1 | |
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2 | /** \class LeptonDressing |
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3 | * |
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4 | * |
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5 | * |
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6 | * |
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7 | * |
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8 | * \author P. Demin && A. Mertens - UCL, Louvain-la-Neuve |
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9 | * |
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10 | */ |
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11 | |
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12 | #include "modules/LeptonDressing.h" |
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13 | |
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14 | #include "classes/DelphesClasses.h" |
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15 | #include "classes/DelphesFactory.h" |
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16 | #include "classes/DelphesFormula.h" |
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17 | |
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18 | #include "ExRootAnalysis/ExRootResult.h" |
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19 | #include "ExRootAnalysis/ExRootFilter.h" |
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20 | #include "ExRootAnalysis/ExRootClassifier.h" |
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21 | |
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22 | #include "TMath.h" |
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23 | #include "TString.h" |
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24 | #include "TFormula.h" |
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25 | #include "TRandom3.h" |
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26 | #include "TObjArray.h" |
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27 | #include "TDatabasePDG.h" |
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28 | #include "TLorentzVector.h" |
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29 | |
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30 | #include <algorithm> |
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31 | #include <stdexcept> |
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32 | #include <iostream> |
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33 | #include <sstream> |
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34 | |
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35 | using namespace std; |
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36 | |
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37 | //------------------------------------------------------------------------------ |
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38 | |
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39 | LeptonDressing::LeptonDressing() : |
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40 | fItDressingInputArray(0), fItCandidateInputArray(0) |
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41 | { |
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42 | } |
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43 | |
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44 | //------------------------------------------------------------------------------ |
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45 | |
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46 | LeptonDressing::~LeptonDressing() |
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47 | { |
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48 | } |
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49 | |
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50 | //------------------------------------------------------------------------------ |
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51 | |
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52 | void LeptonDressing::Init() |
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53 | { |
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54 | fDeltaR = GetDouble("DeltaRMax", 0.4); |
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55 | |
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56 | // import input array(s) |
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57 | |
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58 | fDressingInputArray = ImportArray(GetString("DressingInputArray", "Calorimeter/photons")); |
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59 | fItDressingInputArray = fDressingInputArray->MakeIterator(); |
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60 | |
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61 | fCandidateInputArray = ImportArray(GetString("CandidateInputArray", "UniqueObjectFinder/electrons")); |
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62 | fItCandidateInputArray = fCandidateInputArray->MakeIterator(); |
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63 | |
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64 | // create output array |
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65 | |
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66 | fOutputArray = ExportArray(GetString("OutputArray", "electrons")); |
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67 | } |
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68 | |
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69 | //------------------------------------------------------------------------------ |
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70 | |
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71 | void LeptonDressing::Finish() |
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72 | { |
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73 | if(fItCandidateInputArray) delete fItCandidateInputArray; |
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74 | if(fItDressingInputArray) delete fItDressingInputArray; |
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75 | } |
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76 | |
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77 | //------------------------------------------------------------------------------ |
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78 | |
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79 | void LeptonDressing::Process() |
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80 | { |
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81 | Candidate *candidate, *dressing, *mother; |
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82 | TLorentzVector momentum; |
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83 | |
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84 | // loop over all input candidate |
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85 | fItCandidateInputArray->Reset(); |
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86 | while((candidate = static_cast<Candidate*>(fItCandidateInputArray->Next()))) |
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87 | { |
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88 | const TLorentzVector &candidateMomentum = candidate->Momentum; |
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89 | |
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90 | // loop over all input tracks |
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91 | fItDressingInputArray->Reset(); |
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92 | momentum.SetPxPyPzE(0.0, 0.0, 0.0, 0.0); |
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93 | while((dressing = static_cast<Candidate*>(fItDressingInputArray->Next()))) |
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94 | { |
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95 | const TLorentzVector &dressingMomentum = dressing->Momentum; |
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96 | if (dressingMomentum.Pt() > 0.1) |
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97 | { |
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98 | if(candidateMomentum.DeltaR(dressingMomentum) <= fDeltaR) |
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99 | { |
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100 | momentum += dressingMomentum; |
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101 | } |
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102 | } |
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103 | } |
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104 | |
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105 | mother = candidate; |
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106 | candidate = static_cast<Candidate*>(candidate->Clone()); |
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107 | |
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108 | candidate->Momentum += momentum; |
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109 | candidate->AddCandidate(mother); |
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110 | |
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111 | fOutputArray->Add(candidate); |
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112 | } |
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113 | } |
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114 | |
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115 | //------------------------------------------------------------------------------ |
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