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root/cvsroot/UserCode/Jeng/PVStudy/plugins/PVStudy.cc
Revision: 1.8
Committed: Fri Oct 16 00:11:30 2009 UTC (15 years, 7 months ago) by jengbou
Content type: text/plain
Branch: MAIN
CVS Tags: V00-00-00
Changes since 1.7: +35 -31 lines
Log Message:
bug fix for crashing when saventuple = False

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 yygao 1.7 // "Yanyan Gao/Fermilab ygao@fnal.gov"
16 jengbou 1.1 // Created: Thu Aug 20 11:55:40 CDT 2009
17 jengbou 1.8 // $Id: PVStudy.cc,v 1.7 2009/10/08 14:57:46 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    
29     // user include files
30     #include "FWCore/Framework/interface/Frameworkfwd.h"
31     #include "FWCore/Framework/interface/EDAnalyzer.h"
32    
33     #include "FWCore/Framework/interface/Event.h"
34     #include "FWCore/Framework/interface/MakerMacros.h"
35    
36     #include "FWCore/ParameterSet/interface/ParameterSet.h"
37     #include "FWCore/Utilities/interface/InputTag.h"
38     #include "DataFormats/TrackReco/interface/Track.h"
39     #include "DataFormats/TrackReco/interface/TrackFwd.h"
40     #include "FWCore/ServiceRegistry/interface/Service.h"
41     #include "PhysicsTools/UtilAlgos/interface/TFileService.h"
42     #include "UserCode/PVStudy/interface/PVStudy.h"
43     //
44     #include "DataFormats/VertexReco/interface/Vertex.h"
45     #include "RecoVertex/VertexPrimitives/interface/TransientVertex.h"
46    
47     // simulated vertices,..., add <use name=SimDataFormats/Vertex> and <../Track>
48     #include <SimDataFormats/Vertex/interface/SimVertex.h>
49     #include <SimDataFormats/Vertex/interface/SimVertexContainer.h>
50     #include <SimDataFormats/Track/interface/SimTrack.h>
51     #include <SimDataFormats/Track/interface/SimTrackContainer.h>
52    
53     //root
54 jengbou 1.4 #include <TROOT.h>
55     #include <TF1.h>
56     #include <TString.h>
57     #include <TStyle.h>
58     #include <TPaveStats.h>
59     #include <TPad.h>
60 jengbou 1.1
61     using namespace std;
62    
63 yygao 1.7 PVStudy::PVStudy(const edm::ParameterSet& iConfig)
64 jengbou 1.1 {
65 yygao 1.7 //=======================================================================
66     // Get configuration for TrackTupleMaker
67     //=======================================================================
68 jengbou 1.8 simG4_ = iConfig.getParameter<edm::InputTag>( "simG4" );
69     trackCollectionTag_ = iConfig.getUntrackedParameter<edm::InputTag>("trackCollection");
70     splitTrackCollection1Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitTrackCollection1");
71     splitTrackCollection2Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitTrackCollection2");
72 yygao 1.7 vertexCollectionTag_ = iConfig.getUntrackedParameter<edm::InputTag>("vertexCollection");
73 jengbou 1.8 splitVertexCollection1Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitVertexCollection1");
74     splitVertexCollection2Tag_ = iConfig.getUntrackedParameter<edm::InputTag>("splitVertexCollection2");
75     verbose_ = iConfig.getUntrackedParameter<bool>("verbose",false);
76     realData_ = iConfig.getUntrackedParameter<bool>("realData",false);
77     analyze_ = iConfig.getUntrackedParameter<bool>("analyzeOnTheFly",false);
78     saventuple_ = iConfig.getUntrackedParameter<bool>("saventuple",false);
79     outputfilename_ = iConfig.getUntrackedParameter<string>("OutputFileName");
80     ntrkdiffcut_ = iConfig.getUntrackedParameter<double>("ntrkdiffcut");
81     nTrkMin_ = iConfig.getUntrackedParameter<int>("nTrkMin");
82     nTrkMax_ = iConfig.getUntrackedParameter<int>("nTrkMax");
83 jengbou 1.1
84     //now do what ever initialization is needed
85 jengbou 1.3 pvinfo.clear();
86 jengbou 1.1
87 yygao 1.7
88     // Specify the data mode vector
89     if(realData_) datamode.push_back(0);
90     else {
91     datamode.push_back(0);
92     datamode.push_back(1);
93     datamode.push_back(2);
94     datamode.push_back(3);
95     }
96    
97     // Create ntuple files if needed
98     if(saventuple_) {
99     file_ = TFile::Open(outputfilename_.c_str(),"RECREATE");
100     ftree_ = new TTree("mytree","mytree");
101     ftree_->AutoSave();
102     ftree_->Branch("residual",&fres_,"fres_[3]/D");
103     ftree_->Branch("error",&ferror_,"ferror_[3]/D");
104     ftree_->Branch("nTrkPV",&fntrk_,"fntrk_/I");
105     ftree_->Branch("nrecPV",&nrecPV_,"nrecPV_/I");
106     ftree_->Branch("nrecPV1_spl",&nrecPV1_spl_,"nrecPV1_spl_/I");
107     ftree_->Branch("nrecPV2_spl",&nrecPV2_spl_,"nrecPV2_spl_/I");
108 jengbou 1.3
109 yygao 1.7 // If it is MC, get the resA, resB
110     if(!realData_) {
111     ftree_->Branch("residual_spl1_mct",&fres_spl1_mct_,"fres_spl1_mct_[3]/D");
112     ftree_->Branch("error_spl1_mct",&ferror_spl1_mct_,"ferror_spl1_mct_[3]/D");
113     ftree_->Branch("nTrkPV_spl1_mct",&fntrk_spl1_mct_,"fntrk_spl1_mct_/I");
114     ftree_->Branch("residual_spl2_mct",&fres_spl2_mct_,"fres_spl2_mct_[3]/D");
115     ftree_->Branch("error_spl2_mct",&ferror_spl2_mct_,"ferror_spl2_mct_[3]/D");
116     ftree_->Branch("nTrkPV_spl2_mct",&fntrk_spl2_mct_,"fntrk_spl2_mct_/I");
117     ftree_->Branch("residual_mct",&fres_mct_,"fres_mct_[3]/D");
118     ftree_->Branch("error_mct",&ferror_mct_,"ferror_mct_[3]/D");
119     ftree_->Branch("nTrkPV_mct",&fntrk_mct_,"fntrk_mct_/I");
120     }
121     }
122    
123 jengbou 1.1 edm::Service<TFileService> fs;
124 jengbou 1.4 TFileDirectory subDir = fs->mkdir( "Summary" );
125     TFileDirectory subDir1 = fs->mkdir( "Others" );
126     // TFileDirectory subSubDir = subDir.mkdir( "mySubSubDirectory" );
127    
128     setRootStyle();
129 yygao 1.7
130     //Book histograms for track and pvtx parameters for each splitted pvtx
131     //i=0 : x (as in unsplit track collection)
132     //i=1 : x1_spl_
133     //i=2 : x2_spl_
134    
135     for(int i=0;i<3;i++)
136     {
137     string suffix;
138     if(i == 0) suffix = "";
139     else {
140     stringstream ss;
141     ss << i;
142     suffix =ss.str()+"_spl";
143     }
144     h["nTrk"+suffix] = subDir.make<TH1D>(TString("nTrk"+suffix), TString("Num of rec tracks"+suffix),300,0,300);
145     h["trkPt"+suffix] = subDir.make<TH1D>(TString("trkPt"+suffix), TString("Pt of rec tracks "+suffix),100,0,100);
146     h["trkEta"+suffix] = subDir.make<TH1D>(TString("trkEta"+suffix), TString("#Eta of rec tracks "+suffix),100,-3,3);
147     h["trkPhi"+suffix] = subDir.make<TH1D>(TString("trkPhi"+suffix), TString("#Phi of rec tracks "+suffix),100,-3.2,3.2);
148     h["trkDxy"+suffix] = subDir.make<TH1D>(TString("trkDxy"+suffix), TString("Dxy of rec tracks "+suffix),100,-5,5);
149     h["trkDz"+suffix] = subDir.make<TH1D>(TString("trkDz"+suffix), TString("Dz of rec tracks "+suffix),100,-50,50);
150    
151     h["nTrkPV"+suffix] = subDir.make<TH1D>(TString("nTrkPV"+suffix), TString("Num of rec tracks in PV"+suffix),300,0,300);
152     h["trkPtPV"+suffix] = subDir.make<TH1D>(TString("trkPtPV"+suffix), TString("Pt of rec tracks in "+suffix),100,0,100);
153     h["trkEtaPV"+suffix] = subDir.make<TH1D>(TString("trkEtaPV"+suffix), TString("#Eta of rec tracks in PV"+suffix),100,-3,3);
154     h["trkPhiPV"+suffix] = subDir.make<TH1D>(TString("trkPhiPV"+suffix), TString("#Phi of rec tracks in PV"+suffix),100,-3.2,3.2);
155     h["trkDxyPV"+suffix] = subDir.make<TH1D>(TString("trkDxyPV"+suffix), TString("Dxy of rec tracks in PV"+suffix),100,-5,5);
156     h["trkDzPV"+suffix] = subDir.make<TH1D>(TString("trkDzPV"+suffix), TString("Dz of rec tracks "+suffix),100,-50,50);
157     h["nrecPV"+suffix] = subDir.make<TH1D>(TString("nrecPV"+suffix), TString("Num of rec pvtx"+suffix),50,0,50);
158     suffix.clear();
159     }
160     h["nrecPVDiff"] = subDir.make<TH1D>("nrecPVDiff","nrecPV1-nRecPV2",21,-10.5,10.5);
161     h["nTrkPVDiff"] = subDir.make<TH1D>("nTrkPVDiff","nTrkPV1-nTrkPV2",41,-20.5,20.5);
162     h["nTrkPVRelDiff"] = subDir.make<TH1D>("nTrkPVRelDiff","(nTrkPV1-nTrkPV2)/(nTrkPV1+nTrkPV2)",100,-1,1);
163    
164     //Book histograms sensitive to data/mc
165     for (vector<int>::const_iterator it= datamode.begin(); it != datamode.end() ; ++it) {
166     string suffix;
167     if(verbose_) cout<<"datamode = "<< *it<<endl;
168     switch(*it) {
169     case 0: suffix = "";
170     break;
171     case 1: suffix = "_spl1_mct";
172     break;
173     case 2: suffix = "_spl2_mct";
174     break;
175     case 3: suffix = "_mct";
176     break;
177 jengbou 1.2 }
178 yygao 1.7 h["deltax"+suffix] = subDir.make<TH1D>(TString("deltax"+suffix), TString("x-residual pvtx"+suffix),800,-0.04,0.04);
179     h["deltay"+suffix] = subDir.make<TH1D>(TString("deltay"+suffix), TString("y-residual pvtx"+suffix),800,-0.04,0.04);
180     h["deltaz"+suffix] = subDir.make<TH1D>(TString("deltaz"+suffix), TString("z-residual pvtx"+suffix),800,-0.04,0.04);
181     h["pullx"+suffix] = subDir.make<TH1D>(TString("pullx"+suffix), TString("x-pull pvtx"+suffix),800,-10,10);
182     h["pully"+suffix] = subDir.make<TH1D>(TString("pully"+suffix), TString("y-pull pvtx"+suffix),800,-10,10);
183     h["pullz"+suffix] = subDir.make<TH1D>(TString("pullz"+suffix), TString("z-pull pvtx"+suffix),800,-10,10);
184     h["errPVx"+suffix] = subDir.make<TH1D>(TString("errPVx"+suffix), TString("X"+suffix+" vertex error"),100,0.,0.02);
185     h["errPVy"+suffix] = subDir.make<TH1D>(TString("errPVy"+suffix), TString("Y"+suffix+" vertex error"),100,0.,0.02);
186     h["errPVz"+suffix] = subDir.make<TH1D>(TString("errPVz"+suffix), TString("Z"+suffix+" vertex error"),100,0.,0.02);
187    
188     // Book residual, error and pull histograms for each nTrk bin
189 jengbou 1.1 for (int ntrk=nTrkMin_;ntrk<=nTrkMax_;++ntrk) {
190     stringstream ss;
191     ss << ntrk;
192 yygao 1.7 string suffix2 = suffix+"_"+ss.str();
193     h["deltax"+suffix2] = subDir1.make<TH1D>(TString("deltax"+suffix2), TString("x-residual of pvtx"+suffix),100,-0.02,0.02);
194     h["deltax"+suffix2]->GetXaxis()->SetTitle("cm");
195     h["deltay"+suffix2] = subDir1.make<TH1D>(TString("deltay"+suffix2), TString("y-residual of pvtx"+suffix),100,-0.02,0.02);
196     h["deltay"+suffix2]->GetXaxis()->SetTitle("cm");
197     h["deltaz"+suffix2] = subDir1.make<TH1D>(TString("deltaz"+suffix2), TString("z-residual of pvtx"+suffix),100,-0.02,0.02);
198     h["deltaz"+suffix2]->GetXaxis()->SetTitle("cm");
199     h["pullx"+suffix2] = subDir1.make<TH1D>(TString("pullx"+suffix2), TString("x-pull of pvtx"+suffix),100,-10.,10.);
200     h["pully"+suffix2] = subDir1.make<TH1D>(TString("pully"+suffix2), TString("y-pull of pvtx"+suffix),100,-10.,10.);
201     h["pullz"+suffix2] = subDir1.make<TH1D>(TString("pullz"+suffix2), TString("z-pull of pvtx"+suffix),100,-10.,10.);
202     h["errPVx"+suffix2] = subDir1.make<TH1D>(TString("errPVx"+suffix2), TString("X"+suffix+" vertex error"),100,0.,0.02);
203     h["errPVy"+suffix2] = subDir1.make<TH1D>(TString("errPVy"+suffix2), TString("Y"+suffix+" vertex error"),100,0.,0.02);
204     h["errPVz"+suffix2] = subDir1.make<TH1D>(TString("errPVz"+suffix2), TString("Z"+suffix+" vertex error"),100,0.,0.02);
205     suffix2.clear();
206     } // End of for (int ntrk=nTrkMin_;ntrk<=nTrkMax_;++ntrk) {
207    
208     // Book residual and pull histograms only when analyzeOntheFly is enabled
209     if(analyze_) {
210     h2["resx"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("resx"+suffix+"_nTrk"), TString("x-resolution vs number of tracks in pvtx"+suffix),150,0,150,400,0.,200);
211     h2["resx"+suffix+"_nTrk"]->SetMarkerStyle(21);
212     h2["resx"+suffix+"_nTrk"]->SetMarkerColor(4);
213     h2["resx"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
214     h2["resx"+suffix+"_nTrk"]->GetYaxis()->SetTitle("#mum");
215     h2["resy"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("resy"+suffix+"_nTrk"), TString("y-resolution vs number of tracks in pvtx"+suffix),150,0,150,400,0.,200);
216     h2["resy"+suffix+"_nTrk"]->SetMarkerStyle(21);
217     h2["resy"+suffix+"_nTrk"]->SetMarkerColor(4);
218     h2["resy"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
219     h2["resy"+suffix+"_nTrk"]->GetYaxis()->SetTitle("#mum");
220     h2["resz"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("resz"+suffix+"_nTrk"), TString("z-resolution vs number of tracks in pvtx"+suffix),150,0,150,400,0.,200);
221     h2["resz"+suffix+"_nTrk"]->SetMarkerStyle(21);
222     h2["resz"+suffix+"_nTrk"]->SetMarkerColor(4);
223     h2["resz"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
224     h2["resz"+suffix+"_nTrk"]->GetYaxis()->SetTitle("#mum");
225     h2["pullx"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("pullx"+suffix+"_nTrk"), TString("x-pull vs number of tracks"+suffix),150,0,150,100,0.,2.);
226     h2["pullx"+suffix+"_nTrk"]->SetMarkerStyle(21);
227     h2["pullx"+suffix+"_nTrk"]->SetMarkerColor(4);
228     h2["pullx"+suffix+"_nTrk"]->SetBit(TH1::kCanRebin);
229     h2["pullx"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
230     h2["pully"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("pully"+suffix+"_nTrk"), TString("y-pull vs number of tracks"+suffix),150,0,150,100,0.,2.);
231     h2["pully"+suffix+"_nTrk"]->SetMarkerStyle(21);
232     h2["pully"+suffix+"_nTrk"]->SetMarkerColor(4);
233     h2["pully"+suffix+"_nTrk"]->SetBit(TH1::kCanRebin);
234     h2["pully"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
235     h2["pullz"+suffix+"_nTrk"]= subDir.make<TH2D>(TString("pullz"+suffix+"_nTrk"), TString("x-pull vs number of tracks"+suffix),150,0,150,100,0.,2.);
236     h2["pullz"+suffix+"_nTrk"]->SetMarkerStyle(21);
237     h2["pullz"+suffix+"_nTrk"]->SetMarkerColor(4);
238     h2["pullz"+suffix+"_nTrk"]->SetBit(TH1::kCanRebin);
239     h2["pullz"+suffix+"_nTrk"]->GetXaxis()->SetTitle("Num of tracks");
240     } // End of if(analyze_) {
241     suffix.clear();
242     } // End of Book histograms sensitive to data/mc
243     // Book MC only plots
244     if (!realData_) {
245     h["genPart_T"] = subDir.make<TH1D>("genPart_T","t component of gen particles",300,-0.5,0.5);
246     h["genPart_T"]->GetXaxis()->SetTitle("t (nanosecond)");
247     h["genPart_cT"] = subDir.make<TH1D>("genPart_cT","ct component of gen particles",300,-150.,150.);
248     h["genPart_cT"]->GetXaxis()->SetTitle("ct (mm)");
249     h["nsimPV"] = subDir.make<TH1D>("nsimPV","Num of sim PV",51,-0.5,50.5);
250 jengbou 1.1 }
251     }
252    
253     PVStudy::~PVStudy()
254     {
255    
256     // do anything here that needs to be done at desctruction time
257     // (e.g. close files, deallocate resources etc.)
258    
259     }
260    
261 jengbou 1.4 void PVStudy::setRootStyle() {
262     //
263     gROOT->SetStyle("Plain");
264     gStyle->SetFillColor(1);
265     gStyle->SetOptDate();
266     // gStyle->SetOptStat(1111110);
267     // gStyle->SetOptFit(0111);
268     // gStyle->SetPadTickX(1);
269     // gStyle->SetPadTickY(1);
270     gStyle->SetMarkerSize(0.5);
271     gStyle->SetMarkerStyle(8);
272     gStyle->SetGridStyle(3);
273     //gStyle->SetPadGridX(1);
274     //gStyle->SetPadGridY(1);
275     gStyle->SetPaperSize(TStyle::kA4);
276     gStyle->SetStatW(0.25); // width of statistics box; default is 0.19
277     // gStyle->SetStatH(0.10); // height of statistics box; default is 0.1
278     gStyle->SetStatFormat("6.4g"); // leave default format for now
279     gStyle->SetTitleSize(0.055, ""); // size for pad title; default is 0.02
280     gStyle->SetLabelSize(0.03, "XYZ"); // size for axis labels; default is 0.04
281     gStyle->SetStatFontSize(0.08); // size for stat. box
282     gStyle->SetTitleFont(32, "XYZ"); // times-bold-italic font (p. 153) for axes
283     gStyle->SetTitleFont(32, ""); // same for pad title
284     gStyle->SetLabelFont(32, "XYZ"); // same for axis labels
285     gStyle->SetStatFont(32); // same for stat. box
286     gStyle->SetLabelOffset(0.006, "Y"); // default is 0.005
287     //
288     return;
289     }
290 jengbou 1.1 //
291     // member functions
292     //
293     std::vector<PVStudy::simPrimaryVertex> PVStudy::getSimPVs(const Handle<HepMCProduct> evtMC, std::string suffix="")
294     {
295     std::vector<PVStudy::simPrimaryVertex> simpv;
296     const HepMC::GenEvent* evt=evtMC->GetEvent();
297     if (evt) {
298     if(verbose_) {
299     cout << "process id " << evt->signal_process_id()<<endl;
300     cout << "signal process vertex " << ( evt->signal_process_vertex() ?
301     evt->signal_process_vertex()->barcode() : 0 ) <<endl;
302     cout << "number of vertices " << evt->vertices_size() << endl;
303     }
304    
305 jengbou 1.6 int idx=0; int npv=0;
306 jengbou 1.1 for(HepMC::GenEvent::vertex_const_iterator vitr= evt->vertices_begin();
307 jengbou 1.6 vitr != evt->vertices_end(); ++vitr ) { // loop for vertex ...
308     HepMC::FourVector pos = (*vitr)->position();
309     //HepLorentzVector pos = (*vitr)->position();
310    
311     // t component of PV:
312     for ( HepMC::GenVertex::particle_iterator mother = (*vitr)->particles_begin(HepMC::parents);
313     mother != (*vitr)->particles_end(HepMC::parents); ++mother ) {
314     // std::cout << "Status = " << (*mother)->status() << std::endl;
315     HepMC::GenVertex * mv=(*mother)->production_vertex();
316     if( ((*mother)->status() == 3) && (!mv)) {
317     // std::cout << "npv= " << npv << std::endl;
318     if (npv == 0) {
319     h["genPart_cT"]->Fill(pos.t()); // mm
320     h["genPart_T"]->Fill(pos.t()/299.792458); // ns
321     }
322     npv++;
323     }
324     }
325     // if (pos.t()>0) { continue;} // for 22X when t of PV was not smeared
326 jengbou 1.1
327 jengbou 1.6 bool hasMotherVertex=false;
328     if(verbose_) cout << "mothers of vertex[" << ++idx << "]: " << endl;
329     for ( HepMC::GenVertex::particle_iterator mother = (*vitr)->particles_begin(HepMC::parents);
330     mother != (*vitr)->particles_end(HepMC::parents); ++mother ) {
331     HepMC::GenVertex * mv=(*mother)->production_vertex();
332     // std::cout << "Status = " << (*mother)->status() << std::endl;
333     if (mv) {
334     hasMotherVertex=true;
335     if(!verbose_) break; //if verbose_, print all particles of gen vertices
336     }
337     if(verbose_) {
338     cout << "\t";
339     (*mother)->print();
340     }
341     }
342    
343     if(hasMotherVertex) continue;
344    
345     // could be a new vertex, check all primaries found so far to avoid multiple entries
346     const double mm2cm=0.1;
347     simPrimaryVertex sv(pos.x()*mm2cm,pos.y()*mm2cm,pos.z()*mm2cm); // sim unit mm, rec unit cm
348     simPrimaryVertex *vp=NULL; // will become non-NULL if a vertex is found and then point to it
349     for(vector<simPrimaryVertex>::iterator v0=simpv.begin();
350     v0!=simpv.end(); v0++){
351     if( (fabs(sv.x-v0->x)<1e-5) && (fabs(sv.y-v0->y)<1e-5) && (fabs(sv.z-v0->z)<1e-5)){
352     vp=&(*v0);
353     break;
354 jengbou 1.1 }
355 jengbou 1.6 }
356 jengbou 1.1
357 jengbou 1.6 if(!vp){
358     // this is a new vertex
359     if(verbose_) cout << "this is a new vertex " << sv.x << " " << sv.y << " " << sv.z << endl;
360     simpv.push_back(sv);
361     vp=&simpv.back();
362     }else{
363     if(verbose_) cout << "this is not a new vertex " << sv.x << " " << sv.y << " " << sv.z << endl;
364     }
365     vp->genVertex.push_back((*vitr)->barcode());
366     // collect final state descendants
367     for ( HepMC::GenVertex::particle_iterator daughter = (*vitr)->particles_begin(HepMC::descendants);
368     daughter != (*vitr)->particles_end(HepMC::descendants);
369     ++daughter ) {
370     if (isFinalstateParticle(*daughter)){
371     if ( find(vp->finalstateParticles.begin(), vp->finalstateParticles.end(),(*daughter)->barcode())
372     == vp->finalstateParticles.end()){
373     vp->finalstateParticles.push_back((*daughter)->barcode());
374     HepMC::FourVector m=(*daughter)->momentum();
375     // the next four lines used to be "vp->ptot+=m;" in the days of CLHEP::HepLorentzVector
376     // but adding FourVectors seems not to be foreseen
377     vp->ptot.setPx(vp->ptot.px()+m.px());
378     vp->ptot.setPy(vp->ptot.py()+m.py());
379     vp->ptot.setPz(vp->ptot.pz()+m.pz());
380     vp->ptot.setE(vp->ptot.e()+m.e());
381     vp->ptsq+=(m.perp())*(m.perp());
382     if ( (m.perp()>0.8) && (fabs(m.pseudoRapidity())<2.5) && isCharged( *daughter ) ){
383     vp->nGenTrk++;
384 jengbou 1.1 }
385     }
386     }
387     }
388 jengbou 1.6 }
389 jengbou 1.1 }
390     return simpv;
391     }
392    
393     std::vector<PVStudy::simPrimaryVertex> PVStudy::getSimPVs(const Handle<HepMCProduct> evtMC,
394     const Handle<SimVertexContainer> simVtxs,
395     const Handle<SimTrackContainer> simTrks)
396     {
397     // simvertices don't have enough information to decide,
398     // genVertices don't have the simulated coordinates ( with VtxSmeared they might)
399     // go through simtracks to get the link between simulated and generated vertices
400     std::vector<PVStudy::simPrimaryVertex> simpv;
401     int idx=0;
402     for(SimTrackContainer::const_iterator t=simTrks->begin();
403     t!=simTrks->end(); ++t){
404     if ( !(t->noVertex()) && !(t->type()==-99) ){
405     double ptsq=0;
406     bool primary=false; // something coming directly from the primary vertex
407     bool resonance=false; // resonance
408     bool track=false; // undecayed, charged particle
409     HepMC::GenParticle* gp=evtMC->GetEvent()->barcode_to_particle( (*t).genpartIndex() );
410     if (gp) {
411     HepMC::GenVertex * gv=gp->production_vertex();
412     if (gv) {
413     for ( HepMC::GenVertex::particle_iterator
414     daughter = gv->particles_begin(HepMC::descendants);
415     daughter != gv->particles_end(HepMC::descendants);
416     ++daughter ) {
417     if (isFinalstateParticle(*daughter)){
418     ptsq+=(*daughter)->momentum().perp()*(*daughter)->momentum().perp();
419     }
420     }
421     primary = ( gv->position().t()==0);
422     //resonance= ( gp->mother() && isResonance(gp->mother())); // in CLHEP/HepMC days
423     // no more mother pointer in the improved HepMC GenParticle
424     resonance= ( isResonance(*(gp->production_vertex()->particles_in_const_begin())));
425     if (gp->status()==1){
426     //track=((pdt->particle(gp->pdg_id()))->charge() != 0);
427     track=not isCharged(gp);
428     }
429     }
430     }
431    
432     const HepMC::FourVector & v=(*simVtxs)[t->vertIndex()].position();
433     //const HepLorentzVector & v=(*simVtxs)[t->vertIndex()].position();
434     if(primary or resonance){
435     {
436     // check all primaries found so far to avoid multiple entries
437     bool newVertex=true;
438     for(std::vector<PVStudy::simPrimaryVertex>::iterator v0=simpv.begin();
439     v0!=simpv.end(); v0++){
440     if( (fabs(v0->x-v.x())<0.001) && (fabs(v0->y-v.y())<0.001) && (fabs(v0->z-v.z())<0.001) ){
441     if (track) {
442     v0->simTrackIndex.push_back(idx);
443     if (ptsq>(*v0).ptsq){(*v0).ptsq=ptsq;}
444     }
445     newVertex=false;
446     }
447     }
448     if(newVertex && !resonance){
449     PVStudy::simPrimaryVertex anotherVertex(v.x(),v.y(),v.z());
450     if (track) anotherVertex.simTrackIndex.push_back(idx);
451     anotherVertex.ptsq=ptsq;
452     simpv.push_back(anotherVertex);
453     }
454     }//
455     }
456    
457     }// simtrack has vertex and valid type
458     idx++;
459     }//simTrack loop
460     return simpv;
461     }
462    
463     // ------------ method called to for each event ------------
464     void
465     PVStudy::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
466     {
467     using namespace edm;
468 yygao 1.7 using namespace reco;
469    
470     if (verbose_)
471     cout<<"PVStudy::analyze():"<<endl;
472     //=======================================================
473     // Initialize Root-tuple variables if needed
474     //=======================================================
475 jengbou 1.8 //if(saventuple_)
476 yygao 1.7 SetVarToZero();
477    
478     //=======================================================
479     // Track accessors
480     //=======================================================
481     //trackCollection
482     static const reco::TrackCollection s_empty_trackColl;
483     const reco::TrackCollection *trackColl = &s_empty_trackColl;
484     edm::Handle<reco::TrackCollection> trackCollectionHandle;
485     iEvent.getByLabel(trackCollectionTag_, trackCollectionHandle);
486     if( iEvent.getByLabel(trackCollectionTag_, trackCollectionHandle)) {
487     trackColl = trackCollectionHandle.product();
488     } else {
489     cout << "trackCollection cannot be found -> using empty collection of same type." <<endl;
490     }
491     //splitTrackCollection1
492     static const reco::TrackCollection s_empty_splitTrackColl1;
493     const reco::TrackCollection *splitTrackColl1 = &s_empty_splitTrackColl1;
494     edm::Handle<reco::TrackCollection> splitTrackCollection1Handle;
495     iEvent.getByLabel(splitTrackCollection1Tag_, splitTrackCollection1Handle);
496     if( iEvent.getByLabel(splitTrackCollection1Tag_, splitTrackCollection1Handle)) {
497     splitTrackColl1 = splitTrackCollection1Handle.product();
498     } else {
499     cout << "splitTrackCollection1 cannot be found -> using empty collection of same type." <<endl;
500     }
501     //splitTrackCollection2
502     static const reco::TrackCollection s_empty_splitTrackColl2;
503     const reco::TrackCollection *splitTrackColl2 = &s_empty_splitTrackColl2;
504     edm::Handle<reco::TrackCollection> splitTrackCollection2Handle;
505     iEvent.getByLabel(splitTrackCollection2Tag_, splitTrackCollection2Handle);
506     if( iEvent.getByLabel(splitTrackCollection2Tag_, splitTrackCollection2Handle)) {
507     splitTrackColl2 = splitTrackCollection2Handle.product();
508     } else {
509     cout << "splitTrackCollection2 cannot be found -> using empty collection of same type." <<endl;
510     }
511    
512     //=======================================================
513     // PVTX accessors
514     //=======================================================
515     //vertexCollection
516     static const reco::VertexCollection s_empty_vertexColl;
517     const reco::VertexCollection *vertexColl = &s_empty_vertexColl;
518     edm::Handle<reco::VertexCollection> vertexCollectionHandle;
519     iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle);
520     if( iEvent.getByLabel(vertexCollectionTag_, vertexCollectionHandle)) {
521     vertexColl = vertexCollectionHandle.product();
522     } else {
523     cout << "vertexCollection cannot be found -> using empty collection of same type." <<endl;
524     }
525     //splitVertexCollection1
526     static const reco::VertexCollection s_empty_splitVertexColl1;
527     const reco::VertexCollection *splitVertexColl1 = &s_empty_splitVertexColl1;
528     edm::Handle<reco::VertexCollection> splitVertexCollection1Handle;
529     iEvent.getByLabel(splitVertexCollection1Tag_, splitVertexCollection1Handle);
530     if( iEvent.getByLabel(splitVertexCollection1Tag_, splitVertexCollection1Handle)) {
531     splitVertexColl1 = splitVertexCollection1Handle.product();
532     } else {
533     cout << "splitVertexCollection1 cannot be found -> using empty collection of same type." <<endl;
534     }
535     //splitVertexCollection2
536     static const reco::VertexCollection s_empty_splitVertexColl2;
537     const reco::VertexCollection *splitVertexColl2 = &s_empty_splitVertexColl2;
538     edm::Handle<reco::VertexCollection> splitVertexCollection2Handle;
539     iEvent.getByLabel(splitVertexCollection2Tag_, splitVertexCollection2Handle);
540     if( iEvent.getByLabel(splitVertexCollection2Tag_, splitVertexCollection2Handle)) {
541     splitVertexColl2 = splitVertexCollection2Handle.product();
542     } else {
543     cout << "splitVertexCollection2 cannot be found -> using empty collection of same type." <<endl;
544     }
545 jengbou 1.1
546 yygao 1.7 if(verbose_) cout<<"Done accessing the track and vertex collections"<<endl;
547    
548     //=======================================================
549     // MC simvtx accessor
550     //=======================================================
551 jengbou 1.1 if (!realData_) {
552 yygao 1.7 edm::Handle<SimVertexContainer> simVtxs;
553 jengbou 1.1 iEvent.getByLabel( simG4_, simVtxs);
554    
555 yygao 1.7 edm::Handle<SimTrackContainer> simTrks;
556 jengbou 1.1 iEvent.getByLabel( simG4_, simTrks);
557     }
558    
559 yygao 1.7 //=======================================================
560     // GET PDT
561     //=======================================================
562 jengbou 1.1 try{
563     iSetup.getData(pdt);
564     }catch(const Exception&){
565     cout << "Some problem occurred with the particle data table. This may not work !." <<endl;
566     }
567    
568 yygao 1.7 //=======================================================
569     // Fill trackparameters of the input tracks to pvtx fitter
570     //=======================================================
571    
572     // GeneralTracks
573     h["nTrk"]->Fill(trackColl->size());
574     for(TrackCollection::const_iterator itTrack = trackColl->begin();
575     itTrack != trackColl->end();
576     ++itTrack) {
577     h["trkPt"]->Fill(itTrack->pt());
578     h["trkDxy"]->Fill(itTrack->dxy());
579     h["trkDz"]->Fill(itTrack->dz());
580     h["trkEta"]->Fill(itTrack->eta());
581     h["trkPhi"]->Fill(itTrack->phi());
582     }
583    
584     //SplittedTracks1
585     h["nTrk1_spl"]->Fill(splitTrackColl1->size());
586     for(TrackCollection::const_iterator itTrack = splitTrackColl1->begin();
587     itTrack != splitTrackColl1->end();
588     ++itTrack) {
589     h["trkPt1_spl"]->Fill(itTrack->pt());
590     h["trkDxy1_spl"]->Fill(itTrack->dxy());
591     h["trkDz1_spl"]->Fill(itTrack->dz());
592     h["trkEta1_spl"]->Fill(itTrack->eta());
593     h["trkPhi1_spl"]->Fill(itTrack->phi());
594     }
595     //SplittedTracks2
596     h["nTrk2_spl"]->Fill(splitTrackColl2->size());
597     for(TrackCollection::const_iterator itTrack = splitTrackColl2->begin();
598     itTrack != splitTrackColl2->end();
599     ++itTrack) {
600     h["trkPt2_spl"]->Fill(itTrack->pt());
601     h["trkDxy2_spl"]->Fill(itTrack->dxy());
602     h["trkDz2_spl"]->Fill(itTrack->dz());
603     h["trkEta2_spl"]->Fill(itTrack->eta());
604     h["trkPhi2_spl"]->Fill(itTrack->phi());
605     }
606    
607     if(verbose_)
608     cout<<"Done filling track parameters of the input tracks to pvtx fitter."<<endl;
609    
610     //=======================================================
611     // Fill reconstructed vertices
612     //=======================================================
613     if(verbose_) {
614     cout<<"PVStudy::analyze() Printing vertexCollection: "<<endl;
615     printRecVtxs(vertexCollectionHandle);
616     cout<<"PVStudy::analyze() Printing splitVertexCollection1: "<<endl;
617     printRecVtxs(splitVertexCollection1Handle);
618     cout<<"PVStudy::analyze() Printing splitVertexCollection2: "<<endl;
619     printRecVtxs(splitVertexCollection2Handle);
620     }
621    
622     //Fill the tree variables
623     nrecPV_ = vertexColl->size();
624     nrecPV1_spl_ = splitVertexColl1->size();
625     nrecPV2_spl_ = splitVertexColl2->size();
626 jengbou 1.8
627     h["nrecPV"]->Fill(nrecPV_);
628     h["nrecPV1_spl"]->Fill(nrecPV1_spl_);
629     h["nrecPV2_spl"]->Fill(nrecPV2_spl_);
630     h["nrecPVDiff"]->Fill(double(nrecPV1_spl_)-double(nrecPV2_spl_));
631 yygao 1.7
632     // Fill the track paramters for the vertexColl
633     for(reco::VertexCollection::const_iterator v=vertexColl->begin();
634 jengbou 1.8 v!=vertexColl->end(); ++v){
635     h["nTrkPV"]->Fill(v->tracksSize());
636 yygao 1.7 try {
637     for(reco::Vertex::trackRef_iterator t = v->tracks_begin();
638     t!=v->tracks_end(); t++) {
639     // illegal charge
640     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
641     // h["trkPtPV"]->Fill(0.);
642     }
643     else {
644     h["trkPtPV"]->Fill((**t).pt());
645     h["trkDxyPV"]->Fill((**t).dxy());
646     h["trkDzPV"]->Fill((**t).dz());
647     h["trkEtaPV"]->Fill((**t).eta());
648     h["trkPhiPV"]->Fill((**t).phi());
649     }
650     }
651     }
652     catch (...) {
653     // exception thrown when trying to use linked track
654     // h["trkPtPV"]->Fill(0.);
655     }
656     }
657    
658    
659     // == ignore multi-vertices (for now)
660     //take single pvt collection and compare
661     if(splitVertexColl1->size() == 1 && splitVertexColl2->size() == 1 ) {
662     const reco::Vertex recvtx1 = *(splitVertexColl1->begin());
663     const reco::Vertex recvtx2 = *(splitVertexColl2->begin());
664     if (matchVertex(recvtx1, recvtx2)) {
665     int nTrkPV1 = recvtx1.tracksSize();
666     int nTrkPV2 = recvtx2.tracksSize();
667     h["nTrkPV1_spl"]->Fill(nTrkPV1);
668     h["nTrkPV2_spl"]->Fill(nTrkPV2);
669     double ntrkreldiff = double(nTrkPV1-nTrkPV2)/double(nTrkPV1+nTrkPV2);
670     h["nTrkPVDiff"]->Fill(nTrkPV1-nTrkPV2);
671     h["nTrkPVRelDiff"]->Fill(ntrkreldiff);
672    
673     // Fill the track paramters for the splitVertexColl1
674     try {
675     for(reco::Vertex::trackRef_iterator t = recvtx1.tracks_begin();
676     t!=recvtx1.tracks_end(); t++) {
677     // illegal charge
678     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
679     // h["trkPtPV"]->Fill(0.);
680     }
681     else {
682     h["trkPtPV1_spl"]->Fill((**t).pt());
683     h["trkDxyPV1_spl"]->Fill((**t).dxy());
684     h["trkDzPV1_spl"]->Fill((**t).dz());
685     h["trkEtaPV1_spl"]->Fill((**t).eta());
686     h["trkPhiPV1_spl"]->Fill((**t).phi());
687     }
688     }
689     }
690     catch (...) {
691     // exception thrown when trying to use linked track
692     // h["trkPtPV"]->Fill(0.);
693     }
694    
695     // Fill the track paramters for the splitVertexColl2
696     try {
697     for(reco::Vertex::trackRef_iterator t = recvtx2.tracks_begin();
698     t!=recvtx2.tracks_end(); t++) {
699     // illegal charge
700     if ( (**t).charge() < -1 || (**t).charge() > 1 ) {
701     // h["trkPtPV"]->Fill(0.);
702     }
703     else {
704     h["trkPtPV2_spl"]->Fill((**t).pt());
705     h["trkDxyPV2_spl"]->Fill((**t).dxy());
706     h["trkDzPV2_spl"]->Fill((**t).dz());
707     h["trkEtaPV2_spl"]->Fill((**t).eta());
708     h["trkPhiPV2_spl"]->Fill((**t).phi());
709     }
710     }
711     }
712     catch (...) {
713     // exception thrown when trying to use linked track
714     // h["trkPtPV"]->Fill(0.);
715     }
716    
717     if(verbose_)
718     cout<<"Done filling track parameters in reconstruced vertices."<<endl;
719    
720     if(fabs(ntrkreldiff)<ntrkdiffcut_) {
721     fres_[0] = (recvtx1.x()-recvtx2.x())/sqrt(2.0);
722     fres_[1] = (recvtx1.y()-recvtx2.y())/sqrt(2.0);
723     fres_[2] = (recvtx1.z()-recvtx2.z())/sqrt(2.0);
724     ferror_[0] = sqrt(pow(recvtx1.xError(),2)+pow(recvtx2.xError(),2))/sqrt(2);
725     ferror_[1] = sqrt(pow(recvtx1.yError(),2)+pow(recvtx2.yError(),2))/sqrt(2);
726     ferror_[2] = sqrt(pow(recvtx1.zError(),2)+pow(recvtx2.zError(),2))/sqrt(2);
727     fntrk_ = (nTrkPV1+nTrkPV2)/2;
728    
729     h["deltax"]->Fill( fres_[0] );
730     h["deltay"]->Fill( fres_[1] );
731     h["deltaz"]->Fill( fres_[2] );
732     h["pullx"]->Fill( fres_[0]/ferror_[0]);
733     h["pully"]->Fill( fres_[1]/ferror_[1]);
734     h["pullz"]->Fill( fres_[2]/ferror_[2]);
735     h["errPVx"]->Fill( ferror_[0] );
736     h["errPVy"]->Fill( ferror_[1] );
737     h["errPVz"]->Fill( ferror_[2] );
738     pvinfo.push_back(PVStudy::PVInfo(res(fres_[0], fres_[1], fres_[2]),
739     error(ferror_[0], ferror_[1], ferror_[2]),
740     fntrk_));
741     // Fill histo according to its track multiplicity, set datamode = 0
742     fillHisto(res(fres_[0], fres_[1], fres_[2]),
743     error(ferror_[0], ferror_[1], ferror_[2]),
744     fntrk_,0);
745    
746 jengbou 1.8 if (saventuple_) ftree_->Fill();
747 yygao 1.7 } // End of if(fabs(ntrkreldiff)<ntrkdiffcut_) {
748     } // End of if (matchVertex(recvtx1, recvtx2)) {
749     else {
750     cout<<"WARNING: The two reconstructed vertices do not match in z: "<<endl;
751     cout<<"recvtx1.z() = " << recvtx1.z() <<"; recvtx2.z() = " << recvtx2.z() <<endl;
752     }
753     } // End of fill histograms for two-vertices Method
754    
755     if(verbose_)
756     cout<<"Done filling res/pull with two-vertices method"<<endl;
757    
758     //=======================================================
759     // Fill simulated vertices
760     //=======================================================
761 jengbou 1.1 if (!realData_) {
762     bool MC=false;
763     Handle<HepMCProduct> evtMC;
764     iEvent.getByLabel("generator",evtMC);
765     if (!evtMC.isValid()) {
766     MC=false;
767     if(verbose_){
768     cout << "no HepMCProduct found"<< endl;
769     }
770     } else {
771     if(verbose_){
772     cout << "generator HepMCProduct found"<< endl;
773     }
774     MC=true;
775     }
776 yygao 1.7
777 jengbou 1.1 if(MC){
778     // make a list of primary vertices:
779     std::vector<simPrimaryVertex> simpv;
780     simpv=getSimPVs(evtMC,"");
781     // simpv=getSimPVs(evtMC, simVtxs, simTrks);
782 yygao 1.7 h["nsimPV"]->Fill(simpv.size());
783 jengbou 1.1 int nsimtrk=0;
784     int nrectrk=0;
785 yygao 1.7
786 jengbou 1.1 for(std::vector<simPrimaryVertex>::iterator vsim=simpv.begin();
787     vsim!=simpv.end(); vsim++){
788     nsimtrk+=vsim->nGenTrk;
789 yygao 1.7 // Loop over the datamodes, for MC, fill only 1, 2, 3
790     for (int i=1;i<=3;i++) {
791     static const reco::VertexCollection s_empty_vtxColl;
792     const reco::VertexCollection *vtxColl = &s_empty_vtxColl;
793     std::string suffix;
794     // Set the vertexColl and histogram suffix according to datamode
795     if (i == 1) {
796     vtxColl = splitVertexColl1;
797     suffix = "_spl1_mct";
798     }
799     if (i == 2) {
800     vtxColl = splitVertexColl2;
801     suffix = "_spl2_mct";
802     }
803     if (i == 3) {
804     vtxColl = vertexColl;
805     suffix = "_mct";
806     }
807     //========================================================
808     // look for a matching reconstructed vertex in vertexColl
809     //========================================================
810     vsim->recVtx=NULL;
811     for(reco::VertexCollection::const_iterator vrec=vtxColl->begin();
812     vrec!=vtxColl->end(); ++vrec){
813     nrectrk=vrec->tracksSize();
814     if(verbose_){
815     cout << "sim primary vertex x = " << vsim->x << "; y = " << vsim->y << "; z = " << vsim->z << endl;
816     cout << "Is matched? " << (matchVertex(*vsim,*vrec)?"Yes":"No") << endl;
817     }
818     if ( matchVertex(*vsim,*vrec) ){
819     // if the matching critera are fulfilled, accept the rec-vertex that is closest in z
820     if( ((vsim->recVtx) && (fabs(vsim->recVtx->position().z()-vsim->z)>fabs(vrec->z()-vsim->z)))
821     || (!vsim->recVtx) )
822 jengbou 1.1 vsim->recVtx=&(*vrec);
823 yygao 1.7 }// End of finding the matched reco_vertex
824    
825     if (vsim->recVtx){
826     if(verbose_) {
827     cout <<"primary matched in vertexColl" << vsim->x << " " << vsim->y << " " << vsim->z << endl;
828     }
829     double fres_mct[3];
830     double ferror_mct[3];
831     int fntrk_mct;
832    
833     fres_mct[0] = vsim->recVtx->x()-vsim->x;
834     fres_mct[1] = vsim->recVtx->y()-vsim->y;
835     fres_mct[2] = vsim->recVtx->z()-vsim->z;
836     ferror_mct[0] = vsim->recVtx->xError();
837     ferror_mct[1] = vsim->recVtx->yError();
838     ferror_mct[2] = vsim->recVtx->zError();
839     fntrk_mct = nrectrk;
840    
841     //Fill the values for variables in ftree_
842     if(i == 1) {
843     for(int j = 0;j<3;j++)
844     fres_spl1_mct_[j] = fres_mct[j];
845     fntrk_spl1_mct_ = fntrk_mct;
846 jengbou 1.1 }
847 yygao 1.7 if(i == 2) {
848     for(int j = 0;j<3;j++)
849     fres_spl2_mct_[j] = fres_mct[j];
850     fntrk_spl2_mct_ = fntrk_mct;
851     }
852     if(i == 3) {
853     for(int j=0;j<3;j++)
854     fres_mct_[j] = fres_mct[j];
855     fntrk_mct_ = fntrk_mct;
856     }
857    
858     h["deltax"+suffix]->Fill( fres_mct[0] );
859     h["deltay"+suffix]->Fill( fres_mct[1] );
860     h["deltaz"+suffix]->Fill( fres_mct[2] );
861     h["pullx"+suffix]->Fill( fres_mct[0]/ferror_mct[0] );
862     h["pully"+suffix]->Fill( fres_mct[1]/ferror_mct[1] );
863     h["pullz"+suffix]->Fill( fres_mct[2]/ferror_mct[2] );
864     h["errPVx"+suffix]->Fill( ferror_mct[0] );
865     h["errPVy"+suffix]->Fill( ferror_mct[1] );
866     h["errPVz"+suffix]->Fill( ferror_mct[2] );
867     pvinfo.push_back(PVStudy::PVInfo(res(fres_mct[0], fres_mct[1], fres_mct[2]),
868     error(ferror_mct[0], ferror_mct[1], ferror_mct[2]),
869     fntrk_mct));
870     // Fill histo according to its track multiplicity
871     fillHisto(res(fres_mct[0], fres_mct[1], fres_mct[2]),
872     error(ferror_mct[0], ferror_mct[1], ferror_mct[2]),
873     fntrk_mct, i);
874 jengbou 1.8 if (saventuple_) ftree_->Fill();
875 yygao 1.7 suffix.clear();
876     }
877     else { // no rec vertex found for this simvertex
878     if(verbose_)
879     cout <<"primary not found " << vsim->x << " " << vsim->y << " " << vsim->z << " nGenTrk=" << vsim->nGenTrk << endl;
880     }
881 jengbou 1.1 }
882 yygao 1.7 } // === End of Looping through vertexColl
883     }
884     } // End of for(std::vector<simPrimaryVertex>::iterator vsim=simpv.begin()
885     } // End of Filling MC variables
886 jengbou 1.1 }
887    
888     // ------------ method called once each job just before starting event loop ------------
889     void
890     PVStudy::beginJob()
891     {
892     }
893    
894     // ------------ method called once each job just after ending the event loop ------------
895     void
896     PVStudy::endJob() {
897 yygao 1.7 if (verbose_) cout << "Analyzing PV info" << endl;
898     // Looping through the datamodes available
899     for (vector<int>::const_iterator it= datamode.begin(); it != datamode.end() ; ++it) {
900     string suffix;
901     if(verbose_) cout<<"datamode = "<< *it<<endl;
902     switch(*it) {
903     case 0: suffix = "";
904     break;
905     case 1: suffix = "_spl1_mct";
906     break;
907     case 2: suffix = "_spl2_mct";
908     break;
909     case 3: suffix = "_mct";
910     break;
911     }
912 jengbou 1.8 if (analyze_) {
913     for (int ntrk=nTrkMin_;ntrk<=nTrkMax_;++ntrk) {
914     PVStudy::PVAnaInfo ipv = GetPVAnaInfo(ntrk,*it);
915     if (verbose_) cout << "Fill point of ntrk = " << ntrk << endl;
916 yygao 1.7 if ( ipv.res_.x() > 0 ) h2["resx"+suffix+"_nTrk"]->Fill(ntrk,ipv.res_.x(), 1.);
917     if ( ipv.res_.y() > 0 ) h2["resy"+suffix+"_nTrk"]->Fill(ntrk,ipv.res_.y(), 1.);
918     if ( ipv.res_.z() > 0 ) h2["resz"+suffix+"_nTrk"]->Fill(ntrk,ipv.res_.z(), 1.);
919     if ( ipv.pull_.x() > 0 ) h2["pullx"+suffix+"_nTrk"]->Fill(ntrk,ipv.pull_.x(), 1.);
920     if ( ipv.pull_.y() > 0 ) h2["pully"+suffix+"_nTrk"]->Fill(ntrk,ipv.pull_.y(), 1.);
921     if ( ipv.pull_.z() > 0 ) h2["pullz"+suffix+"_nTrk"]->Fill(ntrk,ipv.pull_.z(), 1.);
922 jengbou 1.2 }
923 jengbou 1.8 }
924 yygao 1.7 suffix.clear();
925 jengbou 1.1 }
926 jengbou 1.8 if(saventuple_) {
927     file_->cd();
928     ftree_->Write();
929     file_->Close();
930     }
931 jengbou 1.1 }
932    
933 yygao 1.7
934    
935     // Match a recovertex with a simvertex
936     // ? Should the cut be parameter dependent?
937     // cut can be within n sigma of the vertex.zerror()
938 jengbou 1.1 bool PVStudy::matchVertex(const PVStudy::simPrimaryVertex & vsim,
939     const reco::Vertex & vrec)
940     {
941     return (fabs(vsim.z-vrec.z())<0.0500); // =500um
942     }
943    
944 yygao 1.7 // Match two reconstructed vertices
945     bool PVStudy::matchVertex( const reco::Vertex & vrec1,
946     const reco::Vertex & vrec2)
947     {
948     return (fabs(vrec1.z()-vrec2.z())<0.0500); // =500um
949     }
950    
951    
952 jengbou 1.1 bool PVStudy::isResonance(const HepMC::GenParticle * p){
953     double ctau=(pdt->particle( abs(p->pdg_id()) ))->lifetime();
954     if(verbose_) cout << "isResonance " << p->pdg_id() << " " << ctau << endl;
955     return ctau >0 && ctau <1e-6;
956     }
957    
958     bool PVStudy::isFinalstateParticle(const HepMC::GenParticle * p){
959     return ( !p->end_vertex() && p->status()==1 );
960     }
961    
962     bool PVStudy::isCharged(const HepMC::GenParticle * p){
963     const ParticleData * part = pdt->particle( p->pdg_id() );
964     if (part){
965     return part->charge()!=0;
966     }else{
967     // the new/improved particle table doesn't know anti-particles
968     return pdt->particle( -p->pdg_id() )!=0;
969     }
970     }
971    
972     void PVStudy::printSimVtxs(const Handle<SimVertexContainer> simVtxs){
973     int i=0;
974     for(SimVertexContainer::const_iterator vsim=simVtxs->begin();
975     vsim!=simVtxs->end(); ++vsim){
976     cout << i++ << ")" << scientific
977     << " evtid=" << vsim->eventId().event()
978     << " sim x=" << vsim->position().x()
979     << " sim y=" << vsim->position().y()
980     << " sim z=" << vsim->position().z()
981     << " sim t=" << vsim->position().t()
982     << " parent=" << vsim->parentIndex()
983     << endl;
984     }
985     }
986    
987     void PVStudy::printRecVtxs(const Handle<reco::VertexCollection> recVtxs){
988     int ivtx=0;
989     for(reco::VertexCollection::const_iterator v=recVtxs->begin();
990     v!=recVtxs->end(); ++v){
991     cout << "Recvtx "<< std::setw(3) << std::setfill(' ')<<ivtx++
992     << "#trk " << std::setw(3) << v->tracksSize()
993     << " chi2 " << std::setw(4) << v->chi2()
994     << " ndof " << std::setw(3) << v->ndof() << endl
995     << " x " << std::setw(8) <<std::fixed << std::setprecision(4) << v->x()
996     << " dx " << std::setw(8) << v->xError()<< endl
997     << " y " << std::setw(8) << v->y()
998     << " dy " << std::setw(8) << v->yError()<< endl
999     << " z " << std::setw(8) << v->z()
1000     << " dz " << std::setw(8) << v->zError()
1001     << endl;
1002     }
1003     }
1004    
1005     void PVStudy::printSimTrks(const Handle<SimTrackContainer> simTrks){
1006     cout << " simTrks type, (momentum), vertIndex, genpartIndex" << endl;
1007     int i=1;
1008     for(SimTrackContainer::const_iterator t=simTrks->begin();
1009     t!=simTrks->end(); ++t){
1010     //HepMC::GenParticle* gp=evtMC->GetEvent()->particle( (*t).genpartIndex() );
1011     cout << i++ << ")"
1012     << (*t)
1013     << " index="
1014     << (*t).genpartIndex();
1015     //if (gp) {
1016     // HepMC::GenVertex *gv=gp->production_vertex();
1017     // cout << " genvertex =" << (*gv);
1018     //}
1019     cout << endl;
1020     }
1021     }
1022    
1023 yygao 1.7 void PVStudy::fillHisto(res r, error er, int ntk, int datamode){
1024 jengbou 1.3 stringstream ss;
1025     ss << ntk;
1026     string suffix = ss.str();
1027 yygao 1.7 if(datamode == 0 ) suffix = "_" + suffix;
1028     if(datamode == 1 ) suffix = "_spl1_mct_" + suffix;
1029     if(datamode == 2 ) suffix = "_spl2_mct_" + suffix;
1030     if(datamode == 3 ) suffix = "_mct_" + suffix;
1031    
1032 jengbou 1.3 if (ntk < nTrkMin_ || ntk > nTrkMax_ ) return;
1033     // Fill histograms of res and pull of ntk
1034 yygao 1.7 h["deltax"+suffix]->Fill(r.x());
1035     h["deltay"+suffix]->Fill(r.y());
1036     h["deltaz"+suffix]->Fill(r.z());
1037     h["pullx"+suffix]->Fill(r.x()/er.x());
1038     h["pully"+suffix]->Fill(r.y()/er.y());
1039     h["pullz"+suffix]->Fill(r.z()/er.z());
1040     h["errPVx"+suffix]->Fill(er.x());
1041     h["errPVy"+suffix]->Fill(er.y());
1042     h["errPVz"+suffix]->Fill(er.z());
1043 jengbou 1.3 }
1044    
1045 yygao 1.7 PVStudy::PVAnaInfo PVStudy::GetPVAnaInfo(int ntk, int datamode) {
1046 jengbou 1.1 map<int,double> data;
1047 jengbou 1.2 data.clear();
1048 jengbou 1.4 double fpar[2] = {-999,-999};
1049 jengbou 1.1 double cm2um = 10000;
1050     stringstream ss;
1051     ss << ntk;
1052 yygao 1.7 string suffix = ss.str();
1053     if(datamode == 0 ) suffix = "_" + suffix;
1054     if(datamode == 1 ) suffix = "_spl1_mct_" + suffix;
1055     if(datamode == 2 ) suffix = "_spl2_mct_" + suffix;
1056     if(datamode == 3 ) suffix = "_mct_" + suffix;
1057    
1058 jengbou 1.3 if(analyze_) {
1059     for ( int i = 0; i < 6; ++i) {
1060     switch (i) {
1061     case 0:
1062 yygao 1.7 fit(h["deltax"+suffix], fpar);
1063 jengbou 1.3 data[i] = fpar[0]*cm2um;
1064     break;
1065     case 1:
1066 yygao 1.7 fit(h["deltay"+suffix], fpar);
1067 jengbou 1.3 data[i] = fpar[0]*cm2um;
1068     break;
1069     case 2:
1070 yygao 1.7 fit(h["deltaz"+suffix], fpar);
1071 jengbou 1.3 data[i] = fpar[0]*cm2um;
1072     break;
1073     case 3:
1074 yygao 1.7 fit(h["pullx"+suffix], fpar);
1075 jengbou 1.3 data[i] = fpar[0];
1076     break;
1077     case 4:
1078 yygao 1.7 fit(h["pully"+suffix], fpar);
1079 jengbou 1.3 data[i] = fpar[0];
1080     break;
1081     case 5:
1082 yygao 1.7 fit(h["pullz"+suffix], fpar);
1083 jengbou 1.3 data[i] = fpar[0];
1084     break;
1085 jengbou 1.1 }
1086 jengbou 1.3 if (verbose_ && data[i] > 0) cout << "data[" << i << "] = " << data[i] << (i<3?" micro m":" ") << endl;
1087 jengbou 1.1 }
1088 jengbou 1.3 }
1089     else
1090     for ( int i = 0; i < 6; ++i) {
1091     data[i] = -999;
1092 jengbou 1.1 }
1093    
1094 jengbou 1.3 return PVStudy::PVAnaInfo(res(data[0], data[1], data[2]),
1095     error(0.,0.,0.),
1096     pull(data[3], data[4], data[5]),
1097     error(0.,0.,0.),
1098 jengbou 1.1 ntk);
1099     }
1100    
1101 jengbou 1.4 void PVStudy::fit(TH1 *&hdist, double fitPars[]){
1102 jengbou 1.3 TAxis *axis0 = hdist->GetXaxis();
1103     int nbin = axis0->GetLast();
1104     double nOF = hdist->GetBinContent(nbin+1);
1105     double nUF = hdist->GetBinContent(0);
1106 jengbou 1.4 // double fitRange = axis0->GetBinUpEdge(nbin);
1107     double fitRange = axis0->GetXmax();
1108 jengbou 1.5 double sigMax[2] = {0.,0.};
1109 jengbou 1.4
1110 jengbou 1.3 if ( verbose_ ){
1111     cout << "Last bin = " << nbin;
1112     cout << "; hdist: Overflow Entries = " << nOF;
1113     cout << "; Underflow Entries = " << nUF;
1114 jengbou 1.4 cout << "; hdist->GetEntries() = " << hdist->GetEntries();
1115     cout << "; fitting range = " << -fitRange << " to " << fitRange << endl;
1116 jengbou 1.3 }
1117 jengbou 1.4 if (hdist->GetEntries() - nOF - nUF >= 10) { // FIXME: for reasonable Gaussian fit
1118     for (int bi = 0; bi < nbin; bi++) {
1119     if ( (axis0->GetBinLowEdge(bi) < 0) && (hdist->GetBinContent(bi) > 0) ) {
1120     sigMax[0] = axis0->GetBinLowEdge(bi);
1121 jengbou 1.5 if ( abs(sigMax[0]) > abs(sigMax[1]) ) sigMax[1] = abs(sigMax[0]);
1122 jengbou 1.4 }
1123     if ( (axis0->GetBinLowEdge(bi) >= 0) && (hdist->GetBinContent(bi) > 0) ) {
1124 jengbou 1.5 sigMax[0] = axis0->GetBinUpEdge(bi);
1125     if ( abs(sigMax[0]) > abs(sigMax[1]) ) sigMax[1] = abs(sigMax[0]);
1126 jengbou 1.4 }
1127     }
1128 jengbou 1.5 if (verbose_) cout << "Fit sigMax = " << sqrt(2.)*sigMax[1] << endl;
1129 jengbou 1.4
1130     TF1 *fgaus = new TF1("fgaus","gaus",-fitRange, fitRange);
1131     fgaus->SetParameter(1, 0.);
1132     fgaus->SetParLimits(1, -fitRange/40., fitRange/40.);
1133 jengbou 1.5 fgaus->SetParLimits(2, 0., sqrt(2.)*sigMax[1]);
1134 jengbou 1.4 fgaus->SetLineColor(4);
1135     hdist->Fit(fgaus,"Q");
1136     gPad->Update();
1137     TPaveStats *s = (TPaveStats*) hdist->GetListOfFunctions()->FindObject("stats");
1138     s->SetOptStat(1111111);
1139     s->SetOptFit(0111);
1140     gPad->Update();
1141 jengbou 1.3 if (verbose_) cout << "got function" << endl;
1142 jengbou 1.4 fitPars[0] = ((fgaus->GetParameter(2))?fgaus->GetParameter(2):-999);
1143 jengbou 1.3 }
1144 jengbou 1.4 else
1145     fitPars[0] = -999;
1146 jengbou 1.3 }
1147    
1148 yygao 1.7 void PVStudy::SetVarToZero() {
1149    
1150     // number of reconstructed vertices
1151     nrecPV_ = 0;
1152     nrecPV1_spl_ = 0;
1153     nrecPV2_spl_ = 0;
1154     // number of tracks in the vertex
1155     fntrk_ = 0;
1156     fntrk_spl1_mct_ = 0;
1157     fntrk_spl2_mct_ = 0;
1158     fntrk_mct_ = 0;
1159     //pvtx position (x,y,z) residual and error
1160     for(int i = 0; i<3;i++)
1161     {
1162     fres_[i] = 0;
1163     ferror_[i] = 0;
1164     fres_spl1_mct_[i] = 0;
1165     ferror_spl1_mct_[i] = 0;
1166     fres_spl2_mct_[i] = 0;
1167     ferror_spl2_mct_[i] = 0;
1168     fres_mct_[i] = 0;
1169     ferror_mct_[i] = 0;
1170     }
1171     }
1172    
1173