree_->Branch("recy1_spl",&recy1_spl_,"recy1_spl[nrecPV1_spl]/D");
137     pvtxtree_->Branch("recz1_spl",&recz1_spl_,"recz1_spl[nrecPV1_spl]/D");
138     pvtxtree_->Branch("recx1_err_spl",&recx1_err_spl_,"recx1_err_spl[nrecPV1_spl]/D");
139     pvtxtree_->Branch("recy1_err_spl",&recy1_err_spl_,"recy1_err_spl[nrecPV1_spl]/D");
140 yygao 1.10 pvtxtree_->Branch("recz1_err_spl",&recz1_err_spl_,"recz1_err_spl[nrecPV1_spl]/D");
141    
142 yygao 1.9 //pvtx using splittracks2
143     pvtxtree_->Branch("nrecPV2_spl",&nrecPV2_spl_,"nrecPV2_spl/I");
144 yygao 1.10 pvtxtree_->Branch("nTrkPV2_spl",&nTrkPV2_spl_,"nTrkPV2_spl[nrecPV2_spl]/I");
145     pvtxtree_->Branch("sumptsq2_spl",&sumptsq2_spl_,"sumptsq2_spl[nrecPV2_spl]/D");
146     pvtxtree_->Branch("isValid2_spl",&isValid2_spl_,"isValid2_spl/I");
147     pvtxtree_->Branch("isFake2_spl",&isFake2_spl_,"isFake2_spl/I");
148 yygao 1.9 pvtxtree_->Branch("recx2_spl",&recx2_spl_,"recx2_spl[nrecPV2_spl]/D");
149     pvtxtree_->Branch("recy2_spl",&recy2_spl_,"recy2_spl[nrecPV2_spl]/D");
150     pvtxtree_->Branch("recz2_spl",&recz2_spl_,"recz2_spl[nrecPV2_spl]/D");
151     pvtxtree_->Branch("recx2_err_spl",&recx2_err_spl_,"recx2_err_spl[nrecPV2_spl]/D");
152     pvtxtree_->Branch("recy2_err_spl",&recy2_err_spl_,"recy2_err_spl[nrecPV2_spl]/D");
153 yygao 1.10 pvtxtree_->Branch("recz2_err_spl",&recz2_err_spl_,"recz2_err_spl[nrecPV2_spl]/D");
154 yygao 1.11
155     //pixeVertices
156     pvtxtree_->Branch("nrecPV_pxlpvtx",&nrecPV_pxlpvtx_,"nrecPV_pxlpvtx/I");
157     pvtxtree_->Branch("nTrkPV_pxlpvtx",&nTrkPV_pxlpvtx_,"nTrkPV_pxlpvtx[nrecPV_pxlpvtx]/I");
158     pvtxtree_->Branch("sumptsq_pxlpvtx",&sumptsq_pxlpvtx_,"sumptsq_pxlpvtx[nrecPV_pxlpvtx]/D");
159     pvtxtree_->Branch("isValid_pxlpvtx",&isValid_pxlpvtx_,"isValid_pxlpvtx/I");
160     pvtxtree_->Branch("isFake_pxlpvtx",&isFake_pxlpvtx_,"isFake_pxlpvtx/I");
161     pvtxtree_->Branch("recx_pxlpvtx",&recx_pxlpvtx_,"recx_pxlpvtx[nrecPV_pxlpvtx]/D");
162     pvtxtree_->Branch("recy_pxlpvtx",&recy_pxlpvtx_,"recy_pxlpvtx[nrecPV_pxlpvtx]/D");
163     pvtxtree_->Branch("recz_pxlpvtx",&recz_pxlpvtx_,"recz_pxlpvtx[nrecPV_pxlpvtx]/D");
164     pvtxtree_->Branch("recx_err_pxlpvtx",&recx_err_pxlpvtx_,"recx_err_pxlpvtx[nrecPV_pxlpvtx]/D");
165     pvtxtree_->Branch("recy_err_pxlpvtx",&recy_err_pxlpvtx_,"recy_err_pxlpvtx[nrecPV_pxlpvtx]/D");
166     pvtxtree_->Branch("recz_err_pxlpvtx",&recz_err_pxlpvtx_,"recz_err_pxlpvtx[nrecPV_pxlpvtx]/D");
167    
168 yygao 1.9 //Fill the variables in the twovtx pair (recvtx1, recvtx2)
169     pvtxtree_->Branch("nrecPV_twovtx",&nrecPV_twovtx_,"nrecPV_twovtx/I");
170     pvtxtree_->Branch("nTrkPV1_spl_twovtx",&nTrkPV1_spl_twovtx_,"nTrkPV1_spl_twovtx[nrecPV_twovtx]/I");
171     pvtxtree_->Branch("nTrkPV2_spl_twovtx",&nTrkPV2_spl_twovtx_,"nTrkPV2_spl_twovtx[nrecPV_twovtx]/I");
172     pvtxtree_->Branch("sumptsq1_spl_twovtx",&sumptsq1_spl_twovtx_,"sumptsq1_spl_twovtx[nrecPV_twovtx]/D");
173     pvtxtree_->Branch("sumptsq2_spl_twovtx",&sumptsq2_spl_twovtx_,"sumptsq2_spl_twovtx[nrecPV_twovtx]/D");
174     pvtxtree_->Branch("nTrkPV_twovtx",&nTrkPV_twovtx_,"nTrkPV_twovtx[nrecPV_twovtx]/I");
175     pvtxtree_->Branch("deltax_twovtx",&deltax_twovtx_,"deltax_twovtx[nrecPV_twovtx]/D");
176     pvtxtree_->Branch("deltay_twovtx",&deltay_twovtx_,"deltay_twovtx[nrecPV_twovtx]/D");
177     pvtxtree_->Branch("deltaz_twovtx",&deltaz_twovtx_,"deltaz_twovtx[nrecPV_twovtx]/D");
178     pvtxtree_->Branch("errx_twovtx",&errx_twovtx_,"errx_twovtx[nrecPV_twovtx]/D");
179     pvtxtree_->Branch("erry_twovtx",&erry_twovtx_,"erry_twovtx[nrecPV_twovtx]/D");
180     pvtxtree_->Branch("errz_twovtx",&errz_twovtx_,"errz_twovtx[nrecPV_twovtx]/D");
181     pvtxtree_->Branch("pullx_twovtx",&pullx_twovtx_,"pullx_twovtx[nrecPV_twovtx]/D");
182     pvtxtree_->Branch("pully_twovtx",&pully_twovtx_,"pully_twovtx[nrecPV_twovtx]/D");
183     pvtxtree_->Branch("pullz_twovtx",&pullz_twovtx_,"pullz_twovtx[nrecPV_twovtx]/D");
184    
185     // MC variables
186     if(!realData_) {
187     pvtxtree_->Branch("nsimPV",&nsimPV_,"nsimPV/I");
188     pvtxtree_->Branch("nsimTrkPV",&nsimTrkPV_,"nsimTrkPV[nsimPV]/I");
189     pvtxtree_->Branch("simx",&simx_,"simx[nsimPV]/D");
190     pvtxtree_->Branch("simy",&simy_,"simy[nsimPV]/D");
191     pvtxtree_->Branch("simz",&simz_,"simz[nsimPV]/D");
192     pvtxtree_->Branch("simptsq",&simptsq_,"simptsq[nsimPV]/D");
193    
194     // For pvtxs with all the tracks
195     pvtxtree_->Branch("nrecPV_mct",&nrecPV_mct_,"nrecPV_mct/I");
196     pvtxtree_->Branch("deltax_mct",&deltax_mct_,"deltax_mct[nrecPV_mct]/D");
197     pvtxtree_->Branch("deltay_mct",&deltay_mct_,"deltay_mct[nrecPV_mct]/D");
198     pvtxtree_->Branch("deltaz_mct",&deltaz_mct_,"deltaz_mct[nrecPV_mct]/D");
199     pvtxtree_->Branch("pullx_mct",&pullx_mct_,"pullx_mct[nrecPV_mct]/D");
200     pvtxtree_->Branch("pully_mct",&pully_mct_,"pully_mct[nrecPV_mct]/D");
201     pvtxtree_->Branch("pullz_mct",&pullz_mct_,"pullz_mct[nrecPV_mct]/D");
202     // For pvtxs with splittracks1
203     pvtxtree_->Branch("nrecPV_spl1_mct",&nrecPV_spl1_mct_,"nrecPV_spl1_mct/I");
204     pvtxtree_->Branch("deltax_spl1_mct",&deltax_spl1_mct_,"deltax_spl1_mct[nrecPV_spl1_mct]/D");
205     pvtxtree_->Branch("deltay_spl1_mct",&deltay_spl1_mct_,"deltay_spl1_mct[nrecPV_spl1_mct]/D");
206     pvtxtree_->Branch("deltaz_spl1_mct",&deltaz_spl1_mct_,"deltaz_spl1_mct[nrecPV_spl1_mct]/D");
207     pvtxtree_->Branch("pullx_spl1_mct",&pullx_spl1_mct_,"pullx_spl1_mct[nrecPV_spl1_mct]/D");
208     pvtxtree_->Branch("pully_spl1_mct",&pully_spl1_mct_,"pully_spl1_mct[nrecPV_spl1_mct]/D");
209     pvtxtree_->Branch("pullz_spl1_mct",&pullz_spl1_mct_,"pullz_spl1_mct[nrecPV_spl1_mct]/D");
210     // For pvtxs with splittracks1
211     pvtxtree_->Branch("nrecPV_spl2_mct",&nrecPV_spl2_mct_,"nrecPV_spl2_mct/I");
212     pvtxtree_->Branch("deltax_spl2_mct",&deltax_spl2_mct_,"deltax_spl2_mct[nrecPV_spl2_mct]/D");
213     pvtxtree_->Branch("deltay_spl2_mct",&deltay_spl2_mct_,"deltay_spl2_mct[nrecPV_spl2_mct]/D");
214     pvtxtree_->Branch("deltaz_spl2_mct",&deltaz_spl2_mct_,"deltaz_spl2_mct[nrecPV_spl2_mct]/D");
215     pvtxtree_->Branch("pullx_spl2_mct",&pullx_spl2_mct_,"pullx_spl2_mct[nrecPV_spl2_mct]/D");
216     pvtxtree_->Branch("pully_spl2_mct",&pully_spl2_mct_,"pully_spl2_mct[nrecPV_spl2_mct]/D");
217     pvtxtree_->Branch("pullz_spl2_mct",&pullz_spl2_mct_,"pullz_spl2_mct[nrecPV_spl2_mct]/D");
218 yygao 1.7 }
219     }
220    
221 jengbou 1.4 setRootStyle();
222 yygao 1.10
223 jengbou 1.13 // Create a root file for histograms
224     theFile = new TFile(histoFileName_.c_str(), "RECREATE");
225     // make diretories
226     theFile->mkdir("Summary");
227     theFile->cd();
228     theFile->mkdir("Others");
229     theFile->cd();
230    
231     // Book Histograms:
232     h_pvtrk = new PVHistograms();
233     h_pixvtx = new PVHistograms();
234     h_misc = new PVHistograms();
235     h_summary = new PVHistograms();
236     h_others = new PVHistograms();
237    
238     for(int i=0;i<3;i++) {
239     if(i == 0) h_pvtrk->Init("pvTrk");
240     else {
241     stringstream ss;
242     ss << i;
243     h_pvtrk->Init("pvTrk",ss.str(),"spl");
244 yygao 1.7 }
245 jengbou 1.13 }
246     h_pixvtx->Init("pixVtx");
247     h_misc->Init("misc");
248    
249     // Book MC only plots
250     if (!realData_) {
251     h_gen = new PVHistograms();
252     h_gen->Init("generator");
253     }
254 yygao 1.10
255 yygao 1.7 //Book histograms sensitive to data/mc
256     for (vector<int>::const_iterator it= datamode.begin(); it != datamode.end() ; ++it) {
257     string suffix;
258     if(verbose_) cout<<"datamode = "<< *it<<endl;
259     switch(*it) {
260     case 0: suffix = "";
261     break;
262     case 1: suffix = "_spl1_mct";
263     break;
264     case 2: suffix = "_spl2_mct";
265     break;
266     case 3: suffix = "_mct";
267     break;
268 jengbou 1.2 }
269 jengbou 1.13 h_summary->Init("summary",suffix);
270 yygao 1.7
271     // Book residual, error and pull histograms for each nTrk bin
272 jengbou 1.1 for (int ntrk=nTrkMin_;ntrk<=nTrkMax_;++ntrk) {
273     stringstream ss;
274     ss << ntrk;
275 jengbou 1.13 h_others->Init("others",suffix,ss.str());
276     }
277    
278 yygao 1.7 // Book residual and pull histograms only when analyzeOntheFly is enabled
279     if(analyze_) {
280 jengbou 1.13 h_ana = new PVHistograms();
281     h_ana->InitA("analysis",suffix,"nTrk",nTrkMin_,nTrkMax_);
282     }
283 yygao 1.7 suffix.clear();
284 yygao 1.10 } // End of Book histograms sensitive to data/mc
285 yygao 1.11
286 jengbou 1.1 }
287    
288     PVStudy::~PVStudy()
289     {
290 jengbou 1.13 theFile->cd();
291     theFile->cd("Summary");
292     h_pvtrk->Save();
293     h_pixvtx->Save();
294     h_gen->Save();
295     h_misc->Save();
296     h_summary->Save();
297     if (analyze_)
298     h_ana->Save();
299     theFile->cd();
300     theFile->cd("Others");
301     h_others->Save();
302 jengbou 1.1
303 jengbou 1.13 theFile->Close();
304 jengbou 1.1 }
305    
306 jengbou 1.4 void PVStudy::setRootStyle() {
307     //
308     gROOT->SetStyle("Plain");
309     gStyle->SetFillColor(1);
310     gStyle->SetOptDate();
311     // gStyle->SetOptStat(1111110);
312     // gStyle->SetOptFit(0111);
313     // gStyle->SetPadTickX(1);
314     // gStyle->SetPadTickY(1);
315     gStyle->SetMarkerSize(0.5);
316     gStyle->SetMarkerStyle(8);
317     gStyle->SetGridStyle(3);
318     //gStyle->SetPadGridX(1);
319     //gStyle->SetPadGridY(1);
320     gStyle->SetPaperSize(TStyle::kA4);
321     gStyle->SetStatW(0.25); // width of statistics box; default is 0.19
322     // gStyle->SetStatH(0.10); // height of statistics box; default is 0.1
323     gStyle->SetStatFormat("6.4g"); // leave default format for now
324     gStyle->SetTitleSize(0.055, ""); // size for pad title; default is 0.02
325     gStyle->SetLabelSize(0.03, "XYZ"); // size for axis labels; default is 0.04
326     gStyle->SetStatFontSize(0.08); // size for stat. box
327     gStyle->SetTitleFont(32, "XYZ"); // times-bold-italic font (p. 153) for axes
328     gStyle->SetTitleFont(32, ""); // same for pad title
329     gStyle->SetLabelFont(32, "XYZ"); // same for axis labels
330     gStyle->SetStatFont(32); // same for stat. box
331     gStyle->SetLabelOffset(0.006, "Y"); // default is 0.005
332     //
333     return;
334     }
335 jengbou 1.1 //
336     // member functions
337     //
338     std::vector<PVStudy::simPrimaryVertex> PVStudy::getSimPVs(const Handle<HepMCProduct> evtMC, std::string suffix="")
339     {
340     std::vector<PVStudy::simPrimaryVertex> simpv;
341     const HepMC::GenEvent* evt=evtMC->GetEvent();
342     if (evt) {
343     if(verbose_) {
344     cout << "process id " << evt->signal_process_id()<<endl;
345     cout << "signal process vertex " << ( evt->signal_process_vertex() ?
346     evt->signal_process_vertex()->barcode() : 0 ) <<endl;
347     cout << "number of vertices " << evt->vertices_size() << endl;
348     }
349    
350 jengbou 1.6 int idx=0; int npv=0;
351 jengbou 1.1 for(HepMC::GenEvent::vertex_const_iterator vitr= evt->vertices_begin();
352 jengbou 1.6 vitr != evt->vertices_end(); ++vitr ) { // loop for vertex ...
353     HepMC::FourVector pos = (*vitr)->position();
354     //HepLorentzVector pos = (*vitr)->position();
355    
356     // t component of PV:
357     for ( HepMC::GenVertex::particle_iterator mother = (*vitr)->particles_begin(HepMC::parents);
358     mother != (*vitr)->particles_end(HepMC::parents); ++mother ) {
359     // std::cout << "Status = " << (*mother)->status() << std::endl;
360     HepMC::GenVertex * mv=(*mother)->production_vertex();
361     if( ((*mother)->status() == 3) && (!mv)) {
362     // std::cout << "npv= " << npv << std::endl;
363     if (npv == 0) {
364 jengbou 1.13 h_gen->Fill1d("genPart_cT", pos.t()); // mm
365     h_gen->Fill1d("genPart_T", pos.t()/299.792458); // ns
366 jengbou 1.6 }
367     npv++;
368     }
369     }
370     // if (pos.t()>0) { continue;} // for 22X when t of PV was not smeared
371 jengbou 1.1
372 jengbou 1.6 bool hasMotherVertex=false;
373     if(verbose_) cout << "mothers of vertex[" << ++idx << "]: " << endl;
374     for ( HepMC::GenVertex::particle_iterator mother = (*vitr)->particles_begin(HepMC::parents);
375     mother != (*vitr)->particles_end(HepMC::parents); ++mother ) {
376     HepMC::GenVertex * mv=(*mother)->production_vertex();
377     // std::cout << "Status = " << (*mother)->status() << std::endl;
378     if (mv) {
379     hasMotherVertex=true;
380     if(!verbose_) break; //if verbose_, print all particles of gen vertices
381     }
382     if(verbose_) {
383     cout << "\t";
384     (*mother)->print();
385     }
386     }
387    
388     if(hasMotherVertex) continue;
389    
390     // could be a new vertex, check all primaries found so far to avoid multiple entries
391     const double mm2cm=0.1;
392     simPrimaryVertex sv(pos.x()*mm2cm,pos.y()*mm2cm,pos.z()*mm2cm); // sim unit mm, rec unit cm
393     simPrimaryVertex *vp=NULL; // will become non-NULL if a vertex is found and then point to it
394     for(vector<simPrimaryVertex>::iterator v0=simpv.begin();
395     v0!=simpv.end(); v0++){
396     if( (fabs(sv.x-v0->x)<1e-5) && (fabs(sv.y-v0->y)<1e-5) && (fabs(sv.z-v0->z)<1e-5)){
397     vp=&(*v0);
398     break;
399 jengbou 1.1 }
400 jengbou 1.6 }
401 jengbou 1.1
402 jengbou 1.6 if(!vp){
403     // this is a new vertex
404     if(verbose_) cout << "this is a new vertex " << sv.x << " " << sv.y << " " << sv.z << endl;
405     simpv.push_back(sv);
406     vp=&simpv.back();
407     }else{
408     if(verbose_) cout << "this is not a new vertex " << sv.x << " " << sv.y << " " << sv.z << endl;
409     }
410     vp->genVertex.push_back((*vitr)->barcode());
411     // collect final state descendants
412     for ( HepMC::GenVertex::particle_iterator daughter = (*vitr)->particles_begin(HepMC::descendants);
413     daughter != (*vitr)->particles_end(HepMC::descendants);
414     ++daughter ) {
415     if (isFinalstateParticle(*daughter)){
416     if ( find(vp->finalstateParticles.begin(), vp->finalstateParticles.end(),(*daughter)->barcode())
417     == vp->finalstateParticles.end()){
418     vp->finalstateParticles.push_back((*daughter)->barcode());
419     HepMC::FourVector m=(*daughter)->momentum();
420     // the next four lines used to be "vp->ptot+=m;" in the days of CLHEP::HepLorentzVector
421     // but adding FourVectors seems not to be foreseen
422     vp->ptot.setPx(vp->ptot.px()+m.px());
423     vp->ptot.setPy(vp->ptot.py()+m.py());
424     vp->ptot.setPz(vp->ptot.pz()+m.pz());
425     vp->ptot.setE(vp->ptot.e()+m.e());
426     vp->ptsq+=(m.perp())*(m.perp());
427     if ( (m.perp()>0.8) && (fabs(m.pseudoRapidity())<2.5) && isCharged( *daughter ) ){
428     vp->nGenTrk++;
429 jengbou 1.1 }
430     }
431     }
432 jengbou 1.13 }//loop MC vertices daughters
433     }//loop MC vertices
434 jengbou 1.1 }
435     return simpv;
436     }
437    
438     std::vector<PVStudy::simPrimaryVertex> PVStudy::getSimPVs(const Handle<HepMCProduct> evtMC,
439     const Handle<SimVertexContainer> simVtxs,
440     const Handle<SimTrackContainer> simTrks)
441     {
442     // simvertices don't have enough information to decide,
443     // genVertices don't have the simulated coordinates ( with VtxSmeared they might)
444     // go through simtracks to get the link between simulated and generated vertices
445     std::vector<PVStudy::simPrimaryVertex> simpv;
446     int idx=0;
447     for(SimTrackContainer::const_iterator t=simTrks->begin();
448     t!=simTrks->end(); ++t){
449     if ( !(t->noVertex()) && !(t->type()==-99) ){
450     double ptsq=0;
451     bool primary=false; // something coming directly from the primary vertex
452     bool resonance=false; // resonance
453     bool track=false; // undecayed, charged particle
454     HepMC::GenParticle* gp=evtMC->GetEvent()->barcode_to_particle( (*t).genpartIndex() );
455     if (gp) {
456     HepMC::GenVertex * gv=gp->production_vertex();
457     if (gv) {
458     for ( HepMC::GenVertex::particle_iterator
459     daughter = gv->particles_begin(HepMC::descendants);
460     daughter != gv->particles_end(HepMC::descendants);
461     ++daughter ) {
462     if (isFinalstateParticle(*daughter)){
463     ptsq+=(*daughter)->momentum().perp()*(*daughter)->momentum().perp();
464     }
465     }
466 jengbou 1.13 //primary = ( gv->position().t()==0 );
467     primary = true;
468     h_gen->Fill1d("genPart_cT", gv->position().t()); // mm
469     h_gen->Fill1d("genPart_T", gv->position().t()/299.792458); // ns
470    
471 jengbou 1.1 //resonance= ( gp->mother() && isResonance(gp->mother())); // in CLHEP/HepMC days
472     // no more mother pointer in the improved HepMC GenParticle
473     resonance= ( isResonance(*(gp->production_vertex()->particles_in_const_begin())));
474     if (gp->status()==1){
475     //track=((pdt->particle(gp->pdg_id()))->charge() != 0);
476     track=not isCharged(gp);
477     }
478     }
479     }
480    
481     const HepMC::FourVector & v=(*simVtxs)[t->vertIndex()].position();
482     //const HepLorentzVector & v=(*simVtxs)[t->vertIndex()].position();
483     if(primary or resonance){
484     {
485     // check all primaries found so far to avoid multiple entries
486     bool newVertex=true;
487     for(std::vector<PVStudy::simPrimaryVertex>::iterator v0=simpv.begin();
488     v0!=simpv.end(); v0++){
489     if( (fabs(v0->x-v.x())<0.001) && (fabs(v0->y-v.y())<0.001) && (fabs(v0->z-v.z())<0.001) ){
490     if (track) {
491     v0->simTrackIndex.push_back(idx);
492     if (ptsq>(*v0).ptsq){(*v0).ptsq=ptsq;}
493     }
494     newVertex=false;
495     }
496     }
497     if(newVertex && !resonance){
498     PVStudy::simPrimaryVertex anotherVertex(v.x(),v.y(),v.z());
499     if (track) anotherVertex.simTrackIndex.push_back(idx);
500     anotherVertex.ptsq=ptsq;
501     simpv.push_back(anotherVertex);
502     }
503     }//
504     }
505    
506     }// simtrack has vertex and valid type
507     idx++;
508     }//simTrack loop
509     return simpv;
510     }
511    
512     // ------------ method called to for each event ------------
513     void
514     PVStudy::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
515     {
516     using namespace edm;
517 yygao 1.7 using namespace reco;
518    
519     if (verbose_)
520     cout<<"PVStudy::analyze():"<<endl;
521     //=======================================================
522     // Initialize Root-tuple variables if needed
523     //=======================================================
524 jengbou 1.8 //if(saventuple_)
525 yygao 1.9 SetVarToZero();
526 yygao 1.7
527     //=======================================================
528     // Track accessors
529     //=======================================================
530     //trackCollection
531     static const reco::TrackCollection s_empty_trackColl;
532     const reco::TrackCollection *trackColl = &s_empty_trackColl;
533     edm::Handle<reco::TrackCollection> trackCollectionHandle;
534     iEvent.getByLabel(trackCollectionTag_, trackCollectionHandle);
535     if( iEvent.getByLabel(trackCollectionTag_, trackCollectionHandle)) {
536     trackColl = trackCollectionHandle.product();
537     } else {
538     cout << "trackCollection cannot be found -> using empty collection of same type." <<endl;
539     }
540 yygao 1.10
541 yygao 1.7 //splitTrackCollection1
542     static const reco::TrackCollection s_empty_splitTrackColl1;
543     const reco::TrackCollection *splitTrackColl1 = &s_empty_splitTrackColl1;
544     edm::Handle<reco::TrackCollection> splitTrackCollection1Handle;
545     iEvent.getByLabel(splitTrackCollection1Tag_, splitTrackCollection1Handle);
546     if( iEvent.getByLabel(splitTrackCollection1Tag_, splitTrackCollection1Handle)) {
547     splitTrackColl1 = splitTrackCollection1Handle.product();
548     } else {
549     cout << "splitTrackCollection1 cannot be found -> using empty collection of same type." <<endl;
550     }
551 yygao 1.10
552 yygao 1.7 //splitTrackCollection2
553     static const reco::TrackCollection s_empty_splitTrackColl2;
554     const reco::TrackCollection *splitTrackColl2 = &s_empty_splitTrackColl2;
555     edm::Handle<reco::TrackCollection> splitTrackCollection2Handle;
556     iEvent.getByLabel(splitTrackCollection2Tag_, splitTrackCollection2Handle);
557     if( iEvent.getByLabel(splitTrackCollection2Tag_, splitTrackCollection2Handle)) {
558     splitTrackColl2 = splitTrackCollection2Handle.product();
559     } else {
560     cout << "splitTrackCollection2 cannot be found -> using empty collection of same type." <<endl;
561     }
562 yygao 1.10
563    
564 jengbou 1.13 //=======================================================
565 yygao 1.10 // Fill trackparameters of the input tracks to pvtx fitter
566     //=======================================================
567     if(verbose_)
568     cout<<"Start filling track parameters of the input tracks to pvtx fitter."<<endl;
569     //fillTrackHisto(const reco::TrackCollection *trackColl, int datatype)
570     // datatype: unsplittracks (0); splittracks1 (1); splittracks2 (2);
571     fillTrackHisto(trackColl, 0);
572     fillTrackHisto(splitTrackColl1, 1);
573     fillTrackHisto(splitTrackColl2, 2);
574     if(verbose_)
575     cout<<"End filling track parameters of the input tracks to pvtx fitter."<<endl;
576    
577 yygao 1.7 //=======================================================
578     // PVTX accessors
579     //=======================================================
580     //vertexCollection
581     static const reco::VertexCollection s_empty_vertexColl;
582     const reco::VertexCollection *vertexColl = &s_empty_vertexColl;
583     edm::Handle<reco::VertexCollection> vertexCollectionHandle;
584     iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle);
585     if( iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle)) {
586     vertexColl = vertexCollectionHandle.product();
587     } else {
588     cout << "vertexCollection cannot be found -> using empty collection of same type." <<endl;
589     }
590 yygao 1.10
591 yygao 1.7 //splitVertexCollection1
592     static const reco::VertexCollection s_empty_splitVertexColl1;
593     const reco::VertexCollection *splitVertexColl1 = &s_empty_splitVertexColl1;
594     edm::Handle<reco::VertexCollection> splitVertexCollection1Handle;
595     iEvent.getByLabel(splitVertexCollection1Tag_, splitVertexCollection1Handle);
596     if( iEvent.getByLabel(splitVertexCollection1Tag_, splitVertexCollection1Handle)) {
597     splitVertexColl1 = splitVertexCollection1Handle.product();
598     } else {
599     cout << "splitVertexCollection1 cannot be found -> using empty collection of same type." <<endl;
600 yygao 1.10 }
601    
602 yygao 1.7 //splitVertexCollection2
603     static const reco::VertexCollection s_empty_splitVertexColl2;
604     const reco::VertexCollection *splitVertexColl2 = &s_empty_splitVertexColl2;
605     edm::Handle<reco::VertexCollection> splitVertexCollection2Handle;
606     iEvent.getByLabel(splitVertexCollection2Tag_, splitVertexCollection2Handle);
607     if( iEvent.getByLabel(splitVertexCollection2Tag_, splitVertexCollection2Handle)) {
608     splitVertexColl2 = splitVertexCollection2Handle.product();
609     } else {
610     cout << "splitVertexCollection2 cannot be found -> using empty collection of same type." <<endl;
611     }
612 yygao 1.10
613 yygao 1.9 if(verbose_) cout<<"End accessing the track and vertex collections"<<endl;
614 yygao 1.7
615     //=======================================================
616     // MC simvtx accessor
617     //=======================================================
618 jengbou 1.1 if (!realData_) {
619 yygao 1.7 edm::Handle<SimVertexContainer> simVtxs;
620 jengbou 1.1 iEvent.getByLabel( simG4_, simVtxs);
621    
622 yygao 1.7 edm::Handle<SimTrackContainer> simTrks;
623 jengbou 1.1 iEvent.getByLabel( simG4_, simTrks);
624     }
625    
626 yygao 1.7 //=======================================================
627     // GET PDT
628     //=======================================================
629 jengbou 1.1 try{
630     iSetup.getData(pdt);
631     }catch(const Exception&){
632     cout << "Some problem occurred with the particle data table. This may not work !." <<endl;
633     }
634 yygao 1.10
635     //=======================================================
636     // GET pixelVertices
637     //=======================================================
638     static const reco::VertexCollection s_empty_pixelVertexColl;
639     const reco::VertexCollection *pixelVertexColl = &s_empty_pixelVertexColl;
640     edm::Handle<reco::VertexCollection> pixelVertexCollectionHandle;
641     iEvent.getByLabel(pixelVertexCollectionTag_, pixelVertexCollectionHandle);
642     if( iEvent.getByLabel(pixelVertexCollectionTag_, pixelVertexCollectionHandle)) {
643     pixelVertexColl = pixelVertexCollectionHandle.product();
644     } else {
645     cout << "pixelVertexCollection cannot be found. -> using empty collection of same type." <<endl;
646     }
647 jengbou 1.1
648 yygao 1.7 //=======================================================
649 yygao 1.10 // Fill pixelVertices related histograms
650 yygao 1.7 //=======================================================
651 yygao 1.11 nrecPV_pxlpvtx_ = int (pixelVertexColl->size());
652 yygao 1.10 if(pixelVertexColl->size()>0 && pixelVertexColl->begin()->isValid() && !(pixelVertexColl->begin()->isFake())) {
653 yygao 1.11 //fillTrackHistoInPV(const reco::VertexCollection *vertexColl, int datatype, bool fillHisto, bool fillNtuple) {
654     fillTrackHistoInPV(pixelVertexColl, 4, false, true);
655 jengbou 1.13 h_pixvtx->Fill1d("dzErr_pxlpvtx", pixelVertexColl->begin()->zError());
656 yygao 1.10 // Get the dZ error of the tracks in the leading pixelVertexColl
657     for(reco::Vertex::trackRef_iterator t = (pixelVertexColl->begin())->tracks_begin();
658     t!= (pixelVertexColl->begin())->tracks_end(); t++) {
659    
660     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
661 jengbou 1.13 // h_pvtrk->Fill1d("trkPtPV", 0.);
662 yygao 1.10 }
663     else
664 jengbou 1.13 h_pixvtx->Fill1d("trkdzErr_pxlpvtx", (**t).dzError());
665 yygao 1.10 }
666     // Fill the track->dz() in the PV difference from first pixelpvtx
667     for(reco::Vertex::trackRef_iterator t = (vertexColl->begin())->tracks_begin();
668     t!= (vertexColl->begin())->tracks_end(); t++) {
669     // illegal charge
670     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
671 jengbou 1.13 // h_pvtrk->Fill1d("trkPtPV", 0.);
672 yygao 1.10 }
673     else {
674     if(pixelVertexColl->size()>0) {
675 jengbou 1.13 h_pixvtx->Fill1d("trkdz_pxlpvtxdz", (**t).dz() - pixelVertexColl->begin()->z());
676     h_pixvtx->Fill1d("trkdz_pxlpvtxdz_pxlpvtxdzerr", fabs((**t).dz() - pixelVertexColl->begin()->z())/pixelVertexColl->begin()->zError());
677     h_pixvtx->Fill1d("trkdz_pxlpvtxdz_trkdzerr", fabs((**t).dz() - pixelVertexColl->begin()->z())/(**t).dzError());
678     h_pixvtx->Fill1d("trkdzErr_pvtx", (**t).dzError());
679 yygao 1.10 }
680     }
681     }
682     }
683 yygao 1.7
684     //=======================================================
685 yygao 1.11 // Fill number of reconstructed vertices
686 yygao 1.7 //=======================================================
687 yygao 1.10
688 yygao 1.7 if(verbose_) {
689     cout<<"PVStudy::analyze() Printing vertexCollection: "<<endl;
690     printRecVtxs(vertexCollectionHandle);
691     cout<<"PVStudy::analyze() Printing splitVertexCollection1: "<<endl;
692     printRecVtxs(splitVertexCollection1Handle);
693     cout<<"PVStudy::analyze() Printing splitVertexCollection2: "<<endl;
694     printRecVtxs(splitVertexCollection2Handle);
695 yygao 1.9 cout<<"Start filling pvtx parameters."<<endl;
696 yygao 1.7 }
697 yygao 1.10
698 yygao 1.9 nrecPV_ = int (vertexColl->size());
699     nrecPV1_spl_ = int (splitVertexColl1->size());
700     nrecPV2_spl_ = int (splitVertexColl2->size());
701 jengbou 1.8
702 jengbou 1.13 h_pvtrk->Fill1d("nrecPV", nrecPV_);
703     h_pvtrk->Fill1d("nrecPV1_spl", nrecPV1_spl_);
704     h_pvtrk->Fill1d("nrecPV2_spl", nrecPV2_spl_);
705     h_misc->Fill1d("nrecPVDiff", double(nrecPV1_spl_)-double(nrecPV2_spl_));
706 yygao 1.11
707 yygao 1.10 //=================================================================
708     // Fill track parameter ntuple/hist for tracks used in recoVertices
709     //=================================================================
710    
711     //fillTrackHistoInPV(const reco::VertexCollection *vertexColl, int datatype, bool fillHisto, bool fillNtuple) {
712     if(vertexColl->size() > 0 && vertexColl->begin()->isValid() && !(vertexColl->begin()->isFake()))
713     fillTrackHistoInPV(vertexColl, 0, true, true);
714    
715     if(splitVertexColl1->size() > 0 && splitVertexColl1->begin()->isValid() && !(splitVertexColl1->begin()->isFake()))
716     fillTrackHistoInPV(splitVertexColl1, 1, false, true);
717    
718     if(splitVertexColl1->size() > 0 && splitVertexColl2->begin()->isValid() && !(splitVertexColl2->begin()->isFake()))
719     fillTrackHistoInPV(splitVertexColl2, 2, false, true);
720    
721 yygao 1.11
722     //=======================================================
723     // Compare offlinePrimaryVertices with pixelVertices
724     //=======================================================
725     if( (pixelVertexColl->size()>0 && pixelVertexColl->begin()->isValid() && !(pixelVertexColl->begin()->isFake()))
726     && (vertexColl->size()>0 && vertexColl->begin()->isValid() && !(vertexColl->begin()->isFake())) ) {
727 jengbou 1.13 h_pixvtx->Fill1d("nrecPV_minus_nrecPxlPV", double (nrecPV_ - nrecPV_pxlpvtx_));
728 yygao 1.11 // difference in reconstructed position of the leading pvtx
729     //cout<<"recx_[0] = "<< recx_[0] << "recx_pxlpvtx_[0] = "<< recx_pxlpvtx_[0]<<endl;
730     //cout<<"recy_[0] = "<< recy_[0] << "recy_pxlpvtx_[0] = "<< recy_pxlpvtx_[0]<<endl;
731 jengbou 1.13 h_pixvtx->Fill1d("recxPV_minus_recxPxlPV", recx_[0] - recx_pxlpvtx_[0]);
732     h_pixvtx->Fill1d("recyPV_minus_recyPxlPV", recy_[0] - recy_pxlpvtx_[0]);
733     h_pixvtx->Fill1d("reczPV_minus_reczPxlPV", recz_[0] - recz_pxlpvtx_[0]);
734 yygao 1.11 }
735    
736    
737    
738 yygao 1.10 //==========================================================
739     // Fill secondary/primary min separations for multi-vertices
740     //==========================================================
741    
742     if(vertexColl->size()>1 && vertexColl->begin()->isValid() && !(vertexColl->begin()->isFake()) ) {
743    
744     double min_xsep = 9999.0;
745     double min_ysep = 9999.0;
746     double min_zsep = 9999.0;
747     double min_xsep_sign = 9999.0;
748     double min_ysep_sign = 9999.0;
749     double min_zsep_sign = 9999.0;
750     double min_ntrksep = 9999.0;
751     double min_sumpt2sep = 9999999.0;
752 yygao 1.9
753 yygao 1.10 if(verbose_) cout<<"leading pvtx z = "<< vertexColl->begin()->z() <<endl;
754    
755     // Looping through the secondary vertices to find the mininum separation to the primary
756     for(reco::VertexCollection::const_iterator v=vertexColl->begin() + 1 ;
757     v!=vertexColl->end(); ++v) {
758     if(v->isValid() && ! v->isFake()) {
759     // xsep
760     if(fabs(v->x()- vertexColl->begin()->x())<min_xsep)
761     min_xsep = fabs(v->x()- vertexColl->begin()->x());
762     // ysep
763     if(fabs(v->y()- vertexColl->begin()->y())<min_ysep)
764     min_ysep = fabs(v->y()- vertexColl->begin()->y());
765     // zsep
766     if(fabs(v->z()- vertexColl->begin()->z())<min_zsep)
767     min_zsep = fabs(v->z()- vertexColl->begin()->z());
768     // xsep_sign
769     double xsep_sign = fabs(v->x()- vertexColl->begin()->x())/max(v->xError(), vertexColl->begin()->xError());
770     if(xsep_sign < min_xsep_sign)
771     min_xsep_sign = xsep_sign;
772     // ysep_sign
773     double ysep_sign = fabs(v->y()- vertexColl->begin()->y())/max(v->yError(), vertexColl->begin()->yError());
774     if(ysep_sign < min_ysep_sign)
775     min_ysep_sign = ysep_sign;
776     // zsep_sign
777     double zsep_sign = fabs(v->z()- vertexColl->begin()->z())/max(v->zError(), vertexColl->begin()->zError());
778     if(zsep_sign < min_zsep_sign)
779     min_zsep_sign = zsep_sign;
780     // ntrksep
781     if( (double(vertexColl->begin()->tracksSize()) - double(v->tracksSize())) < min_ntrksep)
782     min_ntrksep = double(vertexColl->begin()->tracksSize()) - double(v->tracksSize());
783     // sumpt2sep
784     if(fabs(sumPtSquared(*v) - sumPtSquared(*(vertexColl->begin()))) < min_sumpt2sep)
785     min_sumpt2sep = fabs(sumPtSquared(*v) - sumPtSquared(*(vertexColl->begin())));
786     }
787     }
788 jengbou 1.13 h_misc->Fill1d("min_xsep", min_xsep);
789     h_misc->Fill1d("min_ysep", min_ysep);
790     h_misc->Fill1d("min_zsep", min_zsep);
791     h_misc->Fill1d("min_xsep_sign", min_xsep_sign);
792     h_misc->Fill1d("min_ysep_sign", min_ysep_sign);
793     h_misc->Fill1d("min_zsep_sign", min_zsep_sign);
794     h_misc->Fill1d("min_ntrksep", min_ntrksep);
795     h_misc->Fill1d("min_sumpt2sep", min_sumpt2sep);
796 yygao 1.10
797     min_zsep_ = min_zsep;
798     min_ntrksep_ = min_ntrksep;
799     min_sumpt2sep_ = min_sumpt2sep;
800    
801    
802     } // End of if(vertexColl->size()>1) {
803    
804 yygao 1.9 if(verbose_)
805     cout<<"End filling pvtx parameters."<<endl;
806 yygao 1.7
807 yygao 1.9 //=======================================================
808     // PrimaryVertex Matching
809     // 1. In z |z1-z2|< zsigncut * max(sigmaz1, sigmaz2)
810     // 2. |(nTrkPV1 - nTrkPV2)/(nTrkPV1+nTrkPV2)|<ntrkdiffcut_
811     // Assume the first match is the primary vertex,
812     // since vertexColl are sorted in decreasing order of sum(pT)
813     //=======================================================
814    
815     if(verbose_) cout<<"PVStudy::analyze(): matching pvtxs "<<endl;
816     reco::VertexCollection s_empty_matchedVertexColl1;
817     reco::VertexCollection *matchedVertexColl1 = &s_empty_matchedVertexColl1;
818     matchedVertexColl1->reserve(splitVertexColl1->size());
819     reco::VertexCollection s_empty_matchedVertexColl2;
820     reco::VertexCollection *matchedVertexColl2 = &s_empty_matchedVertexColl2;
821     matchedVertexColl2->reserve(splitVertexColl2->size());
822 yygao 1.7
823 yygao 1.10 bool stopmatching = false;
824     for (size_t ivtx = 0; ivtx<splitVertexCollection1Handle->size() && !stopmatching; ++ivtx) {
825 yygao 1.9 reco::VertexRef recvtx1(splitVertexCollection1Handle, ivtx);
826 yygao 1.10 if( !(recvtx1->isValid()) || recvtx1->isFake()) break;
827     for (size_t jvtx = ivtx; jvtx < splitVertexCollection2Handle->size(); ++jvtx) {
828     //------------------------------------------------------------------------
829     //== If only considering matching the first vertex of the splitVertexColl
830     //------------------------------------------------------------------------
831     if (ivtx!=0 || jvtx!=0) { stopmatching = true; break; }
832 yygao 1.9 reco::VertexRef recvtx2(splitVertexCollection2Handle, jvtx);
833 yygao 1.10 if( !(recvtx2->isValid()) || recvtx2->isFake()) break;
834     if(verbose_) {
835     cout<<"Matching splitVertexColl1: # "<< ivtx<< " and splitVertexColl1: # "<<jvtx<<endl;
836     cout<<"recvtx1->z() = " << recvtx1->z() << "+/- "<< recvtx1->zError() << "." << endl;
837     cout<<"recvtx2->z() = " << recvtx2->z() << "+/- "<< recvtx2->zError() << "." << endl;
838     }
839 yygao 1.9 if(matchVertex(recvtx1, recvtx2, zsigncut_)) {
840     if(verbose_) {
841 yygao 1.10 cout<<"The two splitted vertices match in Z. "<<endl;
842 yygao 1.7 }
843 yygao 1.9 int nTrkPV1 = recvtx1->tracksSize();
844     int nTrkPV2 = recvtx2->tracksSize();
845     double ntrkreldiff = double(nTrkPV1-nTrkPV2)/double(nTrkPV1+nTrkPV2);
846 jengbou 1.13 h_misc->Fill1d("nTrkPVDiff", nTrkPV1-nTrkPV2);
847     h_misc->Fill1d("nTrkPVRelDiff", ntrkreldiff);
848 yygao 1.9 if(fabs(ntrkreldiff)<ntrkdiffcut_) {
849     if(verbose_) {
850     cout<<"(nTrkPV1-nTrkPV2)/(nTrkPV1+nTrkPV2) = " << ntrkreldiff<<endl;
851 yygao 1.7 }
852 yygao 1.9 matchedVertexColl1->push_back(*recvtx1);
853     matchedVertexColl2->push_back(*recvtx2);
854 yygao 1.10 stopmatching = true; // stop the matching when the first match is found!
855     break;
856 yygao 1.7 }
857 yygao 1.9 else
858     cout<<"WARNING: (nTrkPV1-nTrkPV2)/(nTrkPV1+nTrkPV2) = " << ntrkreldiff<<", exceeding cut "<<ntrkdiffcut_<<endl;
859 yygao 1.7 }
860 yygao 1.9 else {
861     cout<<"WARNING: The two reconstructed vertices do not match in z: "<<endl;
862     cout<<"recvtx1->z() = " << recvtx1->z() << "+/- "<< recvtx1->zError() << "." << endl;
863     cout<<"recvtx2->z() = " << recvtx2->z() << "+/- "<< recvtx2->zError() << "." << endl;
864 yygao 1.7 }
865     }
866 yygao 1.9 }
867     if(verbose_) cout<<"PVStudy::analyze(): End matching pvtxs"<<endl;
868    
869     //=======================================================
870     // Analyze matchedVertexColls
871     //=======================================================
872     if(verbose_) {
873     cout<<"Begin analyzing the matchedVertexColl with size = "<< matchedVertexColl1->size()<< endl;
874     }
875    
876     // Compare the reconstructed vertex position and calculate resolution/pulls
877     if(matchedVertexColl1->size() != 0 && matchedVertexColl2->size() != 0) {
878     //fillPvtxHisto(const reco::VertexCollection *vertexColl, int datatype, bool fillHisto, bool fillNtuple)
879     fillTrackHistoInPV(matchedVertexColl1, 1, true, false);
880     fillTrackHistoInPV(matchedVertexColl2, 2, true, false);
881    
882     reco::VertexCollection::const_iterator v1;
883     reco::VertexCollection::const_iterator v2;
884     nrecPV_twovtx_ = 0;
885     for(v1 = matchedVertexColl1->begin(), v2 = matchedVertexColl2->begin();
886     v1!=matchedVertexColl1->end(), v2 != matchedVertexColl2->end();
887     ++v1, ++v2) {
888     fres_[0] = (v1->x()-v2->x())/sqrt(2.0);
889     fres_[1] = (v1->y()-v2->y())/sqrt(2.0);
890     fres_[2] = (v1->z()-v2->z())/sqrt(2.0);
891     ferror_[0] = sqrt(pow(v1->xError(),2)+pow(v2->xError(),2))/sqrt(2);
892     ferror_[1] = sqrt(pow(v1->yError(),2)+pow(v2->yError(),2))/sqrt(2);
893     ferror_[2] = sqrt(pow(v1->zError(),2)+pow(v2->zError(),2))/sqrt(2);
894     fntrk_ = (v1->tracksSize()+v2->tracksSize())/2;
895    
896 jengbou 1.13 h_summary->Fill1d("deltax", fres_[0] );
897     h_summary->Fill1d("deltay", fres_[1] );
898     h_summary->Fill1d("deltaz", fres_[2] );
899     h_summary->Fill1d("pullx", fres_[0]/ferror_[0]);
900     h_summary->Fill1d("pully", fres_[1]/ferror_[1]);
901     h_summary->Fill1d("pullz", fres_[2]/ferror_[2]);
902     h_summary->Fill1d("errPVx", ferror_[0] );
903     h_summary->Fill1d("errPVy", ferror_[1] );
904     h_summary->Fill1d("errPVz", ferror_[2] );
905 yygao 1.9 pvinfo.push_back(PVStudy::PVInfo(res(fres_[0], fres_[1], fres_[2]),
906     error(ferror_[0], ferror_[1], ferror_[2]),
907     fntrk_));
908     // Fill histo according to its track multiplicity, set datamode = 0 for pvtx using all tracks
909     fillHisto(res(fres_[0], fres_[1], fres_[2]),
910     error(ferror_[0], ferror_[1], ferror_[2]),
911     fntrk_,0);
912     // Fill the ntuple variables
913     nTrkPV1_spl_twovtx_[nrecPV_twovtx_] = v1->tracksSize();
914     nTrkPV2_spl_twovtx_[nrecPV_twovtx_] = v2->tracksSize();
915     sumptsq1_spl_twovtx_[nrecPV_twovtx_] = sumPtSquared(*v1);
916     sumptsq2_spl_twovtx_[nrecPV_twovtx_] = sumPtSquared(*v2);
917     nTrkPV_twovtx_[nrecPV_twovtx_] = fntrk_;
918     deltax_twovtx_[nrecPV_twovtx_] = fres_[0];
919     deltay_twovtx_[nrecPV_twovtx_] = fres_[1];
920     deltaz_twovtx_[nrecPV_twovtx_] = fres_[2];
921     errx_twovtx_[nrecPV_twovtx_] = ferror_[0];
922     erry_twovtx_[nrecPV_twovtx_] = ferror_[1];
923     errz_twovtx_[nrecPV_twovtx_] = ferror_[2];
924     pullx_twovtx_[nrecPV_twovtx_] = fres_[0]/ferror_[0];
925     pully_twovtx_[nrecPV_twovtx_] = fres_[1]/ferror_[1];
926     pullz_twovtx_[nrecPV_twovtx_] = fres_[2]/ferror_[2];
927     nrecPV_twovtx_++;
928     } // End of analyzing res/pull
929     } // End of if(matchedVertexColl1->size() == 1 && matchedVertexColl2->size() == 1 ) {
930     else
931     cout<<"WARNING: Cannot find matching pvtxs"<<endl;
932    
933     if(verbose_) cout<<"End analyzing the matchedVertexColl"<<endl;
934 yygao 1.7
935     //=======================================================
936     // Fill simulated vertices
937     //=======================================================
938 jengbou 1.1 if (!realData_) {
939     bool MC=false;
940     Handle<HepMCProduct> evtMC;
941     iEvent.getByLabel("generator",evtMC);
942     if (!evtMC.isValid()) {
943     MC=false;
944     if(verbose_){
945     cout << "no HepMCProduct found"<< endl;
946     }
947     } else {
948     if(verbose_){
949     cout << "generator HepMCProduct found"<< endl;
950     }
951     MC=true;
952     }
953 yygao 1.7
954 jengbou 1.1 if(MC){
955     // make a list of primary vertices:
956     std::vector<simPrimaryVertex> simpv;
957     simpv=getSimPVs(evtMC,"");
958     // simpv=getSimPVs(evtMC, simVtxs, simTrks);
959 jengbou 1.13 h_gen->Fill1d("nsimPV", simpv.size());
960 yygao 1.9 nsimPV_ = simpv.size();
961    
962     int isimpv = 0;
963 jengbou 1.1 for(std::vector<simPrimaryVertex>::iterator vsim=simpv.begin();
964 yygao 1.9 vsim!=simpv.end(); vsim++, isimpv++){
965     nsimTrkPV_[isimpv] =vsim->nGenTrk;
966     simx_[isimpv] = vsim->x;
967     simy_[isimpv] = vsim->y;
968     simz_[isimpv] = vsim->y;
969     simptsq_[isimpv] = vsim->ptsq;
970    
971     //fillMCHisto((std::vector<simPrimaryVertex>::iterator vsim, int isimpv, const reco::VertexCollection *vtxColl, int datatype) {
972     fillMCHisto(vsim, isimpv, splitVertexColl1, 1);
973     fillMCHisto(vsim, isimpv, splitVertexColl2, 2);
974     fillMCHisto(vsim, isimpv, vertexColl, 3);
975 yygao 1.7 }
976     } // End of for(std::vector<simPrimaryVertex>::iterator vsim=simpv.begin()
977 yygao 1.9 } // End of if (!realData_) {
978    
979     // Finally fill the ftree_
980     if(saventuple_) {
981     ftree_->Fill();
982     pvtxtree_->Fill();
983     }
984 jengbou 1.1 }
985    
986     // ------------ method called once each job just before starting event loop ------------
987     void
988     PVStudy::beginJob()
989     {
990     }
991    
992     // ------------ method called once each job just after ending the event loop ------------
993     void
994     PVStudy::endJob() {
995 yygao 1.7 if (verbose_) cout << "Analyzing PV info" << endl;
996     // Looping through the datamodes available
997     for (vector<int>::const_iterator it= datamode.begin(); it != datamode.end() ; ++it) {
998     string suffix;
999     if(verbose_) cout<<"datamode = "<< *it<<endl;
1000     switch(*it) {
1001     case 0: suffix = "";
1002     break;
1003     case 1: suffix = "_spl1_mct";
1004     break;
1005     case 2: suffix = "_spl2_mct";
1006     break;
1007     case 3: suffix = "_mct";
1008     break;
1009     }
1010 yygao 1.9 if(analyze_) {
1011 jengbou 1.8 for (int ntrk=nTrkMin_;ntrk<=nTrkMax_;++ntrk) {
1012 jengbou 1.13 cout << "ntrk = " << ntrk << endl;
1013 jengbou 1.8 PVStudy::PVAnaInfo ipv = GetPVAnaInfo(ntrk,*it);
1014 jengbou 1.13 if ( ipv.res_.x() > 0 ) h_ana->Fill2d("resx"+suffix+"_nTrk", ntrk,ipv.res_.x(), 1.);
1015     if ( ipv.res_.y() > 0 ) h_ana->Fill2d("resy"+suffix+"_nTrk", ntrk,ipv.res_.y(), 1.);
1016     if ( ipv.res_.z() > 0 ) h_ana->Fill2d("resz"+suffix+"_nTrk", ntrk,ipv.res_.z(), 1.);
1017     if ( ipv.pull_.x() > 0 ) h_ana->Fill2d("pullx"+suffix+"_nTrk", ntrk,ipv.pull_.x(), 1.);
1018     if ( ipv.pull_.y() > 0 ) h_ana->Fill2d("pully"+suffix+"_nTrk", ntrk,ipv.pull_.y(), 1.);
1019     if ( ipv.pull_.z() > 0 ) h_ana->Fill2d("pullz"+suffix+"_nTrk", ntrk,ipv.pull_.z(), 1.);
1020 jengbou 1.2 }
1021 yygao 1.9 }
1022 yygao 1.7 suffix.clear();
1023 jengbou 1.1 }
1024 jengbou 1.8 if(saventuple_) {
1025     file_->cd();
1026     ftree_->Write();
1027 yygao 1.9 pvtxtree_->Write();
1028 jengbou 1.8 file_->Close();
1029     }
1030 jengbou 1.1 }
1031    
1032 yygao 1.7
1033    
1034     // Match a recovertex with a simvertex
1035     // ? Should the cut be parameter dependent?
1036     // cut can be within n sigma of the vertex.zerror()
1037 jengbou 1.1 bool PVStudy::matchVertex(const PVStudy::simPrimaryVertex & vsim,
1038     const reco::Vertex & vrec)
1039     {
1040     return (fabs(vsim.z-vrec.z())<0.0500); // =500um
1041     }
1042    
1043 yygao 1.7 // Match two reconstructed vertices
1044 yygao 1.9 bool PVStudy::matchVertex( const reco::VertexRef & vrec1,
1045     const reco::VertexRef & vrec2,
1046     int zsigncut)
1047 yygao 1.7 {
1048 yygao 1.9 double cut = zsigncut*max(vrec1->zError(), vrec2->zError());
1049     if(verbose_)
1050     cout<<"The matching criteria in z is "<<cut<<endl;
1051     return (fabs(vrec1->z()-vrec2->z())<cut);
1052 yygao 1.7 }
1053    
1054    
1055 jengbou 1.1 bool PVStudy::isResonance(const HepMC::GenParticle * p){
1056     double ctau=(pdt->particle( abs(p->pdg_id()) ))->lifetime();
1057     if(verbose_) cout << "isResonance " << p->pdg_id() << " " << ctau << endl;
1058     return ctau >0 && ctau <1e-6;
1059     }
1060    
1061     bool PVStudy::isFinalstateParticle(const HepMC::GenParticle * p){
1062     return ( !p->end_vertex() && p->status()==1 );
1063     }
1064    
1065     bool PVStudy::isCharged(const HepMC::GenParticle * p){
1066     const ParticleData * part = pdt->particle( p->pdg_id() );
1067     if (part){
1068     return part->charge()!=0;
1069     }else{
1070     // the new/improved particle table doesn't know anti-particles
1071     return pdt->particle( -p->pdg_id() )!=0;
1072     }
1073     }
1074    
1075     void PVStudy::printSimVtxs(const Handle<SimVertexContainer> simVtxs){
1076     int i=0;
1077     for(SimVertexContainer::const_iterator vsim=simVtxs->begin();
1078     vsim!=simVtxs->end(); ++vsim){
1079     cout << i++ << ")" << scientific
1080     << " evtid=" << vsim->eventId().event()
1081     << " sim x=" << vsim->position().x()
1082     << " sim y=" << vsim->position().y()
1083     << " sim z=" << vsim->position().z()
1084     << " sim t=" << vsim->position().t()
1085     << " parent=" << vsim->parentIndex()
1086     << endl;
1087     }
1088     }
1089    
1090     void PVStudy::printRecVtxs(const Handle<reco::VertexCollection> recVtxs){
1091     int ivtx=0;
1092     for(reco::VertexCollection::const_iterator v=recVtxs->begin();
1093     v!=recVtxs->end(); ++v){
1094     cout << "Recvtx "<< std::setw(3) << std::setfill(' ')<<ivtx++
1095     << "#trk " << std::setw(3) << v->tracksSize()
1096     << " chi2 " << std::setw(4) << v->chi2()
1097     << " ndof " << std::setw(3) << v->ndof() << endl
1098     << " x " << std::setw(8) <<std::fixed << std::setprecision(4) << v->x()
1099     << " dx " << std::setw(8) << v->xError()<< endl
1100     << " y " << std::setw(8) << v->y()
1101     << " dy " << std::setw(8) << v->yError()<< endl
1102     << " z " << std::setw(8) << v->z()
1103     << " dz " << std::setw(8) << v->zError()
1104     << endl;
1105     }
1106     }
1107    
1108     void PVStudy::printSimTrks(const Handle<SimTrackContainer> simTrks){
1109     cout << " simTrks type, (momentum), vertIndex, genpartIndex" << endl;
1110     int i=1;
1111     for(SimTrackContainer::const_iterator t=simTrks->begin();
1112     t!=simTrks->end(); ++t){
1113     //HepMC::GenParticle* gp=evtMC->GetEvent()->particle( (*t).genpartIndex() );
1114     cout << i++ << ")"
1115     << (*t)
1116     << " index="
1117     << (*t).genpartIndex();
1118     //if (gp) {
1119     // HepMC::GenVertex *gv=gp->production_vertex();
1120     // cout << " genvertex =" << (*gv);
1121     //}
1122     cout << endl;
1123     }
1124     }
1125    
1126 yygao 1.7 void PVStudy::fillHisto(res r, error er, int ntk, int datamode){
1127 jengbou 1.3 stringstream ss;
1128     ss << ntk;
1129     string suffix = ss.str();
1130 yygao 1.7 if(datamode == 0 ) suffix = "_" + suffix;
1131     if(datamode == 1 ) suffix = "_spl1_mct_" + suffix;
1132     if(datamode == 2 ) suffix = "_spl2_mct_" + suffix;
1133     if(datamode == 3 ) suffix = "_mct_" + suffix;
1134    
1135 jengbou 1.3 if (ntk < nTrkMin_ || ntk > nTrkMax_ ) return;
1136     // Fill histograms of res and pull of ntk
1137 jengbou 1.13 h_others->Fill1d("deltax"+suffix, r.x());
1138     h_others->Fill1d("deltay"+suffix, r.y());
1139     h_others->Fill1d("deltaz"+suffix, r.z());
1140     h_others->Fill1d("pullx"+suffix, r.x()/er.x());
1141     h_others->Fill1d("pully"+suffix, r.y()/er.y());
1142     h_others->Fill1d("pullz"+suffix, r.z()/er.z());
1143     h_others->Fill1d("errPVx"+suffix, er.x());
1144     h_others->Fill1d("errPVy"+suffix, er.y());
1145     h_others->Fill1d("errPVz"+suffix, er.z());
1146 jengbou 1.3 }
1147    
1148 yygao 1.7 PVStudy::PVAnaInfo PVStudy::GetPVAnaInfo(int ntk, int datamode) {
1149 jengbou 1.1 map<int,double> data;
1150 jengbou 1.2 data.clear();
1151 jengbou 1.4 double fpar[2] = {-999,-999};
1152 jengbou 1.1 double cm2um = 10000;
1153     stringstream ss;
1154     ss << ntk;
1155 yygao 1.7 string suffix = ss.str();
1156     if(datamode == 0 ) suffix = "_" + suffix;
1157     if(datamode == 1 ) suffix = "_spl1_mct_" + suffix;
1158     if(datamode == 2 ) suffix = "_spl2_mct_" + suffix;
1159     if(datamode == 3 ) suffix = "_mct_" + suffix;
1160    
1161 jengbou 1.3 if(analyze_) {
1162     for ( int i = 0; i < 6; ++i) {
1163     switch (i) {
1164     case 0:
1165 jengbou 1.13 if (!h_others->ReadHisto1D("deltax"+suffix)) break;
1166     fit(h_others->ReadHisto1D("deltax"+suffix), fpar);
1167 jengbou 1.3 data[i] = fpar[0]*cm2um;
1168     break;
1169     case 1:
1170 jengbou 1.13 if (!h_others->ReadHisto1D("deltay"+suffix)) break;
1171     fit(h_others->ReadHisto1D("deltay"+suffix), fpar);
1172 jengbou 1.3 data[i] = fpar[0]*cm2um;
1173     break;
1174     case 2:
1175 jengbou 1.13 if (!h_others->ReadHisto1D("deltaz"+suffix)) break;
1176     fit(h_others->ReadHisto1D("deltaz"+suffix), fpar);
1177 jengbou 1.3 data[i] = fpar[0]*cm2um;
1178     break;
1179     case 3:
1180 jengbou 1.13 if (!h_others->ReadHisto1D("pullx"+suffix)) break;
1181     fit(h_others->ReadHisto1D("pullx"+suffix), fpar);
1182 jengbou 1.3 data[i] = fpar[0];
1183     break;
1184     case 4:
1185 jengbou 1.13 if (!h_others->ReadHisto1D("pully"+suffix)) break;
1186     fit(h_others->ReadHisto1D("pully"+suffix), fpar);
1187 jengbou 1.3 data[i] = fpar[0];
1188     break;
1189     case 5:
1190 jengbou 1.13 if (!h_others->ReadHisto1D("pullz"+suffix)) break;
1191     fit(h_others->ReadHisto1D("pullz"+suffix), fpar);
1192 jengbou 1.3 data[i] = fpar[0];
1193     break;
1194 jengbou 1.1 }
1195 jengbou 1.3 if (verbose_ && data[i] > 0) cout << "data[" << i << "] = " << data[i] << (i<3?" micro m":" ") << endl;
1196 jengbou 1.1 }
1197 jengbou 1.3 }
1198     else
1199     for ( int i = 0; i < 6; ++i) {
1200     data[i] = -999;
1201 jengbou 1.1 }
1202    
1203 jengbou 1.3 return PVStudy::PVAnaInfo(res(data[0], data[1], data[2]),
1204     error(0.,0.,0.),
1205     pull(data[3], data[4], data[5]),
1206     error(0.,0.,0.),
1207 jengbou 1.1 ntk);
1208     }
1209    
1210 jengbou 1.13 void PVStudy::fit(TH1 *hdist, double fitPars[]){
1211 jengbou 1.3 TAxis *axis0 = hdist->GetXaxis();
1212     int nbin = axis0->GetLast();
1213     double nOF = hdist->GetBinContent(nbin+1);
1214     double nUF = hdist->GetBinContent(0);
1215 jengbou 1.4 // double fitRange = axis0->GetBinUpEdge(nbin);
1216     double fitRange = axis0->GetXmax();
1217 jengbou 1.5 double sigMax[2] = {0.,0.};
1218 jengbou 1.4
1219 jengbou 1.3 if ( verbose_ ){
1220     cout << "Last bin = " << nbin;
1221     cout << "; hdist: Overflow Entries = " << nOF;
1222     cout << "; Underflow Entries = " << nUF;
1223 jengbou 1.4 cout << "; hdist->GetEntries() = " << hdist->GetEntries();
1224     cout << "; fitting range = " << -fitRange << " to " << fitRange << endl;
1225 jengbou 1.3 }
1226 jengbou 1.4 if (hdist->GetEntries() - nOF - nUF >= 10) { // FIXME: for reasonable Gaussian fit
1227     for (int bi = 0; bi < nbin; bi++) {
1228     if ( (axis0->GetBinLowEdge(bi) < 0) && (hdist->GetBinContent(bi) > 0) ) {
1229     sigMax[0] = axis0->GetBinLowEdge(bi);
1230 jengbou 1.5 if ( abs(sigMax[0]) > abs(sigMax[1]) ) sigMax[1] = abs(sigMax[0]);
1231 jengbou 1.4 }
1232     if ( (axis0->GetBinLowEdge(bi) >= 0) && (hdist->GetBinContent(bi) > 0) ) {
1233 jengbou 1.5 sigMax[0] = axis0->GetBinUpEdge(bi);
1234     if ( abs(sigMax[0]) > abs(sigMax[1]) ) sigMax[1] = abs(sigMax[0]);
1235 jengbou 1.4 }
1236     }
1237 jengbou 1.5 if (verbose_) cout << "Fit sigMax = " << sqrt(2.)*sigMax[1] << endl;
1238 jengbou 1.4
1239     TF1 *fgaus = new TF1("fgaus","gaus",-fitRange, fitRange);
1240     fgaus->SetParameter(1, 0.);
1241     fgaus->SetParLimits(1, -fitRange/40., fitRange/40.);
1242 jengbou 1.5 fgaus->SetParLimits(2, 0., sqrt(2.)*sigMax[1]);
1243 jengbou 1.4 fgaus->SetLineColor(4);
1244     hdist->Fit(fgaus,"Q");
1245     gPad->Update();
1246     TPaveStats *s = (TPaveStats*) hdist->GetListOfFunctions()->FindObject("stats");
1247     s->SetOptStat(1111111);
1248     s->SetOptFit(0111);
1249     gPad->Update();
1250 jengbou 1.3 if (verbose_) cout << "got function" << endl;
1251 jengbou 1.4 fitPars[0] = ((fgaus->GetParameter(2))?fgaus->GetParameter(2):-999);
1252 jengbou 1.3 }
1253 jengbou 1.4 else
1254     fitPars[0] = -999;
1255 jengbou 1.3 }
1256    
1257 yygao 1.9 void PVStudy::fillTrackHisto(const reco::TrackCollection *trackColl, int datatype) {
1258     string suffix;
1259     suffix = ""; // for unsplit tracks
1260     if(datatype == 1) suffix = "1_spl"; // for splittracks 1
1261     if(datatype == 2) suffix = "2_spl"; // for splittracks 2
1262    
1263 jengbou 1.13 h_pvtrk->Fill1d("nTrk"+suffix, trackColl->size());
1264 yygao 1.9 for(reco::TrackCollection::const_iterator itTrack = trackColl->begin();
1265     itTrack != trackColl->end();
1266     ++itTrack) {
1267 jengbou 1.13 h_pvtrk->Fill1d("trkPt"+suffix, itTrack->pt());
1268     h_pvtrk->Fill1d("trkDxy"+suffix, itTrack->dxy());
1269     h_pvtrk->Fill1d("trkDz"+suffix, itTrack->dz());
1270     h_pvtrk->Fill1d("trkEta"+suffix, itTrack->eta());
1271     h_pvtrk->Fill1d("trkPhi"+suffix, itTrack->phi());
1272 yygao 1.9 }
1273     }
1274    
1275     void PVStudy::fillTrackHistoInPV(const reco::VertexCollection *vertexColl, int datatype, bool fillHisto, bool fillNtuple) {
1276     string suffix;
1277     suffix = ""; // for unsplit tracks
1278     if(datatype == 1) suffix = "1_spl"; // for splittracks 1
1279     if(datatype == 2) suffix = "2_spl"; // for splittracks 2
1280     int ivtx = 0;
1281     for(reco::VertexCollection::const_iterator v=vertexColl->begin();
1282     v!=vertexColl->end(); ++v, ++ivtx) {
1283     if(fillNtuple) {
1284     if(datatype == 0) {
1285 yygao 1.10 nTrkPV_[ivtx] = v->tracksSize();
1286     sumptsq_[ivtx] = sumPtSquared(*v);
1287     isValid_[ivtx] = v->isValid();
1288     isFake_[ivtx] = v->isFake();
1289 yygao 1.9 recx_[ivtx] = v->x();
1290     recy_[ivtx] = v->y();
1291     recz_[ivtx] = v->z();
1292     recx_err_[ivtx] = v->xError();
1293     recy_err_[ivtx] = v->yError();
1294     recz_err_[ivtx] = v->zError();
1295     }
1296     if(datatype == 1) {
1297 yygao 1.10 nTrkPV1_spl_[ivtx] = v->tracksSize();
1298     sumptsq1_spl_[ivtx] = sumPtSquared(*v);
1299     isValid1_spl_[ivtx] = v->isValid();
1300     isFake1_spl_[ivtx] = v->isFake();
1301 yygao 1.9 recx1_spl_[ivtx] = v->x();
1302     recy1_spl_[ivtx] = v->y();
1303     recz1_spl_[ivtx] = v->z();
1304     recx1_err_spl_[ivtx] = v->xError();
1305     recy1_err_spl_[ivtx] = v->yError();
1306     recz1_err_spl_[ivtx] = v->zError();
1307 yygao 1.10
1308 yygao 1.9 }
1309     if(datatype == 2) {
1310 yygao 1.10 nTrkPV2_spl_[ivtx] = v->tracksSize();
1311     sumptsq2_spl_[ivtx] = sumPtSquared(*v);
1312     isValid2_spl_[ivtx] = v->isValid();
1313     isFake2_spl_[ivtx] = v->isFake();
1314 yygao 1.9 recx2_spl_[ivtx] = v->x();
1315     recy2_spl_[ivtx] = v->y();
1316     recz2_spl_[ivtx] = v->z();
1317     recx2_err_spl_[ivtx] = v->xError();
1318     recy2_err_spl_[ivtx] = v->yError();
1319     recz2_err_spl_[ivtx] = v->zError();
1320     }
1321 yygao 1.11 if(datatype == 4) { // for pixelVertices
1322     nTrkPV_pxlpvtx_[ivtx] = v->tracksSize();
1323     sumptsq_pxlpvtx_[ivtx] = sumPtSquared(*v);
1324     isValid_pxlpvtx_[ivtx] = v->isValid();
1325     isFake_pxlpvtx_[ivtx] = v->isFake();
1326     recx_pxlpvtx_[ivtx] = v->x();
1327     recy_pxlpvtx_[ivtx] = v->y();
1328     recz_pxlpvtx_[ivtx] = v->z();
1329     recx_err_pxlpvtx_[ivtx] = v->xError();
1330     recy_err_pxlpvtx_[ivtx] = v->yError();
1331     recz_err_pxlpvtx_[ivtx] = v->zError();
1332     }
1333 yygao 1.9 }
1334 yygao 1.10 }
1335     // For histogram only fill the leading pvtx parameters
1336     if(fillHisto) {
1337 jengbou 1.13 h_pvtrk->Fill1d("nTrkPV"+suffix, vertexColl->begin()->tracksSize());
1338 yygao 1.10 try {
1339     for(reco::Vertex::trackRef_iterator t = vertexColl->begin()->tracks_begin();
1340     t!=vertexColl->begin()->tracks_end(); t++) {
1341     // illegal charge
1342     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
1343 jengbou 1.13 // h_pvtrk->Fill1d("trkPtPV", 0.);
1344 yygao 1.10 }
1345     else {
1346 jengbou 1.13 h_pvtrk->Fill1d("trkPtPV"+suffix, (**t).pt());
1347     h_pvtrk->Fill1d("trkDxyPV"+suffix, (**t).dxy());
1348     h_pvtrk->Fill1d("trkDzPV"+suffix, (**t).dz());
1349     h_pvtrk->Fill1d("trkEtaPV"+suffix, (**t).eta());
1350     h_pvtrk->Fill1d("trkPhiPV"+suffix, (**t).phi());
1351 yygao 1.9 }
1352     }
1353 yygao 1.10 }
1354     catch (...) {
1355     // exception thrown when trying to use linked track
1356 jengbou 1.13 // h_pvtrk->Fill1d("trkPtPV", 0.);
1357 yygao 1.9 }
1358     }
1359 yygao 1.10
1360 yygao 1.9 }
1361    
1362     void PVStudy::fillMCHisto(std::vector<simPrimaryVertex>::iterator vsim, int isimpv, const reco::VertexCollection *vtxColl, int datatype)
1363     {
1364     std::string suffix;
1365     // Set the vertexColl and histogram suffix according to datamode
1366     if (datatype == 1) {
1367     suffix = "_spl1_mct";
1368     nrecPV_spl1_mct_ = 0;
1369     }
1370     if (datatype == 2) {
1371     suffix = "_spl2_mct";
1372     nrecPV_spl2_mct_ = 0;
1373     }
1374     if (datatype == 3) {
1375     suffix = "_mct";
1376     nrecPV_mct_ = 0;
1377     }
1378    
1379     //========================================================
1380     // look for a matching reconstructed vertex in vertexColl
1381     //========================================================
1382    
1383     for(reco::VertexCollection::const_iterator vrec=vtxColl->begin();
1384     vrec!=vtxColl->end(); ++vrec){
1385     int nrectrk = vrec->tracksSize();
1386     vsim->recVtx=NULL;
1387    
1388     if(verbose_){
1389     cout << "sim primary vertex x = " << vsim->x << "; y = " << vsim->y << "; z = " << vsim->z << endl;
1390     cout << "Is matched? " << (matchVertex(*vsim,*vrec)?"Yes":"No") << endl;
1391     }
1392 yygao 1.12 if ( matchVertex(*vsim,*vrec) && vrec->isValid() && !vrec->isFake() ) {
1393 yygao 1.9 vsim->recVtx=&(*vrec);
1394    
1395     // if the matching critera are fulfilled, accept the rec-vertex that is closest in z
1396     //if( ((vsim->recVtx) && (fabs(vsim->recVtx->position().z()-vsim->z)>fabs(vrec->z()-vsim->z)))
1397     //|| (!vsim->recVtx) )
1398     //vsim->recVtx=&(*vrec);
1399     //}
1400     if(verbose_)
1401     cout <<"primary matched in vertexColl" << vsim->x << " " << vsim->y << " " << vsim->z << endl;
1402    
1403     double fres_mct[3];
1404     double ferror_mct[3];
1405    
1406     fres_mct[0] = vsim->recVtx->x()-vsim->x;
1407     fres_mct[1] = vsim->recVtx->y()-vsim->y;
1408     fres_mct[2] = vsim->recVtx->z()-vsim->z;
1409     ferror_mct[0] = vsim->recVtx->xError();
1410     ferror_mct[1] = vsim->recVtx->yError();
1411     ferror_mct[2] = vsim->recVtx->zError();
1412    
1413 jengbou 1.13 h_summary->Fill1d("deltax"+suffix, fres_mct[0] );
1414     h_summary->Fill1d("deltay"+suffix, fres_mct[1] );
1415     h_summary->Fill1d("deltaz"+suffix, fres_mct[2] );
1416     h_summary->Fill1d("pullx"+suffix, fres_mct[0]/ferror_mct[0] );
1417     h_summary->Fill1d("pully"+suffix, fres_mct[1]/ferror_mct[1] );
1418     h_summary->Fill1d("pullz"+suffix, fres_mct[2]/ferror_mct[2] );
1419     h_summary->Fill1d("errPVx"+suffix, ferror_mct[0] );
1420     h_summary->Fill1d("errPVy"+suffix, ferror_mct[1] );
1421     h_summary->Fill1d("errPVz"+suffix, ferror_mct[2] );
1422 yygao 1.9 pvinfo.push_back(PVStudy::PVInfo(res(fres_mct[0], fres_mct[1], fres_mct[2]),
1423     error(ferror_mct[0], ferror_mct[1], ferror_mct[2]),
1424     nrectrk));
1425     // Fill histo according to its track multiplicity
1426     fillHisto(res(fres_mct[0], fres_mct[1], fres_mct[2]),
1427     error(ferror_mct[0], ferror_mct[1], ferror_mct[2]),
1428     nrectrk, datatype);
1429    
1430     if(saventuple_) {
1431     //Fill the values for variables in ftree_
1432     if(datatype == 1) {
1433     nTrkPV_spl1_mct_[nrecPV_spl1_mct_] = nrectrk;
1434     deltax_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[0];
1435     deltay_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[0];
1436     deltaz_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[0];
1437     pullx_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[0]/ferror_mct[0];
1438     pully_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[1]/ferror_mct[1];
1439     pullz_spl1_mct_[nrecPV_spl1_mct_] = fres_mct[2]/ferror_mct[2];
1440     nrecPV_spl1_mct_++;
1441     }
1442    
1443     if(datatype == 2) {
1444     nTrkPV_spl2_mct_[nrecPV_spl2_mct_] = nrectrk;
1445     deltax_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[0];
1446     deltay_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[0];
1447     deltaz_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[0];
1448     pullx_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[0]/ferror_mct[0];
1449     pully_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[1]/ferror_mct[1];
1450     pullz_spl2_mct_[nrecPV_spl2_mct_] = fres_mct[2]/ferror_mct[2];
1451     nrecPV_spl2_mct_++;
1452     }
1453     if(datatype == 3) {
1454     nTrkPV_mct_[nrecPV_mct_] = nrectrk;
1455     deltax_mct_[nrecPV_mct_] = fres_mct[0];
1456     deltay_mct_[nrecPV_mct_] = fres_mct[0];
1457     deltaz_mct_[nrecPV_mct_] = fres_mct[0];
1458     pullx_mct_[nrecPV_mct_] = fres_mct[0]/ferror_mct[0];
1459     pully_mct_[nrecPV_mct_] = fres_mct[1]/ferror_mct[1];
1460     pullz_mct_[nrecPV_mct_] = fres_mct[2]/ferror_mct[2];
1461     nrecPV_mct_++;
1462     }
1463     } // End of if(saventuple_) {
1464     } // if ( matchVertex(*vsim,*vrec) ) {
1465     else { // no rec vertex found for this simvertex
1466     if(verbose_)
1467     cout <<"primary not found " << vsim->x << " " << vsim->y << " " << vsim->z << " nGenTrk=" << vsim->nGenTrk << endl;
1468     }
1469     }
1470     }
1471    
1472    
1473 yygao 1.7 void PVStudy::SetVarToZero() {
1474 yygao 1.9 //Greg's variables
1475 yygao 1.7 fntrk_ = 0;
1476     //pvtx position (x,y,z) residual and error
1477 yygao 1.9 for(int i = 0; i<3;i++) {
1478 jengbou 1.13 fres_[i] = 0;
1479     ferror_[i] = 0;
1480 yygao 1.9 }
1481    
1482     //Yanyan's variables
1483 yygao 1.10 // Number of reconstructed vertices
1484 yygao 1.9 nrecPV_ = 0;
1485     nrecPV1_spl_ = 0;
1486     nrecPV2_spl_ = 0;
1487     nrecPV_twovtx_ = 0;
1488     nsimPV_ = 0;
1489 yygao 1.10
1490 yygao 1.9 nrecPV_mct_ = 0;
1491     nrecPV_spl1_mct_ = 0;
1492     nrecPV_spl2_mct_ = 0;
1493    
1494 yygao 1.10 // Mininum separation between the secondary pvtxes and leading pvtx
1495     min_zsep_ = 9999.0;
1496     min_ntrksep_ = 9999.0;
1497     min_sumpt2sep_ = -9999.0;
1498    
1499    
1500 yygao 1.9 for (int i = 0; i < nMaxPVs_; i++) {
1501 yygao 1.10 // recoVertices with all tracks
1502     nTrkPV_[i] = 0; // Number of tracks in the pvtx
1503     sumptsq_[i] = 0;
1504     isValid_[i] = -1;
1505     isFake_[i] = -1;
1506 yygao 1.9 recx_[i] = 0;
1507     recy_[i] = 0;
1508     recz_[i] = 0;
1509     recx_err_[i] = 0;
1510     recy_err_[i] = 0;
1511     recz_err_[i] = 0;
1512 yygao 1.10
1513     // recoVertices with splitTrack1
1514     nTrkPV1_spl_[i] = 0; // Number of tracks in the pvtx
1515     sumptsq1_spl_[i] = 0;
1516     isValid1_spl_[i] = -1;
1517     isFake1_spl_[i] = -1;
1518 yygao 1.9 recx1_spl_[i] = 0;
1519     recy1_spl_[i] = 0;
1520     recz1_spl_[i] = 0;
1521     recx1_err_spl_[i] = 0;
1522     recy1_err_spl_[i] = 0;
1523     recz1_err_spl_[i] = 0;
1524    
1525 yygao 1.10 // recoVertices with splitTrack2
1526     nTrkPV2_spl_[i] = 0; // Number of tracks in the pvtx
1527     sumptsq2_spl_[i] = 0;
1528     isValid2_spl_[i] = -1;
1529     isFake2_spl_[i] = -1;
1530 yygao 1.9 recx2_spl_[i] = 0;
1531     recy2_spl_[i] = 0;
1532     recz2_spl_[i] = 0;
1533     recx2_err_spl_[i] = 0;
1534     recy2_err_spl_[i] = 0;
1535     recz2_err_spl_[i] = 0;
1536    
1537 yygao 1.11 //pixelVertices
1538     nTrkPV_pxlpvtx_[i] = 0; // Number of tracks in the pvtx
1539     sumptsq_pxlpvtx_[i] = 0;
1540     isValid_pxlpvtx_[i] = -1;
1541     isFake_pxlpvtx_[i] = -1;
1542     recx_pxlpvtx_[i] = 0;
1543     recy_pxlpvtx_[i] = 0;
1544     recz_pxlpvtx_[i] = 0;
1545     recx_err_pxlpvtx_[i] = 0;
1546     recy_err_pxlpvtx_[i] = 0;
1547     recz_err_pxlpvtx_[i] = 0;
1548    
1549 yygao 1.10 // matched two-vertices
1550 yygao 1.9 nTrkPV1_spl_twovtx_[i] = 0;
1551     nTrkPV2_spl_twovtx_[i] = 0;
1552     nTrkPV_twovtx_[i] = 0;
1553     sumptsq1_spl_twovtx_[i] = 0; // Sum of pT squred in the pvtx
1554     sumptsq2_spl_twovtx_[i] = 0; // Sum of pT squred in the pvtx
1555     deltax_twovtx_[i] = 0;
1556     deltay_twovtx_[i] = 0;
1557     deltaz_twovtx_[i] = 0;
1558     errx_twovtx_[i] = 0;
1559     erry_twovtx_[i] = 0;
1560     errz_twovtx_[i] = 0;
1561     pullx_twovtx_[i] = 0;
1562     pully_twovtx_[i] = 0;
1563     pullz_twovtx_[i] = 0;
1564    
1565 yygao 1.10 //simpv
1566 yygao 1.9 nsimTrkPV_[i] = 0;
1567     simx_[i] = 0;
1568     simy_[i] = 0;
1569     simz_[i] = 0;
1570     simptsq_[i] = 0;
1571    
1572 yygao 1.10 // residual and pulls with mc truth required
1573 yygao 1.9 deltax_mct_[i] = 0;
1574     deltay_mct_[i] = 0;
1575     deltaz_mct_[i] = 0;
1576     pullx_mct_[i] = 0;
1577     pully_mct_[i] = 0;
1578     pullz_mct_[i] = 0;
1579    
1580     deltax_spl1_mct_[i] = 0;
1581     deltay_spl1_mct_[i] = 0;
1582     deltaz_spl1_mct_[i] = 0;
1583     pullx_spl1_mct_[i] = 0;
1584     pully_spl1_mct_[i] = 0;
1585     pullz_spl1_mct_[i] = 0;
1586    
1587     deltax_spl2_mct_[i] = 0;
1588     deltay_spl2_mct_[i] = 0;
1589     deltaz_spl2_mct_[i] = 0;
1590     pullx_spl2_mct_[i] = 0;
1591     pully_spl2_mct_[i] = 0;
1592     pullz_spl2_mct_[i] = 0;
1593     }
1594    
1595 yygao 1.7 }
1596    
1597 yygao 1.9 double PVStudy::sumPtSquared(const reco::Vertex & v) {
1598     double sum = 0.;
1599     double pT;
1600     for (reco::Vertex::trackRef_iterator it = v.tracks_begin(); it != v.tracks_end(); it++) {
1601     pT = (**it).pt();
1602     sum += pT*pT;
1603     }
1604     return sum;
1605     }
1606 yygao 1.10