[1] | 1 | |
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| 2 | #include "modules/Tracking.h" |
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| 3 | |
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| 4 | #include "classes/DelphesClasses.h" |
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| 5 | #include "classes/DelphesFactory.h" |
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| 6 | #include "classes/DelphesFormula.h" |
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| 7 | |
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| 8 | #include "ExRootAnalysis/ExRootResult.h" |
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| 9 | #include "ExRootAnalysis/ExRootFilter.h" |
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| 10 | #include "ExRootAnalysis/ExRootClassifier.h" |
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| 11 | |
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| 12 | #include "TMath.h" |
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| 13 | #include "TString.h" |
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| 14 | #include "TFormula.h" |
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| 15 | #include "TRandom3.h" |
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| 16 | #include "TObjArray.h" |
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| 17 | #include "TDatabasePDG.h" |
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| 18 | #include "TLorentzVector.h" |
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| 19 | |
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| 20 | #include <algorithm> |
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| 21 | #include <stdexcept> |
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| 22 | #include <iostream> |
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| 23 | #include <sstream> |
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| 24 | |
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| 25 | using namespace std; |
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| 26 | |
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| 27 | //------------------------------------------------------------------------------ |
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| 28 | |
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| 29 | Tracking::Tracking() : |
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| 30 | fItInputArray(0) |
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| 31 | { |
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| 32 | } |
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| 33 | |
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| 34 | //------------------------------------------------------------------------------ |
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| 35 | |
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| 36 | Tracking::~Tracking() |
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| 37 | { |
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| 38 | } |
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| 39 | |
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| 40 | //------------------------------------------------------------------------------ |
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| 41 | |
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| 42 | void Tracking::Init() |
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| 43 | { |
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| 44 | ExRootConfParam paramEff, paramEffEta, paramEffPt, paramEffVal, paramEffPart; |
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| 45 | ExRootConfParam paramPtRes, paramPtResEta, paramPtResPt, paramPtResVal, paramPtResPart; |
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| 46 | |
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| 47 | Int_t i, size, ref=0, pid=0; |
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| 48 | |
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| 49 | fTrkMaxEta = GetDouble("TrackMaxEta", 2.5); |
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| 50 | fTrkMinPt = GetDouble("TrackMinPt" , 1); |
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| 51 | |
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| 52 | |
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| 53 | // fTrkEff = GetDouble("TrackingEfficiency", 90); //for a flat efficiency |
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| 54 | |
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| 55 | paramEff = GetParam("TrackingEfficiency"); |
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| 56 | paramPtRes = GetParam("TrackingPtResolution"); |
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| 57 | |
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| 58 | size = paramEff.GetSize(); |
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| 59 | //default tracking efficiency all are set to 90% by default |
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| 60 | TInt EtaInt = make_pair(0.0,50); |
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| 61 | TInt PtInt = make_pair(0.0,10000.0); |
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| 62 | TPtEtaInt PtEtaInt = make_pair(EtaInt,PtInt); |
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| 63 | TTrkMap TrkEffMap; |
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| 64 | TrkEffMap[PtEtaInt]=50; //only one entry in this simple map |
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| 65 | |
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| 66 | fTrkEffPartMap[11] = TrkEffMap; // electrons |
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| 67 | fTrkEffPartMap[13] = TrkEffMap; // muons |
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| 68 | fTrkEffPartMap[999] = TrkEffMap; // hadrons (pid 999 does not exist ...) |
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| 69 | |
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| 70 | // read efficiencies from cfg file |
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| 71 | for(i = 0; i < size/4; ++i) |
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| 72 | { |
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| 73 | paramEffPart = paramEff[i*4]; |
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| 74 | paramEffEta = paramEff[i*4+1]; |
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| 75 | paramEffPt = paramEff[i*4+2]; |
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| 76 | paramEffVal = paramEff[i*4+3]; |
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| 77 | pid = paramEffPart[0].GetInt(); |
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| 78 | |
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| 79 | if(ref!=pid) TrkEffMap.clear(); |
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| 80 | ref = (ref==pid)? ref : pid; |
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| 81 | |
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| 82 | EtaInt = make_pair(paramEffEta[0].GetDouble(),paramEffEta[1].GetDouble()); |
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| 83 | PtInt = make_pair(paramEffPt[0].GetDouble(),paramEffPt[1].GetDouble()); |
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| 84 | PtEtaInt = make_pair(EtaInt,PtInt); |
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| 85 | TrkEffMap[PtEtaInt] = paramEffVal.GetDouble(); |
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| 86 | fTrkEffPartMap[pid] = TrkEffMap; |
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| 87 | } |
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| 88 | |
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| 89 | |
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| 90 | size = paramPtRes.GetSize(); |
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| 91 | //default tracking pt res all are set to 90% by default |
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| 92 | TTrkMap TrkPtResMap; |
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| 93 | TrkPtResMap[PtEtaInt]=1.; //only one entry in this simple map |
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| 94 | |
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| 95 | fTrkPtResPartMap[11] = TrkPtResMap; // electrons |
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| 96 | fTrkPtResPartMap[13] = TrkPtResMap; // muons |
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| 97 | fTrkPtResPartMap[999] = TrkPtResMap; // hadrons (pid 999 does not exist ...) |
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| 98 | |
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| 99 | // read resolutions from cfg file |
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| 100 | for(i = 0; i < size/4; ++i) |
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| 101 | { |
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| 102 | paramPtResPart = paramPtRes[i*4]; |
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| 103 | paramPtResEta = paramPtRes[i*4+1]; |
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| 104 | paramPtResPt = paramPtRes[i*4+2]; |
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| 105 | paramPtResVal = paramPtRes[i*4+3]; |
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| 106 | pid = paramPtResPart[0].GetInt(); |
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| 107 | |
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| 108 | if(ref!=pid) TrkPtResMap.clear(); |
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| 109 | ref = (ref==pid)? ref : pid; |
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| 110 | |
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| 111 | EtaInt = make_pair(paramPtResEta[0].GetDouble(),paramPtResEta[1].GetDouble()); |
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| 112 | PtInt = make_pair(paramPtResPt[0].GetDouble(),paramPtResPt[1].GetDouble()); |
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| 113 | PtEtaInt = make_pair(EtaInt,PtInt); |
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| 114 | TrkPtResMap[PtEtaInt] = paramPtResVal.GetDouble(); |
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| 115 | fTrkPtResPartMap[pid] = TrkPtResMap; |
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| 116 | } |
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| 117 | |
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| 118 | |
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| 119 | |
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| 120 | // import array with output from filter/classifier module |
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| 121 | |
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| 122 | fInputArray = ImportArray(GetString("InputArray", "ParticlePropagator/candidates")); |
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| 123 | fItInputArray = fInputArray->MakeIterator(); |
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| 124 | |
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| 125 | // create output arrays |
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| 126 | |
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| 127 | fOutputArray = ExportArray(GetString("TrackOutputArray", "tracks")); |
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| 128 | |
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| 129 | } |
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| 130 | |
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| 131 | //------------------------------------------------------------------------------ |
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| 132 | |
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| 133 | void Tracking::Finish() |
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| 134 | { |
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| 135 | } |
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| 136 | |
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| 137 | //------------------------------------------------------------------------------ |
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| 138 | |
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| 139 | void Tracking::Process() |
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| 140 | { |
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| 141 | Candidate *candidate, *mother; |
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| 142 | TLorentzVector candidatePosition, candidateMomentum; |
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| 143 | Double_t x, y, z, px, py, pz, pt, pt2, eta, phi, e, m, q; |
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| 144 | Int_t pid; |
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| 145 | TRandom3 * grandom = new TRandom3(0); |
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| 146 | |
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| 147 | fItInputArray->Reset(); |
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| 148 | while((candidate = static_cast<Candidate*>(fItInputArray->Next()))) |
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| 149 | { |
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| 150 | candidatePosition = candidate->Position; |
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| 151 | candidateMomentum = candidate->Momentum; |
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| 152 | x = candidatePosition.X()*1.0E-3; |
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| 153 | y = candidatePosition.Y()*1.0E-3; |
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| 154 | z = candidatePosition.Z()*1.0E-3; |
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| 155 | m = candidate->Mass; |
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| 156 | q = candidate->Charge; |
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| 157 | pid = TMath::Abs(candidate->PID); |
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| 158 | px = candidateMomentum.Px(); |
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| 159 | py = candidateMomentum.Py(); |
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| 160 | pz = candidateMomentum.Pz(); |
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| 161 | pt = candidateMomentum.Pt(); |
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| 162 | pt2 = candidateMomentum.Perp2(); |
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| 163 | e = candidateMomentum.E(); |
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| 164 | eta = candidateMomentum.Eta(); |
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| 165 | phi = candidateMomentum.Phi(); |
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| 166 | |
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| 167 | // check that particle is charged, and that it passes standard acceptance cuts |
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| 168 | if(q==0 || TMath::Abs(eta)>fTrkMaxEta || pt<fTrkMinPt ) continue; |
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| 169 | |
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| 170 | // check that track is lucky |
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| 171 | if( grandom->Uniform(0,100) > Value(pid,pt,eta,fTrkEffPartMap) ) continue; |
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| 172 | |
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| 173 | //smearing pt according to tracking resolution |
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| 174 | Double_t sPT = grandom->Gaus(pt, Value(pid,pt,eta,fTrkPtResPartMap)*pt*0.01 ); |
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| 175 | if(sPT <=0) continue; |
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| 176 | else |
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| 177 | { |
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| 178 | mother = candidate; |
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| 179 | candidate = static_cast<Candidate*>(candidate->Clone()); |
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| 180 | candidate->Momentum.SetPtEtaPhiE(sPT,eta,phi,sPT*cosh(eta)); |
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| 181 | candidate->Mother = mother; |
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| 182 | } |
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| 183 | |
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| 184 | fOutputArray->Add(candidate); |
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| 185 | } |
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| 186 | delete grandom; |
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| 187 | } |
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| 188 | |
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| 189 | //------------------------------------------------------------------------------ |
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| 190 | |
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| 191 | Double_t Tracking::Value(Int_t pid, Double_t pt, Double_t eta, TTrkPartMap TrkPartMap) |
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| 192 | { |
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| 193 | |
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| 194 | Double_t eff=0; |
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| 195 | if(pid!=11 &&pid!=13) pid=999; |
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| 196 | TTrkMap TrkEffMap = TrkPartMap[pid]; |
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| 197 | |
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| 198 | for(It_tm it = TrkEffMap.begin(); it != TrkEffMap.end(); it++) |
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| 199 | { |
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| 200 | TPtEtaInt inter = it->first; |
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| 201 | TInt eta_int = inter.first; |
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| 202 | TInt pt_int = inter.second; |
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| 203 | Double_t etamin = eta_int.first; |
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| 204 | Double_t etamax = eta_int.second; |
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| 205 | Double_t ptmin = pt_int.first; |
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| 206 | Double_t ptmax = pt_int.second; |
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| 207 | Double_t EFF= it->second; |
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| 208 | |
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| 209 | // cout<<"PID: "<<pid<<" ,ETA: "<<eta<<", PT: "<<pt<<",eff: "<<EFF<<endl; |
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| 210 | |
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| 211 | Bool_t ok = pt>ptmin && pt<ptmax && TMath::Abs(eta)>etamin && TMath::Abs(eta)<etamax; |
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| 212 | if(ok)eff=EFF; |
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| 213 | if(ok)break; |
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| 214 | } |
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| 215 | return eff; |
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| 216 | |
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| 217 | } |
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