1 | /*
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2 | ---- Delphes ----
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3 | A Fast Simulator for general purpose LHC detector
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4 | S. Ovyn ~~~~ severine.ovyn@uclouvain.be
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5 |
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6 | Center for Particle Physics and Phenomenology (CP3)
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7 | Universite Catholique de Louvain (UCL)
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8 | Louvain-la-Neuve, Belgium
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9 | */
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10 |
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11 | /// \file Delphes.cpp
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12 | /// \brief executable for the Delphes
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13 |
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14 | #include "TChain.h"
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15 | #include "TApplication.h"
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16 |
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17 | #include "Utilities/ExRootAnalysis/interface/ExRootTreeReader.h"
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18 | #include "Utilities/ExRootAnalysis/interface/ExRootTreeWriter.h"
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19 | #include "Utilities/ExRootAnalysis/interface/ExRootTreeBranch.h"
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20 |
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21 | #include "interface/DataConverter.h"
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22 | #include "interface/HEPEVTConverter.h"
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23 | #include "interface/LHEFConverter.h"
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24 | #include "interface/STDHEPConverter.h"
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25 |
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26 | #include "interface/SmearUtil.h"
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27 | #include "interface/BFieldProp.h"
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28 | #include "interface/TriggerUtil.h"
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29 | #include "interface/VeryForward.h"
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30 | #include "interface/JetUtils.h"
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31 |
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32 | #include <vector>
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33 | #include <iostream>
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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 | void todo(string filename) {
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39 | ifstream infile(filename.c_str());
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40 | cout << "** TODO list ..." << endl;
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41 | while(infile.good()) {
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42 | string temp;
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43 | getline(infile,temp);
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44 | cout << "*" << temp << endl;
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45 | }
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46 | cout << "** done...\n";
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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 | int main(int argc, char *argv[])
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52 | {
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53 | int appargc = 2;
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54 | char *appName = "Delphes";
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55 | char *appargv[] = {appName, "-b"};
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56 | TApplication app(appName, &appargc, appargv);
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57 |
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58 | if(argc != 4 && argc != 3 && argc != 5) {
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59 | cout << " Usage: " << argv[0] << " input_file output_file [detector_card] [trigger_card] " << endl;
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60 | cout << " input_list - list of files in Ntpl, StdHep of LHEF format," << endl;
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61 | cout << " output_file - output file." << endl;
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62 | cout << " detector_card - Datacard containing resolution variables for the detector simulation (optional) "<<endl;
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63 | cout << " trigger_card - Datacard containing the trigger algorithms (optional) "<<endl;
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64 | exit(1);
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65 | }
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66 |
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67 | srand (time (NULL)); /* Initialisation du générateur */
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68 |
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69 | //read the input TROOT file
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70 | string inputFileList(argv[1]), outputfilename(argv[2]);
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71 | if(outputfilename.find(".root") > outputfilename.length() ) {
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72 | cout << "output_file should be a .root file!\n";
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73 | exit(1);
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74 | }
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75 | //create output log-file name
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76 | string forLog = outputfilename;
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77 | string LogName = forLog.erase(forLog.find(".root"));
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78 | LogName = LogName+"_run.log";
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79 |
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80 | TFile *outputFile = TFile::Open(outputfilename.c_str(), "RECREATE"); // Creates the file, but should be closed just after
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81 | outputFile->Close();
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82 |
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83 | string line;
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84 | ifstream infile(inputFileList.c_str());
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85 | infile >> line; // the first line determines the type of input files
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86 |
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87 | //read the datacard input file
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88 | string DetDatacard("");
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89 | if(argc==4) DetDatacard =argv[3];
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90 |
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91 | //Smearing information
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92 | RESOLution *DET = new RESOLution();
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93 | DET->ReadDataCard(DetDatacard);
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94 | DET->Logfile(LogName);
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95 |
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96 | //Trigger information
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97 | //Trigger *TRIG = new Trigger();
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98 | //TRIG->TriggerReader("data/trigger.dat");
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99 |
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100 | //Propagation of tracks in the B field
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101 | TrackPropagation *TRACP = new TrackPropagation();
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102 |
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103 | //Jet information
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104 | JetsUtil *JETRUN = new JetsUtil();
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105 |
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106 | //VFD information
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107 | VeryForward * VFD = new VeryForward();
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108 |
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109 | //todo(LogName.c_str());
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110 |
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111 | DataConverter *converter=0;
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112 |
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113 | if(strstr(line.c_str(),".hep"))
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114 | {
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115 | cout<<"#**********************************************************************"<<endl;
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116 | cout<<"#********** StdHEP file format detected *************"<<endl;
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117 | cout<<"#*********** Starting convertion to TRoot format **************"<<endl;
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118 | cout<<"#**********************************************************************"<<endl;
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119 | converter = new STDHEPConverter(inputFileList,outputfilename);//case ntpl file in input list
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120 | }
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121 | else if(strstr(line.c_str(),".lhe"))
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122 | {
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123 | cout<<"#**********************************************************************"<<endl;
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124 | cout<<"#*********** LHEF file format detected ************"<<endl;
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125 | cout<<"#*********** Starting convertion to TRoot format ************"<<endl;
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126 | cout<<"#**********************************************************************"<<endl;
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127 | converter = new LHEFConverter(inputFileList,outputfilename);//case ntpl file in input list
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128 | }
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129 | else if(strstr(line.c_str(),".root"))
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130 | {
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131 | cout<<"#**********************************************************************"<<endl;
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132 | cout<<"#********** h2root file format detected *************"<<endl;
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133 | cout<<"#********** Starting convertion to TRoot format *************"<<endl;
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134 | cout<<"#**********************************************************************"<<endl;
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135 | converter = new HEPEVTConverter(inputFileList,outputfilename);//case ntpl file in input list
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136 | }
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137 | else { cout << "*** " << line.c_str() << "\n*** file format not identified\n*** Exiting\n"; return -1;};
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138 |
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139 | TChain chain("GEN");
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140 | chain.Add(outputfilename.c_str());
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141 | ExRootTreeReader *treeReader = new ExRootTreeReader(&chain);
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142 | const TClonesArray *branchGen = treeReader->UseBranch("Particle");
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143 | TIter itGen((TCollection*)branchGen);
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144 |
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145 | //write the output root file
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146 | ExRootTreeWriter *treeWriter = new ExRootTreeWriter(outputfilename, "Analysis");
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147 | ExRootTreeBranch *branchJet = treeWriter->NewBranch("Jet", TRootJet::Class());
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148 | ExRootTreeBranch *branchTauJet = treeWriter->NewBranch("TauJet", TRootTauJet::Class());
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149 | ExRootTreeBranch *branchElectron = treeWriter->NewBranch("Electron", TRootElectron::Class());
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150 | ExRootTreeBranch *branchMuon = treeWriter->NewBranch("Muon", TRootMuon::Class());
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151 | ExRootTreeBranch *branchPhoton = treeWriter->NewBranch("Photon", TRootPhoton::Class());
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152 | ExRootTreeBranch *branchTracks = treeWriter->NewBranch("Tracks", TRootTracks::Class());
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153 | ExRootTreeBranch *branchETmis = treeWriter->NewBranch("ETmis", TRootETmis::Class());
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154 | ExRootTreeBranch *branchCalo = treeWriter->NewBranch("CaloTower", TRootCalo::Class());
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155 | ExRootTreeBranch *branchZDC = treeWriter->NewBranch("ZDChits", TRootZdcHits::Class());
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156 | ExRootTreeBranch *branchRP220 = treeWriter->NewBranch("RP220hits", TRootRomanPotHits::Class());
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157 | ExRootTreeBranch *branchFP420 = treeWriter->NewBranch("FP420hits", TRootRomanPotHits::Class());
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158 |
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159 |
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160 | TRootGenParticle *particle;
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161 | TRootETmis *elementEtmis;
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162 | TRootElectron *elementElec;
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163 | TRootMuon *elementMu;
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164 | TRootPhoton *elementPhoton;
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165 | TRootTracks *elementTracks;
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166 | TRootCalo *elementCalo;
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167 |
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168 | TLorentzVector genMomentum(0,0,0,0);
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169 | TLorentzVector genMomentumCalo(0,0,0,0);
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170 | LorentzVector jetMomentum;
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171 |
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172 | vector<fastjet::PseudoJet> input_particles;//for FastJet algorithm
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173 | vector<fastjet::PseudoJet> sorted_jets;
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174 |
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175 | vector<TLorentzVector> TrackCentral;
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176 | vector<PhysicsTower> towers;
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177 |
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178 | vector<TLorentzVector> electron;
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179 | vector<int> elecPID;
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180 | vector<TLorentzVector> muon;
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181 | vector<int> muonPID;
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182 | TSimpleArray<TRootGenParticle> NFCentralQ;
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183 |
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184 |
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185 |
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186 | // Loop over all events
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187 | Long64_t entry, allEntries = treeReader->GetEntries();
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188 | cout << "** Chain contains " << allEntries << " events" << endl;
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189 | for(entry = 0; entry < allEntries; ++entry)
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190 | {
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191 | TLorentzVector PTmis(0,0,0,0);
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192 | treeReader->ReadEntry(entry);
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193 | treeWriter->Clear();
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194 | if((entry % 100) == 0 && entry > 0 ) cout << "** Processing element # " << entry << endl;
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195 |
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196 | electron.clear();
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197 | muon.clear();
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198 | elecPID.clear();
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199 | muonPID.clear();
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200 | NFCentralQ.Clear();
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201 |
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202 | itGen.Reset();
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203 | TrackCentral.clear();
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204 | towers.clear();
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205 | input_particles.clear();
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206 |
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207 | // Loop over all particles in event
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208 | while( (particle = (TRootGenParticle*) itGen.Next()) )
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209 | {
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210 | int pid = abs(particle->PID);
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211 | //// This subarray is needed for the B-jet algorithm
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212 | // optimization for speed : put first PID condition, then ETA condition, then either pt or status
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213 | if( (pid <= pB || pid == pGLUON) &&// is it a light quark or a gluon, i.e. is it one of these : u,d,c,s,b,g ?
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214 | fabs(particle->Eta) < DET->MAX_TRACKER &&
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215 | particle->Status != 1 &&
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216 | particle->PT > DET->PT_QUARKS_MIN ) {
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217 | NFCentralQ.Add(particle);
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218 | }
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219 |
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220 | // keeps only final particles, visible by the central detector, including the fiducial volume
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221 | // the ordering of conditions have been optimised for speed : put first the STATUS condition
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222 | //
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223 | //
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224 | if( (particle->Status == 1) &&
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225 | ((pid != pNU1) && (pid != pNU2) && (pid != pNU3)) &&
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226 | (fabs(particle->Eta) < DET->MAX_CALO_FWD)
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227 | )
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228 | {
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229 | genMomentum.SetPxPyPzE(particle->Px, particle->Py, particle->Pz, particle->E);
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230 | TRACP->Propagation(particle,genMomentum);
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231 | float eta=fabs(genMomentum.Eta());
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232 | switch(pid) {
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233 |
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234 | case pE: // all electrons with eta < DET->MAX_CALO_FWD
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235 | DET->SmearElectron(genMomentum);
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236 | electron.push_back(genMomentum);
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237 | elecPID.push_back(particle->PID);
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238 | break; // case pE
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239 | case pGAMMA: // all photons with eta < DET->MAX_CALO_FWD
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240 | DET->SmearElectron(genMomentum);
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241 | if(genMomentum.E()!=0 && eta < DET->MAX_TRACKER) {
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242 | elementPhoton = (TRootPhoton*) branchPhoton->NewEntry();
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243 | elementPhoton->Set(genMomentum);
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244 | }
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245 | break; // case pGAMMA
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246 | case pMU: // all muons with eta < DET->MAX_MU
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247 | DET->SmearMu(genMomentum);
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248 | muonPID.push_back(particle->PID);
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249 | muon.push_back(genMomentum);
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250 | break; // case pMU
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251 | case pLAMBDA: // all lambdas with eta < DET->MAX_CALO_FWD
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252 | case pK0S: // all K0s with eta < DET->MAX_CALO_FWD
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253 | DET->SmearHadron(genMomentum, 0.7);
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254 | break; // case hadron
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255 | default: // all other final particles with eta < DET->MAX_CALO_FWD
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256 | DET->SmearHadron(genMomentum, 1.0);
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257 | break;
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258 | } // switch (pid)
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259 |
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260 | // all final particles but muons and neutrinos
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261 | // for calorimetric towers and mission PT
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262 |
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263 | if(genMomentum.E() !=0) {
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264 | if(pid !=pMU) {
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265 | PhysicsTower CaloTower = PhysicsTower(LorentzVector(genMomentum.Px(),genMomentum.Py(),genMomentum.Pz(), genMomentum.E()));
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266 | towers.push_back(CaloTower);
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267 | // create a fastjet::PseudoJet with these components and put it onto
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268 | // back of the input_particles vector
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269 | input_particles.push_back(fastjet::PseudoJet(genMomentum.Px(),genMomentum.Py(),genMomentum.Pz(), genMomentum.E()));
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270 |
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271 | genMomentumCalo.SetPxPyPzE(CaloTower.fourVector.px,CaloTower.fourVector.py,CaloTower.fourVector.pz,CaloTower.fourVector.E);
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272 | elementCalo = (TRootCalo*) branchCalo->NewEntry();
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273 | elementCalo->Set(genMomentumCalo);
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274 | DET->BinEtaPhi(genMomentumCalo.Phi(), genMomentumCalo.Eta(), elementCalo->Phi, elementCalo->Eta);
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275 | }
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276 | }
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277 |
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278 | // all final charged particles
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279 | if(
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280 | ((rand()%100) < DET->TRACKING_EFF) &&
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281 | (genMomentum.E()!=0) &&
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282 | (fabs(genMomentum.Eta()) < DET->MAX_TRACKER) &&
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283 | (genMomentum.Pt() > DET->PT_TRACKS_MIN ) && // pt too small to be taken into account
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284 | (pid != pGAMMA) &&
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285 | (pid != pPI0) &&
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286 | (pid != pK0L) &&
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287 | (pid != pN) &&
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288 | (pid != pSIGMA0) &&
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289 | (pid != pDELTA0) &&
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290 | (pid != pK0S) // not charged particles : invisible by tracker
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291 | )
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292 | {
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293 | elementTracks = (TRootTracks*) branchTracks->NewEntry();
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294 | elementTracks->Set(genMomentum);
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295 | TrackCentral.push_back(genMomentum);
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296 | }
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297 |
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298 | } // switch
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299 |
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300 | VFD->ZDC(treeWriter,branchZDC,particle);
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301 | VFD->RomanPots(treeWriter,branchRP220,branchFP420,particle);
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302 |
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303 | } // while
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304 |
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305 | for(unsigned int i=0; i < electron.size(); i++) {
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306 | if(electron[i].E()!=0 && fabs(electron[i].Eta()) < DET->MAX_TRACKER && electron[i].Pt() > DET->ELEC_pt)
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307 | {
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308 | elementElec = (TRootElectron*) branchElectron->NewEntry();
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309 | elementElec->Set(electron[i]);
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310 | elementElec->Charge = sign(elecPID[i]);
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311 | elementElec->IsolFlag = DET->Isolation(electron[i].Phi(),electron[i].Eta(),TrackCentral,2.0);
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312 | }
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313 | }
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314 | for(unsigned int i=0; i < muon.size(); i++) {
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315 | if(muon[i].E()!=0 && fabs(muon[i].Eta()) < DET->MAX_MU && muon[i].Pt() > DET->MUON_pt)
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316 | {
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317 | elementMu = (TRootMuon*) branchMuon->NewEntry();
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318 | elementMu->Charge = sign(muonPID[i]);
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319 | elementMu->Set(muon[i]);
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320 | elementMu->IsolFlag = DET->Isolation(muon[i].Phi(),muon[i].Eta(),TrackCentral,2.0);
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321 | }
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322 | }
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323 |
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324 | // computes the Missing Transverse Momentum
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325 | TLorentzVector Att(0.,0.,0.,0.);
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326 | for(unsigned int i=0; i < towers.size(); i++)
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327 | {
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328 | Att.SetPxPyPzE(towers[i].fourVector.px,towers[i].fourVector.py,towers[i].fourVector.pz,towers[i].fourVector.E);
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329 | PTmis = PTmis + Att;
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330 | }
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331 | elementEtmis = (TRootETmis*) branchETmis->NewEntry();
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332 | elementEtmis->ET = (PTmis).Pt();
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333 | elementEtmis->Phi = (-PTmis).Phi();
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334 | elementEtmis->Px = (-PTmis).Px();
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335 | elementEtmis->Py = (-PTmis).Py();
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336 |
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337 | //*****************************
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338 | treeWriter->Fill();
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339 |
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340 | sorted_jets=JETRUN->RunJets(input_particles);
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341 | JETRUN->RunJetBtagging(treeWriter, branchJet,sorted_jets,NFCentralQ);
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342 | JETRUN->RunTauJets(treeWriter,branchTauJet,sorted_jets,towers, TrackCentral);
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343 |
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344 | // Add here the trigger
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345 | // Should test all the trigger table on the event, based on reconstructed objects
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346 |
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347 | } // Loop over all events
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348 |
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349 | treeWriter->Write();
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350 |
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351 | cout << "** Exiting..." << endl;
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352 |
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353 | delete treeWriter;
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354 | delete treeReader;
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355 | delete DET;
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356 | if(converter) delete converter;
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357 |
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358 | todo("TODO");
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359 | }
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360 |
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