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Revision: 1.32
Committed: Tue May 7 19:41:48 2013 UTC (11 years, 11 months ago) by kiesel
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Changes since 1.31: +1 -1 lines
Error occurred while calculating annotation data.
Log Message:
fixed compiler warning comparing unsigned to signed long

File Contents

# Content
1 #include "treeWriter.h"
2
3 using namespace std;
4
5 TreeWriter::TreeWriter( std::string inputName, std::string outputName, int loggingVerbosity_ ) {
6 // read the input file
7 inputTree = new TChain("susyTree");
8 if (loggingVerbosity_ > 0)
9 std::cout << "Add files to chain" << std::endl;
10 inputTree->Add( inputName.c_str() );
11 Init( outputName, loggingVerbosity_ );
12 }
13
14 TreeWriter::TreeWriter( TChain* inputTree_, std::string outputName, int loggingVerbosity_ ) {
15 inputTree = inputTree_;
16 Init( outputName, loggingVerbosity_ );
17 }
18
19 void TreeWriter::Init( std::string outputName, int loggingVerbosity_ ) {
20
21 if (loggingVerbosity_ > 0)
22 std::cout << "Set Branch Address of susy::Event" << std::endl;
23 event = new susy::Event;
24 inputTree->SetBranchAddress("susyEvent", &event);
25
26 // Here the number of proceeded events will be stored. For plotting, simply use L*sigma/eventNumber
27 eventNumbers = new TH1F("eventNumbers", "Histogram containing number of generated events", 1, 0, 1);
28 eventNumbers->GetXaxis()->SetBinLabel(1,"Number of generated events");
29
30 // open the output file
31 if (loggingVerbosity_>0)
32 std::cout << "Open file " << outputName << " for writing." << std::endl;
33 outFile = new TFile( outputName.c_str(), "recreate" );
34 tree = new TTree("susyTree","Tree for single photon analysis");
35
36 // set default parameter
37 processNEvents = -1;
38 reportEvery = 1000;
39 loggingVerbosity = loggingVerbosity_;
40 skim = true;
41 pileupHisto = 0;
42 }
43
44 void TreeWriter::PileUpWeightFile( string pileupFileName ) {
45 TFile *puFile = new TFile( pileupFileName.c_str() );
46 pileupHisto = (TH1F*) puFile->Get("pileup");
47 }
48
49 TreeWriter::~TreeWriter() {
50 if (pileupHisto != 0 )
51 delete pileupHisto;
52 inputTree->GetCurrentFile()->Close();
53 delete inputTree;
54 delete event;
55 delete outFile;
56 delete tree;
57 }
58
59 template<class Type>
60 std::vector<Type>* getVectorFromMap( map<TString, vector<Type> > myMap, TString search ){
61 // if nothing is found, return a empty vector (which has to be deleted never the less)
62 std::vector<Type>* vec;
63 typename map<TString, vector<Type> >::iterator mapIt = myMap.find( search );
64 if( mapIt == myMap.end() ) {
65 cout << "ERROR: Collection \"" << search << "\" not found!" << endl;
66 vec = new std::vector<Type>;
67 } else
68 vec = &mapIt->second;
69 cout << vec->size() << endl;
70 return vec;
71 }
72
73 float deltaPhi( float phi1, float phi2) {
74 float result = phi1 - phi2;
75 while (result > M_PI) result -= 2*M_PI;
76 while (result <= -M_PI) result += 2*M_PI;
77 return result;
78 }
79
80 // useful functions
81 float deltaR( const TLorentzVector& v1, const TLorentzVector& v2 ) {
82 // deltaR = sqrt ( deltaEta^2 + deltaPhi^2 )
83 return sqrt(pow(v1.Eta() - v2.Eta(), 2) + pow(deltaPhi(v1.Phi(),v2.Phi()), 2) );
84 }
85
86 float effectiveAreaElectron( float eta ) {
87 // needed by calculating the isolation for electrons
88 // see https://twiki.cern.ch/twiki/bin/view/CMS/EgammaEARhoCorrection
89 // only for Delta R = 0.3 on 2012 Data
90 eta = fabs( eta );
91 float ea;
92 if( eta < 1.0 ) ea = 0.13;
93 else if( eta < 1.479 ) ea = 0.14;
94 else if( eta < 2.0 ) ea = 0.07;
95 else if( eta < 2.2 ) ea = 0.09;
96 else if( eta < 2.3 ) ea = 0.11;
97 else if( eta < 2.4 ) ea = 0.11;
98 else ea = 0.14;
99 return ea;
100 }
101
102 // correct iso, see https://twiki.cern.ch/twiki/bin/view/CMS/CutBasedPhotonID2012
103 float chargedHadronIso_corrected(const susy::Photon& gamma, float rho) {
104 float eta = fabs(gamma.caloPosition.Eta());
105 float ea;
106
107 if(eta < 1.0) ea = 0.012;
108 else if(eta < 1.479) ea = 0.010;
109 else if(eta < 2.0) ea = 0.014;
110 else if(eta < 2.2) ea = 0.012;
111 else if(eta < 2.3) ea = 0.016;
112 else if(eta < 2.4) ea = 0.020;
113 else ea = 0.012;
114
115 float iso = gamma.chargedHadronIso;
116 iso = max(iso - rho*ea, (float)0.);
117
118 return iso;
119 }
120
121 float neutralHadronIso_corrected(const susy::Photon& gamma, float rho) {
122 float eta = fabs(gamma.caloPosition.Eta());
123 float ea;
124
125 if(eta < 1.0) ea = 0.030;
126 else if(eta < 1.479) ea = 0.057;
127 else if(eta < 2.0) ea = 0.039;
128 else if(eta < 2.2) ea = 0.015;
129 else if(eta < 2.3) ea = 0.024;
130 else if(eta < 2.4) ea = 0.039;
131 else ea = 0.072;
132
133 float iso = gamma.neutralHadronIso;
134 iso = max(iso - rho*ea, (float)0.);
135
136 return iso;
137 }
138
139 float photonIso_corrected(const susy::Photon& gamma, float rho) {
140 float eta = fabs(gamma.caloPosition.Eta());
141 float ea;
142
143 if(eta < 1.0) ea = 0.148;
144 else if(eta < 1.479) ea = 0.130;
145 else if(eta < 2.0) ea = 0.112;
146 else if(eta < 2.2) ea = 0.216;
147 else if(eta < 2.3) ea = 0.262;
148 else if(eta < 2.4) ea = 0.260;
149 else ea = 0.266;
150
151 float iso = gamma.photonIso;
152 iso = max(iso - rho*ea, (float)0.);
153
154 return iso;
155 }
156
157 float d0correction( const susy::Electron& electron, const susy::Event& event ) {
158 // copied from Brian Francis
159 TVector3 beamspot = event.vertices[0].position;
160 susy::Track track = event.tracks[electron.gsfTrackIndex];
161 float d0 = track.d0() - beamspot.X()*sin(track.phi()) + beamspot.Y()*cos(track.phi());
162 return d0;
163 }
164
165 float dZcorrection( const susy::Electron& electron, const susy::Event& event ) {
166 // copied from Brian Francis
167 TVector3 beamspot = event.vertices[0].position;
168 susy::Track track = event.tracks[electron.gsfTrackIndex];
169
170 if(track.momentum.Pt() == 0.) return 1.e6;
171 float dz = (track.vertex.Z() - beamspot.Z()) - ((track.vertex.X() - beamspot.X())*track.momentum.Px() + (track.vertex.Y() - beamspot.Y())*track.momentum.Py()) / track.momentum.Pt() * (track.momentum.Pz() / track.momentum.Pt());
172 return dz;
173 }
174
175 float getPtFromMatchedJet( const susy::Photon& myPhoton, const susy::PFJetCollection& jetColl, int loggingVerbosity = 0 ) {
176 /**
177 * \brief Takes jet p_T as photon p_T
178 *
179 * At first all jets with DeltaR < 0.3 (isolation cone) are searched.
180 * If several jets are found, take the one with the minimal pt difference
181 * compared to the photon. If no such jets are found, keep the photon_pt
182 * TODO: remove photon matched jet from jet-selection?
183 */
184 std::vector<susy::PFJet> nearJets;
185 nearJets.clear();
186
187 for(std::vector<susy::PFJet>::const_iterator it = jetColl.begin();
188 it != jetColl.end(); ++it) {
189 float scale = 1.;
190 std::map<TString,Float_t>::const_iterator s_it = it->jecScaleFactors.find("L2L3");
191 if (s_it == it->jecScaleFactors.end()) {
192 std::cout << "JEC is not available for this jet!!!" << std::endl;
193 continue;
194 } else {
195 scale = s_it->second;
196 }
197 TLorentzVector corrP4 = scale * it->momentum;
198 float deltaR_ = deltaR(myPhoton.momentum, corrP4 );
199 if (deltaR_ > 0.3) continue;
200 if( loggingVerbosity > 2 )
201 std::cout << " pT_jet / pT_gamma = " << it->momentum.Et() / myPhoton.momentum.Et() << std::endl;
202 nearJets.push_back( *it );
203 }// for jet
204
205 if ( nearJets.size() == 0 ) {
206 if( loggingVerbosity > 1 )
207 std::cout << "No jet with deltaR < .3 found, do not change photon_pt" << std::endl;
208 return myPhoton.momentum.Et();
209 }
210
211 float pt = 0;
212 float minPtDifferenz = 1E20; // should be very high
213 for( std::vector<susy::PFJet>::iterator it = nearJets.begin(), jetEnd = nearJets.end();
214 it != jetEnd; ++it ) {
215 float ptDiff = fabs(myPhoton.momentum.Et() - it->momentum.Et());
216 if ( ptDiff < minPtDifferenz ) {
217 minPtDifferenz = ptDiff;
218 pt = it->momentum.Et();
219 }
220 }
221
222 // testing
223 if( nearJets.size() > 1 && loggingVerbosity > 0 )
224 std::cout << "There are several jets matching to this photon. "
225 << "Please check if jet-matching is correct." << std::endl;
226 return pt;
227 }
228
229
230 void TreeWriter::Loop() {
231 /**
232 * \brief Loops over input chain and fills tree
233 *
234 * This is the major function of treeWriter, which initialize the output, loops
235 * over all events and fill the tree. In the end, the tree is saved to the
236 * output File
237 */
238
239 // here the event loop is implemented and the tree is filled
240 if (inputTree == 0) return;
241
242 // get number of events to be proceeded
243 Long64_t nentries = inputTree->GetEntries();
244 // store them in histo
245 eventNumbers->Fill( "Number of generated events", nentries );
246 if(processNEvents <= 0 || processNEvents > nentries) processNEvents = nentries;
247
248 if( loggingVerbosity > 0 )
249 std::cout << "Processing " << processNEvents << " ouf of "
250 << nentries << " events. " << std::endl;
251
252 tree->Branch("photon", &photon);
253 tree->Branch("jet", &jet);
254 tree->Branch("electron", &electron);
255 tree->Branch("muon", &muon);
256 tree->Branch("met", &met, "met/F");
257 tree->Branch("metPhi", &met_phi, "metPhi/F");
258 tree->Branch("type1met", &type1met, "type1met/F");
259 tree->Branch("type1metPhi", &type1met_phi, "type1metPhi/F");
260 tree->Branch("ht", &ht, "ht/F");
261 tree->Branch("nVertex", &nVertex, "nVertex/I");
262 tree->Branch("weight", &weight, "weight/D");
263 tree->Branch("genElectron", &genElectron);
264 tree->Branch("genPhoton", &genPhoton);
265
266 for (long jentry=0; jentry < processNEvents; ++jentry) {
267 if ( loggingVerbosity>1 || jentry%reportEvery==0 )
268 std::cout << jentry << " / " << processNEvents << std :: endl;
269 inputTree->LoadTree( jentry );
270 inputTree->GetEntry( jentry );
271
272 photon.clear();
273 jet.clear();
274 electron.clear();
275 muon.clear();
276 genElectron.clear();
277 genPhoton.clear();
278 ht = 0;
279
280 // weights
281 if (pileupHisto == 0) {
282 weight = 1.;
283 } else {
284 float trueNumInteractions = -1;
285 for( susy::PUSummaryInfoCollection::const_iterator iBX = event->pu.begin();
286 iBX != event->pu.end() && trueNumInteractions < 0; ++iBX) {
287 if (iBX->BX == 0)
288 trueNumInteractions = iBX->trueNumInteractions;
289 }
290 weight = pileupHisto->GetBinContent( pileupHisto->FindBin( trueNumInteractions ) );
291 }
292
293 // get ak5 jets
294 std::vector<susy::PFJet> jetVector = event->pfJets["ak5"];
295
296 // photons
297 std::vector<susy::Photon> photonVector = event->photons["photons"];
298
299 for(std::vector<susy::Photon>::iterator it = photonVector.begin();
300 it != photonVector.end(); ++it ) {
301 if( !(it->isEE() || it->isEB()) && it->momentum.Pt()<20 && it->isEBEtaGap() && it->isEBPhiGap() && it->isEERingGap() && it->isEEDeeGap() && it->isEBEEGap() && skim )
302 continue;
303 tree::Photon thisphoton;
304
305 thisphoton.chargedIso = chargedHadronIso_corrected(*it, event->rho25);
306 thisphoton.neutralIso = neutralHadronIso_corrected(*it, event->rho25);
307 thisphoton.photonIso = photonIso_corrected(*it, event->rho25);
308
309 bool loose_photon_barrel = it->isEB()
310 && it->hadTowOverEm<0.05
311 && it->sigmaIetaIeta<0.012
312 && thisphoton.chargedIso<2.6
313 && thisphoton.neutralIso<3.5+0.04*thisphoton.pt
314 && thisphoton.photonIso<1.3+0.005*thisphoton.pt;
315
316 bool loose_photon_endcap = it->isEE()
317 && it->hadTowOverEm<0.05
318 && it->sigmaIetaIeta<0.034
319 && thisphoton.chargedIso<2.3
320 && thisphoton.neutralIso<2.9+0.04*thisphoton.pt;
321
322 thisphoton.ptJet = getPtFromMatchedJet( *it, jetVector, loggingVerbosity );
323 if(!(loose_photon_endcap || loose_photon_barrel || thisphoton.ptJet > 75 ) && skim )
324 continue;
325 thisphoton.pt = it->momentum.Pt();
326 thisphoton.eta = it->momentum.Eta();
327 thisphoton.phi = it->momentum.Phi();
328 thisphoton.r9 = it->r9;
329 thisphoton.sigmaIetaIeta = it->sigmaIetaIeta;
330 thisphoton.hadTowOverEm = it->hadTowOverEm;
331 thisphoton.pixelseed = it->nPixelSeeds;
332 thisphoton.conversionSafeVeto = it->passelectronveto;
333 thisphoton.genInformation = 0;
334 photon.push_back( thisphoton );
335 if( loggingVerbosity > 2 )
336 std::cout << " p_T, gamma = " << thisphoton.pt << std::endl;
337 }
338
339 if( photon.size() == 0 && skim )
340 continue;
341 std::sort( photon.begin(), photon.end(), tree::EtGreater);
342 if( loggingVerbosity > 1 )
343 std::cout << "Found " << photon.size() << " photons" << std::endl;
344
345 // jets
346
347
348 for(std::vector<susy::PFJet>::iterator it = jetVector.begin();
349 it != jetVector.end(); ++it) {
350 tree::Jet thisjet;
351
352 // scale with JEC
353 float scale = 1.;
354 if(it->jecScaleFactors.count("L2L3") == 0)
355 std::cout << "ERROR: JEC is not available for this jet" << std::endl;
356 else
357 scale = it->jecScaleFactors.find("L2L3")->second;
358 TLorentzVector corrP4 = scale * it->momentum;
359
360 // Calculate HT.
361 // The definiton differs from the saved jet, since trigger is described better
362 if( std::abs( corrP4.Eta() ) < 3 && corrP4.Pt() > 40 )
363 ht += thisjet.pt;
364
365 if(std::abs(corrP4.Eta()) > 2.6 && skim ) continue;
366 if(corrP4.Pt() < 30 && skim ) continue;
367 thisjet.pt = corrP4.Pt();
368 thisjet.eta = corrP4.Eta();
369 thisjet.phi = corrP4.Phi();
370 thisjet.bCSV = it->bTagDiscriminators[susy::kCSV];
371 // jet composition
372 thisjet.chargedHadronEnergy = it->chargedHadronEnergy;
373 thisjet.neutralHadronEnergy = it->neutralHadronEnergy;
374 thisjet.photonEnergy = it->photonEnergy;
375 thisjet.electronEnergy = it->electronEnergy;
376 thisjet.muonEnergy = it->muonEnergy;
377 thisjet.HFHadronEnergy = it->HFHadronEnergy;
378 thisjet.HFEMEnergy = it->HFEMEnergy;
379 thisjet.chargedEmEnergy = it->chargedEmEnergy;
380 thisjet.chargedMuEnergy = it->chargedMuEnergy;
381 thisjet.neutralEmEnergy = it->neutralEmEnergy;
382
383 if( loggingVerbosity > 2 )
384 std::cout << " p_T, jet = " << thisjet.pt << std::endl;
385
386 jet.push_back( thisjet );
387 }// for jet
388 if( jet.size() < 2 && skim )
389 continue;
390 std::sort( jet.begin(), jet.end(), tree::EtGreater);
391 if( loggingVerbosity > 1 )
392 std::cout << "Found " << jet.size() << " jets" << std::endl;
393
394 if( ht < 450 && skim)
395 continue;
396
397
398
399 // met
400 std::map<TString, susy::MET>::iterator met_it = event->metMap.find("pfMet");
401 susy::MET* metobj = &(met_it->second);
402 met = metobj->met();
403 met_phi = metobj->mEt.Phi();
404 if( loggingVerbosity > 2 )
405 std::cout << " met = " << met << std::endl;
406
407 std::map<TString, susy::MET>::iterator type1met_it = event->metMap.find("pfType1CorrectedMet");
408 susy::MET* type1metobj = &(type1met_it->second);
409 type1met = type1metobj->met();
410 type1met_phi = type1metobj->mEt.Phi();
411 if( loggingVerbosity > 2 )
412 std::cout << " type1met = " << type1met << std::endl;
413
414 // electrons
415 std::vector<susy::Electron> eVector = event->electrons["gsfElectrons"];
416 for(std::vector<susy::Electron>::iterator it = eVector.begin(); it < eVector.end(); ++it) {
417 tree::Particle thiselectron;
418 if( loggingVerbosity > 2 )
419 cout << " electron pt = " << it->momentum.Pt() << endl;
420 // for cuts see https://twiki.cern.ch/twiki/bin/viewauth/CMS/EgammaCutBasedIdentification
421 // use veto electrons
422 if( it->momentum.Pt() < 20 || it->momentum.Pt() > 1e6 )
423 continue; // spike rejection
424 float iso = ( it->chargedHadronIso + max(it->neutralHadronIso+it->photonIso - effectiveAreaElectron(it->momentum.Eta())*event->rho25, (float)0. )
425 ) / it->momentum.Pt();
426 float d0 = d0correction( *it, *event );
427 float dZ = std::abs( dZcorrection( *it, *event ) );
428 if ( it->isEB() ){
429 if ( fabs(it->deltaEtaSuperClusterTrackAtVtx) > 0.007
430 || fabs(it->deltaPhiSuperClusterTrackAtVtx) > 0.8
431 || it->sigmaIetaIeta > 0.01
432 || it->hcalOverEcalBc > 0.15
433 || d0 > 0.04
434 || dZ > 0.2
435 || iso > 0.15 )
436 continue;
437 }
438 else if( it->isEE() ) {
439 if ( fabs(it->deltaEtaSuperClusterTrackAtVtx) > 0.01
440 || fabs(it->deltaPhiSuperClusterTrackAtVtx) > 0.7
441 || it->sigmaIetaIeta > 0.03
442 || d0 > 0.04
443 || dZ > 0.2
444 || iso > 0.15 )
445 continue;
446 }
447 else // not in barrel nor in endcap
448 continue;
449
450 thiselectron.pt = it->momentum.Pt();
451 if( loggingVerbosity > 2 )
452 std::cout << " p_T, electron = " << it->momentum.Et() << std::endl;
453 thiselectron.eta = it->momentum.Eta();
454 thiselectron.phi = it->momentum.Phi();
455 electron.push_back( thiselectron );
456 }
457 if( loggingVerbosity > 1 )
458 std::cout << "Found " << electron.size() << " electrons" << std::endl;
459
460 // muons
461 tree::Particle thismuon;
462 std::vector<susy::Muon> mVector = event->muons["muons"];
463 for( std::vector<susy::Muon>::iterator it = mVector.begin(); it != mVector.end(); ++it) {
464 if( !( it->isPFMuon() && ( it->isGlobalMuon() || it->isTrackerMuon() ) ) )
465 continue; // see https://twiki.cern.ch/twiki/bin/view/CMSPublic/SWGuideMuonId#Loose_Muon
466 thismuon.pt = it->momentum.Et();
467 if( thismuon.pt < 20 )
468 continue;
469 thismuon.eta = it->momentum.Eta();
470 thismuon.phi = it->momentum.Phi();
471 muon.push_back( thismuon );
472 }
473 if( loggingVerbosity > 1 )
474 std::cout << "Found " << muon.size() << " muons" << std::endl;
475
476 // vertices
477 nVertex = event->vertices.size();
478
479 tree::Particle thisGenParticle;
480 for( std::vector<susy::Particle>::iterator it = event->genParticles.begin(); it != event->genParticles.end(); ++it ) {
481 if( it->momentum.Pt() < 20 ) continue;
482 thisGenParticle.pt = it->momentum.Pt();
483 thisGenParticle.eta = it->momentum.Eta();
484 thisGenParticle.phi = it->momentum.Phi();
485 switch( std::abs(it->pdgId) ) {
486 case 22: // photon
487 genPhoton.push_back( thisGenParticle );
488 break;
489 case 11: // electron
490 // Demand a W boson as mother particle of electron
491 if( abs(event->genParticles[it->motherIndex].pdgId) == 24 )
492 genElectron.push_back( thisGenParticle );
493 break;
494 }
495 }
496
497 tree->Fill();
498 } // for jentry
499
500
501 outFile->cd();
502 eventNumbers->Write();
503 tree->Write();
504 outFile->Write();
505 outFile->Close();
506 }
507