1 |
dasu |
1.1 |
// This simple program generates various signal processes for
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2 |
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// MSSM bbPhi process and its backgrounds.
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3 |
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// It includes the mixing of required level of pileup.
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// It then takes pythia output and runs it through very simplistic
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// detector simulation using parameterizations, including making
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// isolated light leptons, photons, composite tau, jet and b-tagged
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// jet objects.
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// It saves the output in root format for later analysis.
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using namespace std;
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#include <math.h>
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#include "Pythia.h"
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using namespace Pythia8;
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dasu |
1.10 |
#include "TROOT.h"
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#include "TFile.h"
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18 |
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19 |
dasu |
1.1 |
#include "UltraFastSim.h"
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20 |
dasu |
1.8 |
#include "bbHAnalysis.h"
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21 |
dasu |
1.10 |
#include "ZHAnalysis.h"
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22 |
dasu |
1.1 |
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23 |
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int main(int argc, char **argv) {
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// Generator. Process selection. LHC initialization. Histogram.
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Pythia pythia;
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int nEvents = 0;
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int runNumber = 0;
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int meanPileupEventCount = 0;
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if(argc < 3 || argc > 5)
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{
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dasu |
1.6 |
cerr << "Command syntax: " << argv[0] << " ZHmmbb[...]" << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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32 |
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cerr << "or " << argv[0] << " ZHeebb[...]" << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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33 |
dasu |
1.10 |
cerr << "or " << argv[0] << " ZZmmbb[...]" << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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dasu |
1.6 |
cerr << "or " << argv[0] << " BBHmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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35 |
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cerr << "or " << argv[0] << " BBAmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Zee[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Zmm[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Zeh[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Zmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Zhh[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Wen[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Wmn[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Ten[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "or " << argv[0] << " Tmn[...] " << " <nEvents> [RandomSeed] [meanPileupEventCount]" << endl;
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cerr << "In above e-electron, m-muon, h-hadronic tau. n-neutrino" << endl;
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dasu |
1.1 |
exit(1);
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}
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else {
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nEvents = atoi(argv[2]);
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if(argc >= 4) runNumber = atoi(argv[3]);
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if(argc >= 5) meanPileupEventCount = atoi(argv[4]);
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52 |
dasu |
1.6 |
if(strncmp(argv[1], "Zee", 3) == 0)
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dasu |
1.1 |
{
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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pythia.readString("PhaseSpace:mHatMin = 60.");
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pythia.readString("PhaseSpace:mHatMax = -1");
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dasu |
1.6 |
pythia.readString("23:onMode = 0"); // Z decays to electrons only
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pythia.readString("23:onIfAny = 11");
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dasu |
1.1 |
}
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60 |
dasu |
1.6 |
else if(strncmp(argv[1], "Zmm", 3) == 0)
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dasu |
1.3 |
{
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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pythia.readString("PhaseSpace:mHatMin = 60.");
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pythia.readString("PhaseSpace:mHatMax = -1");
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pythia.readString("23:onMode = 0"); // Z decays to muons only
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pythia.readString("23:onIfAny = 13");
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}
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dasu |
1.6 |
else if(strncmp(argv[1], "Zeh", 3) == 0)
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{
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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pythia.readString("PhaseSpace:mHatMin = 60.");
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pythia.readString("PhaseSpace:mHatMax = -1");
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pythia.readString("23:onMode = 0"); // Z decays to taus only
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pythia.readString("23:onIfAny = 15");
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pythia.readString("15:onMode = 2"); // tau- decays to electrons - second tau decays in all modes
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pythia.readString("15:onIfAny = 11");
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}
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else if(strncmp(argv[1], "Zmh", 3) == 0)
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{
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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pythia.readString("PhaseSpace:mHatMin = 60.");
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pythia.readString("PhaseSpace:mHatMax = -1");
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pythia.readString("23:onMode = 0"); // Z decays to taus only
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pythia.readString("23:onIfAny = 15");
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pythia.readString("15:onMode = 2"); // tau- decays to muons - second tau decays in all modes
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pythia.readString("15:onIfAny = 13");
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}
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else if(strncmp(argv[1], "Zhh", 3) == 0)
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{
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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pythia.readString("PhaseSpace:mHatMin = 60.");
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pythia.readString("PhaseSpace:mHatMax = -1");
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pythia.readString("23:onMode = 0"); // Z decays to taus only
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pythia.readString("23:onIfAny = 15");
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}
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else if(strncmp(argv[1], "Wen", 3) == 0)
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{
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pythia.readString("WeakSingleBoson:ffbar2W = on");
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pythia.readString("24:onMode = 0"); // W decays to electron
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pythia.readString("24:onIfAny = 11");
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101 |
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}
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102 |
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else if(strncmp(argv[1], "Wmn", 3) == 0)
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103 |
dasu |
1.1 |
{
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104 |
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pythia.readString("WeakSingleBoson:ffbar2W = on");
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105 |
dasu |
1.6 |
pythia.readString("24:onMode = 0"); // W decays to muon
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106 |
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pythia.readString("24:onIfAny = 13");
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107 |
dasu |
1.1 |
}
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108 |
dasu |
1.6 |
else if(strncmp(argv[1], "Ten", 3) == 0)
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109 |
dasu |
1.1 |
{
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110 |
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pythia.readString("Top:all = on");
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111 |
dasu |
1.6 |
pythia.readString("24:onMode = 2"); // W+ decays to electron
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112 |
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pythia.readString("24:onIfAny = 11");
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113 |
dasu |
1.1 |
}
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114 |
dasu |
1.6 |
else if(strncmp(argv[1], "Tmn", 3) == 0)
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115 |
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{
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116 |
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pythia.readString("Top:all = on");
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117 |
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pythia.readString("24:onMode = 2"); // W+ decays to muon
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118 |
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pythia.readString("24:onIfAny = 13");
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119 |
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}
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120 |
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else if(strncmp(argv[1], "ZHmmbb", 6) == 0)
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121 |
dasu |
1.3 |
{
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122 |
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pythia.readString("HiggsSM:ffbar2HZ = on");
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123 |
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pythia.readString("25:m0 = 120");
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124 |
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pythia.readString("25:onMode = 0"); // Higgs decays to bbBar only
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125 |
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pythia.readString("25:onIfAny = 5");
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126 |
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pythia.readString("23:onMode = 0"); // Z decays to mu+,mu- only (for trigger)
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pythia.readString("23:onIfAny = 13");
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128 |
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}
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129 |
dasu |
1.6 |
else if(strncmp(argv[1], "ZHeebb", 6) == 0)
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130 |
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{
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131 |
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pythia.readString("HiggsSM:ffbar2HZ = on");
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132 |
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pythia.readString("25:m0 = 120");
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133 |
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pythia.readString("25:onMode = 0"); // Higgs decays to bbBar only
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134 |
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pythia.readString("25:onIfAny = 5");
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135 |
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pythia.readString("23:onMode = 0"); // Z decays to e+,e- only (for trigger)
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136 |
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pythia.readString("23:onIfAny = 11");
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137 |
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}
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138 |
dasu |
1.3 |
else if(strncmp(argv[1], "BB", 2) == 0)
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139 |
dasu |
1.1 |
{
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140 |
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pythia.readString("Higgs:useBSM = on");
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141 |
dasu |
1.3 |
pythia.readString("25:m0 = 129");
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142 |
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pythia.readString("35:m0 = 499.7");
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143 |
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pythia.readString("36:m0 = 500");
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144 |
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pythia.readString("37:m0 = 506");
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145 |
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pythia.readString("HiggsHchg:tanBeta = 30");
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146 |
dasu |
1.6 |
if(strncmp(argv[1], "BBH", 3) == 0) {
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147 |
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pythia.readString("HiggsBSM:gg2H2bbbar = on");
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148 |
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pythia.readString("35:onMode = 0"); // H2(H_2) decays only to tau-pairs
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149 |
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pythia.readString("35:onIfAny = 15");
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150 |
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}
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151 |
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else {
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152 |
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pythia.readString("HiggsBSM:gg2A3bbbar = on");
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153 |
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pythia.readString("36:onMode = 0"); // A0(H_3) decays only to tau-pairs
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154 |
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pythia.readString("36:onIfAny = 15");
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155 |
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}
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156 |
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if(strncmp(argv[1], "BBHmh", 5) == 0 ||
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157 |
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strncmp(argv[1], "BBAmh", 5) == 0) {
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158 |
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pythia.readString("15:onMode = 2"); // tau- decays to muons - second tau decays in all modes
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159 |
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pythia.readString("15:onIfAny = 13");
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160 |
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}
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161 |
dasu |
1.1 |
}
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162 |
dasu |
1.9 |
else if(strncmp(argv[1], "ZZmmbb", 6) == 0)
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163 |
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{
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164 |
dasu |
1.10 |
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
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165 |
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pythia.readString("23:onMode = 0");
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166 |
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pythia.readString("23:onIfAny = 5 13"); // Let the Z decay to bQuarks or muons
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167 |
dasu |
1.9 |
}
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168 |
dasu |
1.1 |
else
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169 |
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{
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170 |
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cerr << "Unknown process type " << argv[1] << " - aborting" << endl;
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171 |
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exit(1);
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172 |
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}
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173 |
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}
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174 |
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175 |
dasu |
1.10 |
string name(argv[1]);
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176 |
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name += ".root";
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177 |
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TFile *outFile = TFile::Open(name.c_str(), "recreate");
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178 |
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179 |
dasu |
1.1 |
// Initialize pythia
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180 |
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181 |
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pythia.init( 2212, 2212, 14000.);
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182 |
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pythia.particleData.listAll();
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183 |
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Rndm * rndmPtr = &pythia.rndm;
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184 |
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rndmPtr->init(runNumber);
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185 |
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186 |
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// Pileup pythia
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187 |
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188 |
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Pythia pileupPythia;
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189 |
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pileupPythia.readString("SoftQCD:minBias = on");
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190 |
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pileupPythia.init( 2212, 2212, 14000.);
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191 |
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pileupPythia.rndm.init(runNumber);
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192 |
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193 |
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// Ultra Fast Simulator
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194 |
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195 |
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UltraFastSim ufs(rndmPtr);
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196 |
dasu |
1.10 |
bbHAnalysis bbH(outFile, &pythia, &ufs, true);
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197 |
dasu |
1.11 |
ZHAnalysis ZH; // outFile, &pythia, &ufs, true);
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198 |
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ZH.BookTree();
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199 |
dasu |
1.1 |
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200 |
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// Begin event loop
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201 |
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for (int iEvent = 0; iEvent < nEvents; ) {
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202 |
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203 |
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// Generate event. Skip if error. List first one.
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204 |
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if (!pythia.next()) continue;
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205 |
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206 |
dasu |
1.4 |
if(iEvent < 10) pythia.event.list();
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207 |
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208 |
dasu |
1.1 |
// Add pileup
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209 |
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210 |
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int pileupEventCount = 0;
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211 |
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if(meanPileupEventCount > 0) pileupEventCount = meanPileupEventCount; // * rmdmPtr->pois(); (not available yet)
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212 |
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for (int puEvent = 0; puEvent < pileupEventCount; ) {
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213 |
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if(!pileupPythia.next()) continue;
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214 |
dasu |
1.11 |
double vx = rndmPtr->gauss()*2.; // Mean beam spread is 2 mm in x-y and 75 mm in z
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215 |
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double vy = rndmPtr->gauss()*2.;
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216 |
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double vz = rndmPtr->gauss()*75.;
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217 |
dasu |
1.1 |
for(int i = 0; i < pileupPythia.event.size(); i++) {
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218 |
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Particle& particle = pileupPythia.event[i];
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219 |
dasu |
1.11 |
particle.xProd(vx+particle.xProd());
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220 |
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particle.yProd(vy+particle.yProd());
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221 |
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particle.zProd(vz+particle.zProd());
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222 |
dasu |
1.1 |
if(particle.status() > 0) {
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223 |
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if(particle.isVisible()) {
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224 |
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if(particle.pT() > 0.5) {
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225 |
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pythia.event.append(particle);
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226 |
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}
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227 |
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}
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228 |
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}
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229 |
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}
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230 |
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puEvent++;
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231 |
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}
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232 |
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233 |
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// Ultra fast simulation
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234 |
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|
235 |
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if(!ufs.run(pythia.event))
|
236 |
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{
|
237 |
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cerr << "Ultra fast simulation failed - aborting" << endl;
|
238 |
|
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exit(1);
|
239 |
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}
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240 |
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|
241 |
dasu |
1.10 |
// Run bbHAnalysis
|
242 |
dasu |
1.5 |
|
243 |
dasu |
1.10 |
if(!bbH.run())
|
244 |
dasu |
1.5 |
{
|
245 |
dasu |
1.10 |
cerr << "bbH Analysis failed - aborting" << endl;
|
246 |
dasu |
1.5 |
exit(2);
|
247 |
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}
|
248 |
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|
249 |
dasu |
1.10 |
// Run ZHAnalysis
|
250 |
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|
251 |
dasu |
1.11 |
if(!ZH.Run(&ufs))
|
252 |
dasu |
1.10 |
{
|
253 |
|
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cerr << "ZH Analysis failed - aborting" << endl;
|
254 |
|
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exit(3);
|
255 |
|
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}
|
256 |
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|
257 |
dasu |
1.1 |
// End of event loop. Statistics. Histogram. Done.
|
258 |
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|
259 |
|
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if(!(iEvent % 100)) cout << "Processed event " << iEvent << endl;
|
260 |
|
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iEvent++;
|
261 |
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|
262 |
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}
|
263 |
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|
264 |
|
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// Save output
|
265 |
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|
266 |
|
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pythia.statistics();
|
267 |
|
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pileupPythia.statistics();
|
268 |
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|
269 |
dasu |
1.10 |
bbH.end();
|
270 |
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|
271 |
|
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outFile->cd();
|
272 |
|
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outFile->Write();
|
273 |
|
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outFile->Close();
|
274 |
|
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|
275 |
dasu |
1.1 |
return 0;
|
276 |
|
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|
277 |
|
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}
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