| 1 |
dasu |
1.1 |
// This simple program generates various signal processes for
|
| 2 |
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// MSSM bbPhi process and its backgrounds.
|
| 3 |
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// It includes the mixing of required level of pileup.
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| 4 |
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// It then takes pythia output and runs it through very simplistic
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| 5 |
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// detector simulation using parameterizations, including making
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| 6 |
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// isolated light leptons, photons, composite tau, jet and b-tagged
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| 7 |
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// jet objects.
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| 8 |
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// It saves the output in root format for later analysis.
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| 9 |
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| 10 |
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using namespace std;
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| 11 |
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#include <math.h>
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| 12 |
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| 13 |
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#include "Pythia.h"
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| 14 |
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using namespace Pythia8;
|
| 15 |
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| 16 |
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#include "UltraFastSim.h"
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| 17 |
dasu |
1.13 |
#include "UFSDataStore.h"
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| 18 |
dasu |
1.1 |
|
| 19 |
dasu |
1.16 |
int poisson(double mean, Rndm *rndmPtr) {
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| 20 |
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static double oldMean = -1;
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| 21 |
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static double g;
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| 22 |
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if(mean != oldMean) {
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| 23 |
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oldMean = mean;
|
| 24 |
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if(mean == 0) {
|
| 25 |
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g = 0;
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| 26 |
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}
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| 27 |
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else {
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| 28 |
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g = exp(-mean);
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| 29 |
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}
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| 30 |
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}
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| 31 |
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double em = -1;
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| 32 |
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double t = 1;
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| 33 |
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do {
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| 34 |
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em++;
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| 35 |
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t *= rndmPtr->flat();
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| 36 |
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} while(t > g);
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| 37 |
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return em;
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| 38 |
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}
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| 39 |
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| 40 |
dasu |
1.1 |
int main(int argc, char **argv) {
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| 41 |
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// Generator. Process selection. LHC initialization. Histogram.
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| 42 |
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Pythia pythia;
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| 43 |
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int nEvents = 0;
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| 44 |
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int runNumber = 0;
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| 45 |
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int meanPileupEventCount = 0;
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| 46 |
dasu |
1.18 |
float cmEnergy = 14000.;
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| 47 |
dasu |
1.19 |
bool cutOnMET = false;
|
| 48 |
dasu |
1.18 |
if(argc < 3 || argc > 6)
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| 49 |
dasu |
1.1 |
{
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| 50 |
dasu |
1.18 |
cerr << "Command syntax: " << argv[0] << " ZHmmbb[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 51 |
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cerr << "or " << argv[0] << " ZHeebb[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 52 |
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cerr << "or " << argv[0] << " ZHmmXX[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 53 |
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cerr << "or " << argv[0] << " ZHeeXX[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 54 |
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cerr << "or " << argv[0] << " ZZmmbb[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 55 |
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cerr << "or " << argv[0] << " ZZmmnn[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 56 |
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cerr << "or " << argv[0] << " ZZeebb[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 57 |
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cerr << "or " << argv[0] << " ZZeenn[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 58 |
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cerr << "or " << argv[0] << " BBHmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 59 |
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cerr << "or " << argv[0] << " BBAmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 60 |
dasu |
1.19 |
cerr << "or " << argv[0] << " VBFHXX[..] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 61 |
dasu |
1.18 |
cerr << "or " << argv[0] << " Zee[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 62 |
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cerr << "or " << argv[0] << " Zmm[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 63 |
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cerr << "or " << argv[0] << " Zeh[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 64 |
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cerr << "or " << argv[0] << " Zmh[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 65 |
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cerr << "or " << argv[0] << " Zhh[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 66 |
dasu |
1.19 |
cerr << "or " << argv[0] << " Znn[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 67 |
dasu |
1.18 |
cerr << "or " << argv[0] << " Wen[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 68 |
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cerr << "or " << argv[0] << " Wmn[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 69 |
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cerr << "or " << argv[0] << " Ten[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 70 |
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cerr << "or " << argv[0] << " Tmn[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 71 |
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cerr << "or " << argv[0] << " QCD[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 72 |
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cerr << "or " << argv[0] << " QED[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 73 |
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cerr << "or " << argv[0] << " EWK[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 74 |
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cerr << "or " << argv[0] << " Top[...] " << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 75 |
dasu |
1.19 |
cerr << "or " << argv[0] << " QCDMET[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 76 |
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cerr << "or " << argv[0] << " ZnnMET[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 77 |
dasu |
1.21 |
cerr << "or " << argv[0] << " ZZTo4L[...]" << " <nEvents> [RandomSeed] [meanPileupEventcount] [cmEnergy]" << endl;
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| 78 |
dasu |
1.6 |
cerr << "In above e-electron, m-muon, h-hadronic tau. n-neutrino" << endl;
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| 79 |
dasu |
1.18 |
cerr << "QCD, QED, EWK and Top do not specify the decays -- they are useful for generic BG production" << endl;
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| 80 |
dasu |
1.19 |
cerr << "QCDMET has MET > 50 GeV to make efficient to study QCD MET BG" << endl;
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| 81 |
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cerr << "ZnnMET has MET > 50 GeV to make efficient to study Znn MET BG" << endl;
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| 82 |
dasu |
1.1 |
exit(1);
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| 83 |
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}
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| 84 |
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else {
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| 85 |
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nEvents = atoi(argv[2]);
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| 86 |
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if(argc >= 4) runNumber = atoi(argv[3]);
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| 87 |
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if(argc >= 5) meanPileupEventCount = atoi(argv[4]);
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| 88 |
dasu |
1.18 |
if(argc >= 6) cmEnergy = atof(argv[5]);
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| 89 |
dasu |
1.6 |
if(strncmp(argv[1], "Zee", 3) == 0)
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| 90 |
dasu |
1.1 |
{
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| 91 |
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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| 92 |
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pythia.readString("PhaseSpace:mHatMin = 60.");
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| 93 |
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pythia.readString("PhaseSpace:mHatMax = -1");
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| 94 |
dasu |
1.6 |
pythia.readString("23:onMode = 0"); // Z decays to electrons only
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| 95 |
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pythia.readString("23:onIfAny = 11");
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| 96 |
dasu |
1.1 |
}
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| 97 |
dasu |
1.6 |
else if(strncmp(argv[1], "Zmm", 3) == 0)
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| 98 |
dasu |
1.3 |
{
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| 99 |
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
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| 100 |
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pythia.readString("PhaseSpace:mHatMin = 60.");
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| 101 |
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pythia.readString("PhaseSpace:mHatMax = -1");
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| 102 |
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pythia.readString("23:onMode = 0"); // Z decays to muons only
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| 103 |
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pythia.readString("23:onIfAny = 13");
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| 104 |
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}
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| 105 |
dasu |
1.19 |
else if(strncmp(argv[1], "Znn", 3) == 0)
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| 106 |
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{
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| 107 |
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
|
| 108 |
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pythia.readString("PhaseSpace:mHatMin = 60.");
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| 109 |
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pythia.readString("PhaseSpace:mHatMax = -1");
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| 110 |
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pythia.readString("23:onMode = 0"); // Z decays to neutrinos only
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| 111 |
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pythia.readString("23:onIfAny = 12, 14, 16");
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| 112 |
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if(strncmp(argv[1], "ZnnMET", 6) == 0) {
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| 113 |
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cutOnMET = true;
|
| 114 |
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}
|
| 115 |
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}
|
| 116 |
dasu |
1.6 |
else if(strncmp(argv[1], "Zeh", 3) == 0)
|
| 117 |
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{
|
| 118 |
|
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
|
| 119 |
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pythia.readString("PhaseSpace:mHatMin = 60.");
|
| 120 |
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pythia.readString("PhaseSpace:mHatMax = -1");
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| 121 |
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pythia.readString("23:onMode = 0"); // Z decays to taus only
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| 122 |
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pythia.readString("23:onIfAny = 15");
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| 123 |
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pythia.readString("15:onMode = 2"); // tau- decays to electrons - second tau decays in all modes
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| 124 |
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pythia.readString("15:onIfAny = 11");
|
| 125 |
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}
|
| 126 |
|
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else if(strncmp(argv[1], "Zmh", 3) == 0)
|
| 127 |
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{
|
| 128 |
|
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
|
| 129 |
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pythia.readString("PhaseSpace:mHatMin = 60.");
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| 130 |
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pythia.readString("PhaseSpace:mHatMax = -1");
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| 131 |
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pythia.readString("23:onMode = 0"); // Z decays to taus only
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| 132 |
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pythia.readString("23:onIfAny = 15");
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| 133 |
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pythia.readString("15:onMode = 2"); // tau- decays to muons - second tau decays in all modes
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| 134 |
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pythia.readString("15:onIfAny = 13");
|
| 135 |
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}
|
| 136 |
|
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else if(strncmp(argv[1], "Zhh", 3) == 0)
|
| 137 |
|
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{
|
| 138 |
|
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pythia.readString("WeakSingleBoson:ffbar2gmZ = on");
|
| 139 |
|
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pythia.readString("PhaseSpace:mHatMin = 60.");
|
| 140 |
|
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pythia.readString("PhaseSpace:mHatMax = -1");
|
| 141 |
|
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pythia.readString("23:onMode = 0"); // Z decays to taus only
|
| 142 |
|
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pythia.readString("23:onIfAny = 15");
|
| 143 |
|
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}
|
| 144 |
|
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else if(strncmp(argv[1], "Wen", 3) == 0)
|
| 145 |
|
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{
|
| 146 |
|
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pythia.readString("WeakSingleBoson:ffbar2W = on");
|
| 147 |
|
|
pythia.readString("24:onMode = 0"); // W decays to electron
|
| 148 |
|
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pythia.readString("24:onIfAny = 11");
|
| 149 |
|
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}
|
| 150 |
|
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else if(strncmp(argv[1], "Wmn", 3) == 0)
|
| 151 |
dasu |
1.1 |
{
|
| 152 |
|
|
pythia.readString("WeakSingleBoson:ffbar2W = on");
|
| 153 |
dasu |
1.6 |
pythia.readString("24:onMode = 0"); // W decays to muon
|
| 154 |
|
|
pythia.readString("24:onIfAny = 13");
|
| 155 |
dasu |
1.1 |
}
|
| 156 |
dasu |
1.6 |
else if(strncmp(argv[1], "Ten", 3) == 0)
|
| 157 |
dasu |
1.1 |
{
|
| 158 |
|
|
pythia.readString("Top:all = on");
|
| 159 |
dasu |
1.6 |
pythia.readString("24:onMode = 2"); // W+ decays to electron
|
| 160 |
|
|
pythia.readString("24:onIfAny = 11");
|
| 161 |
dasu |
1.1 |
}
|
| 162 |
dasu |
1.6 |
else if(strncmp(argv[1], "Tmn", 3) == 0)
|
| 163 |
|
|
{
|
| 164 |
|
|
pythia.readString("Top:all = on");
|
| 165 |
|
|
pythia.readString("24:onMode = 2"); // W+ decays to muon
|
| 166 |
|
|
pythia.readString("24:onIfAny = 13");
|
| 167 |
|
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}
|
| 168 |
dasu |
1.20 |
else if(strncmp(argv[1], "HZGamma", 7) == 0)
|
| 169 |
|
|
{
|
| 170 |
|
|
pythia.readString("HiggsSM:all = on");
|
| 171 |
|
|
pythia.readString("25:m0 = 125");
|
| 172 |
|
|
pythia.readString("25:onMode = 0"); // Higgs decays to Zgamma only
|
| 173 |
|
|
pythia.readString("25:onIfMatch = 22 23");
|
| 174 |
|
|
pythia.readString("23:onMode = 0"); // Z decays to light leptons
|
| 175 |
|
|
pythia.readString("23:onIfAny = 11 13");
|
| 176 |
|
|
}
|
| 177 |
dasu |
1.6 |
else if(strncmp(argv[1], "ZHmmbb", 6) == 0)
|
| 178 |
dasu |
1.3 |
{
|
| 179 |
|
|
pythia.readString("HiggsSM:ffbar2HZ = on");
|
| 180 |
dasu |
1.20 |
pythia.readString("25:m0 = 125");
|
| 181 |
dasu |
1.3 |
pythia.readString("25:onMode = 0"); // Higgs decays to bbBar only
|
| 182 |
|
|
pythia.readString("25:onIfAny = 5");
|
| 183 |
|
|
pythia.readString("23:onMode = 0"); // Z decays to mu+,mu- only (for trigger)
|
| 184 |
|
|
pythia.readString("23:onIfAny = 13");
|
| 185 |
|
|
}
|
| 186 |
dasu |
1.18 |
else if(strncmp(argv[1], "ZHmmXX", 6) == 0)
|
| 187 |
|
|
{
|
| 188 |
|
|
pythia.readString("HiggsSM:ffbar2HZ = on");
|
| 189 |
dasu |
1.20 |
pythia.readString("25:m0 = 125");
|
| 190 |
dasu |
1.18 |
pythia.readString("25:mayDecay = false"); // Higgs does not decay -- becomes invisible
|
| 191 |
|
|
pythia.readString("25:isVisible = false");
|
| 192 |
|
|
pythia.readString("23:onMode = 0"); // Z decays to mu+,mu- only (for trigger)
|
| 193 |
|
|
pythia.readString("23:onIfAny = 13");
|
| 194 |
|
|
}
|
| 195 |
dasu |
1.6 |
else if(strncmp(argv[1], "ZHeebb", 6) == 0)
|
| 196 |
|
|
{
|
| 197 |
|
|
pythia.readString("HiggsSM:ffbar2HZ = on");
|
| 198 |
dasu |
1.20 |
pythia.readString("25:m0 = 125");
|
| 199 |
dasu |
1.6 |
pythia.readString("25:onMode = 0"); // Higgs decays to bbBar only
|
| 200 |
|
|
pythia.readString("25:onIfAny = 5");
|
| 201 |
|
|
pythia.readString("23:onMode = 0"); // Z decays to e+,e- only (for trigger)
|
| 202 |
|
|
pythia.readString("23:onIfAny = 11");
|
| 203 |
|
|
}
|
| 204 |
dasu |
1.18 |
else if(strncmp(argv[1], "ZHeeXX", 6) == 0)
|
| 205 |
|
|
{
|
| 206 |
|
|
pythia.readString("HiggsSM:ffbar2HZ = on");
|
| 207 |
dasu |
1.20 |
pythia.readString("25:m0 = 125");
|
| 208 |
dasu |
1.18 |
pythia.readString("25:mayDecay = false"); // Higgs does not decay -- becomes invisible
|
| 209 |
|
|
pythia.readString("25:isVisible = false");
|
| 210 |
|
|
pythia.readString("23:onMode = 0"); // Z decays to mu+,mu- only (for trigger)
|
| 211 |
|
|
pythia.readString("23:onIfAny = 11");
|
| 212 |
|
|
}
|
| 213 |
dasu |
1.3 |
else if(strncmp(argv[1], "BB", 2) == 0)
|
| 214 |
dasu |
1.1 |
{
|
| 215 |
|
|
pythia.readString("Higgs:useBSM = on");
|
| 216 |
dasu |
1.3 |
pythia.readString("25:m0 = 129");
|
| 217 |
|
|
pythia.readString("35:m0 = 499.7");
|
| 218 |
|
|
pythia.readString("36:m0 = 500");
|
| 219 |
|
|
pythia.readString("37:m0 = 506");
|
| 220 |
|
|
pythia.readString("HiggsHchg:tanBeta = 30");
|
| 221 |
dasu |
1.6 |
if(strncmp(argv[1], "BBH", 3) == 0) {
|
| 222 |
|
|
pythia.readString("HiggsBSM:gg2H2bbbar = on");
|
| 223 |
|
|
pythia.readString("35:onMode = 0"); // H2(H_2) decays only to tau-pairs
|
| 224 |
|
|
pythia.readString("35:onIfAny = 15");
|
| 225 |
|
|
}
|
| 226 |
|
|
else {
|
| 227 |
|
|
pythia.readString("HiggsBSM:gg2A3bbbar = on");
|
| 228 |
|
|
pythia.readString("36:onMode = 0"); // A0(H_3) decays only to tau-pairs
|
| 229 |
|
|
pythia.readString("36:onIfAny = 15");
|
| 230 |
|
|
}
|
| 231 |
|
|
if(strncmp(argv[1], "BBHmh", 5) == 0 ||
|
| 232 |
|
|
strncmp(argv[1], "BBAmh", 5) == 0) {
|
| 233 |
|
|
pythia.readString("15:onMode = 2"); // tau- decays to muons - second tau decays in all modes
|
| 234 |
|
|
pythia.readString("15:onIfAny = 13");
|
| 235 |
|
|
}
|
| 236 |
dasu |
1.1 |
}
|
| 237 |
dasu |
1.9 |
else if(strncmp(argv[1], "ZZmmbb", 6) == 0)
|
| 238 |
|
|
{
|
| 239 |
dasu |
1.10 |
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
|
| 240 |
|
|
pythia.readString("23:onMode = 0");
|
| 241 |
|
|
pythia.readString("23:onIfAny = 5 13"); // Let the Z decay to bQuarks or muons
|
| 242 |
dasu |
1.9 |
}
|
| 243 |
dasu |
1.21 |
else if(strncmp(argv[1], "ZZTo4L", 6) == 0)
|
| 244 |
|
|
{
|
| 245 |
|
|
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
|
| 246 |
|
|
pythia.readString("PhaseSpace:mHatMin = 60.");// Start way offshell for the ZZ to catch low M4L
|
| 247 |
|
|
pythia.readString("PhaseSpace:mHatMax = -1");
|
| 248 |
|
|
pythia.readString("23:onMode = 0");
|
| 249 |
|
|
pythia.readString("23:onIfAny = 11 13 15"); // Let the Z decay to charged lepton pairs
|
| 250 |
|
|
}
|
| 251 |
dasu |
1.17 |
else if(strncmp(argv[1], "ZZmmnn", 6) == 0)
|
| 252 |
|
|
{
|
| 253 |
|
|
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
|
| 254 |
|
|
pythia.readString("23:onMode = 0");
|
| 255 |
|
|
pythia.readString("23:onIfAny = 13 12 14 16"); // Let the Z decay to muons or neutrinos
|
| 256 |
|
|
}
|
| 257 |
dasu |
1.18 |
else if(strncmp(argv[1], "ZZeebb", 6) == 0)
|
| 258 |
|
|
{
|
| 259 |
|
|
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
|
| 260 |
|
|
pythia.readString("23:onMode = 0");
|
| 261 |
|
|
pythia.readString("23:onIfAny = 5 11"); // Let the Z decay to bQuarks or electrons
|
| 262 |
|
|
}
|
| 263 |
|
|
else if(strncmp(argv[1], "ZZeenn", 6) == 0)
|
| 264 |
|
|
{
|
| 265 |
|
|
pythia.readString("WeakDoubleBoson:ffbar2gmZgmZ = on");
|
| 266 |
|
|
pythia.readString("23:onMode = 0");
|
| 267 |
|
|
pythia.readString("23:onIfAny = 11 12 14 16"); // Let the Z decay to electrons or neutrinos
|
| 268 |
|
|
}
|
| 269 |
|
|
else if(strncmp(argv[1], "QCD", 3) == 0)
|
| 270 |
|
|
{
|
| 271 |
|
|
pythia.readString("HardQCD:all = on");
|
| 272 |
dasu |
1.19 |
pythia.readString("PhaseSpace:pTHatMin = 50.");
|
| 273 |
|
|
if(strncmp(argv[1], "QCDMET", 6) == 0) {
|
| 274 |
|
|
cutOnMET = true;
|
| 275 |
|
|
}
|
| 276 |
dasu |
1.18 |
}
|
| 277 |
|
|
else if(strcmp(argv[1], "QED") == 0)
|
| 278 |
|
|
{
|
| 279 |
|
|
pythia.readString("PromptPhoton:all = on");
|
| 280 |
|
|
pythia.readString("PhaseSpace:mHatMin = 60.");
|
| 281 |
|
|
pythia.readString("PhaseSpace:mHatMax = -1");
|
| 282 |
|
|
}
|
| 283 |
|
|
else if(strncmp(argv[1], "EWK", 3) == 0)
|
| 284 |
|
|
{
|
| 285 |
|
|
pythia.readString("WeakSingleBoson:all = on");
|
| 286 |
|
|
pythia.readString("PhaseSpace:mHatMin = 60.");
|
| 287 |
|
|
pythia.readString("PhaseSpace:mHatMax = -1");
|
| 288 |
|
|
pythia.readString("WeakDoubleBoson:all = on");
|
| 289 |
|
|
}
|
| 290 |
|
|
else if(strncmp(argv[1], "Top", 3) == 0)
|
| 291 |
|
|
{
|
| 292 |
|
|
pythia.readString("Top:all = on");
|
| 293 |
|
|
}
|
| 294 |
dasu |
1.19 |
else if(strncmp(argv[1], "VBFHXX", 6) == 0)
|
| 295 |
|
|
{
|
| 296 |
|
|
pythia.readString("HiggsSM:ff2Hff(t:ZZ) = on");
|
| 297 |
|
|
pythia.readString("HiggsSM:ff2Hff(t:WW) = on");
|
| 298 |
dasu |
1.20 |
pythia.readString("25:m0 = 125");
|
| 299 |
dasu |
1.19 |
pythia.readString("25:mayDecay = false"); // Higgs does not decay -- becomes invisible
|
| 300 |
|
|
pythia.readString("25:isVisible = false");
|
| 301 |
|
|
}
|
| 302 |
dasu |
1.18 |
else
|
| 303 |
dasu |
1.17 |
{
|
| 304 |
dasu |
1.18 |
cerr << "Unknown process type " << argv[1] << " - aborting" << endl;
|
| 305 |
|
|
exit(1);
|
| 306 |
dasu |
1.17 |
}
|
| 307 |
dasu |
1.1 |
}
|
| 308 |
|
|
|
| 309 |
|
|
// Initialize pythia
|
| 310 |
|
|
|
| 311 |
dasu |
1.18 |
pythia.init(2212, 2212, cmEnergy);
|
| 312 |
dasu |
1.1 |
pythia.particleData.listAll();
|
| 313 |
|
|
Rndm * rndmPtr = &pythia.rndm;
|
| 314 |
|
|
rndmPtr->init(runNumber);
|
| 315 |
|
|
|
| 316 |
|
|
// Pileup pythia
|
| 317 |
|
|
|
| 318 |
|
|
Pythia pileupPythia;
|
| 319 |
|
|
pileupPythia.readString("SoftQCD:minBias = on");
|
| 320 |
|
|
pileupPythia.init( 2212, 2212, 14000.);
|
| 321 |
|
|
pileupPythia.rndm.init(runNumber);
|
| 322 |
|
|
|
| 323 |
|
|
// Ultra Fast Simulator
|
| 324 |
|
|
|
| 325 |
dasu |
1.14 |
UltraFastSim ufs;
|
| 326 |
dasu |
1.15 |
char jobName[256];
|
| 327 |
dasu |
1.16 |
sprintf(jobName, "%s-PU%3.3d-%4.4d", argv[1], meanPileupEventCount, runNumber);
|
| 328 |
dasu |
1.15 |
UFSDataStore dataStore(jobName, &ufs);
|
| 329 |
dasu |
1.1 |
|
| 330 |
|
|
// Begin event loop
|
| 331 |
|
|
for (int iEvent = 0; iEvent < nEvents; ) {
|
| 332 |
|
|
|
| 333 |
|
|
// Generate event. Skip if error. List first one.
|
| 334 |
|
|
if (!pythia.next()) continue;
|
| 335 |
|
|
|
| 336 |
dasu |
1.4 |
if(iEvent < 10) pythia.event.list();
|
| 337 |
|
|
|
| 338 |
dasu |
1.1 |
// Add pileup
|
| 339 |
|
|
|
| 340 |
|
|
int pileupEventCount = 0;
|
| 341 |
dasu |
1.16 |
if(meanPileupEventCount > 0) pileupEventCount = poisson(meanPileupEventCount, rndmPtr);
|
| 342 |
dasu |
1.1 |
for (int puEvent = 0; puEvent < pileupEventCount; ) {
|
| 343 |
|
|
if(!pileupPythia.next()) continue;
|
| 344 |
dasu |
1.11 |
double vx = rndmPtr->gauss()*2.; // Mean beam spread is 2 mm in x-y and 75 mm in z
|
| 345 |
|
|
double vy = rndmPtr->gauss()*2.;
|
| 346 |
|
|
double vz = rndmPtr->gauss()*75.;
|
| 347 |
dasu |
1.1 |
for(int i = 0; i < pileupPythia.event.size(); i++) {
|
| 348 |
|
|
Particle& particle = pileupPythia.event[i];
|
| 349 |
dasu |
1.11 |
particle.xProd(vx+particle.xProd());
|
| 350 |
|
|
particle.yProd(vy+particle.yProd());
|
| 351 |
|
|
particle.zProd(vz+particle.zProd());
|
| 352 |
dasu |
1.1 |
if(particle.status() > 0) {
|
| 353 |
|
|
if(particle.isVisible()) {
|
| 354 |
|
|
if(particle.pT() > 0.5) {
|
| 355 |
|
|
pythia.event.append(particle);
|
| 356 |
|
|
}
|
| 357 |
|
|
}
|
| 358 |
|
|
}
|
| 359 |
|
|
}
|
| 360 |
|
|
puEvent++;
|
| 361 |
|
|
}
|
| 362 |
|
|
|
| 363 |
|
|
// Ultra fast simulation
|
| 364 |
|
|
|
| 365 |
dasu |
1.14 |
if(!ufs.run(pythia.event, rndmPtr))
|
| 366 |
dasu |
1.1 |
{
|
| 367 |
|
|
cerr << "Ultra fast simulation failed - aborting" << endl;
|
| 368 |
|
|
exit(1);
|
| 369 |
|
|
}
|
| 370 |
|
|
|
| 371 |
dasu |
1.19 |
// If necessary, check MET and decide to store or not
|
| 372 |
|
|
|
| 373 |
|
|
bool doStore = true;
|
| 374 |
|
|
if(cutOnMET) {
|
| 375 |
|
|
double MET = ufs.getMET().Pt();
|
| 376 |
|
|
if(MET < 50.) {
|
| 377 |
|
|
doStore = false;
|
| 378 |
|
|
}
|
| 379 |
|
|
}
|
| 380 |
dasu |
1.13 |
// Store data
|
| 381 |
dasu |
1.5 |
|
| 382 |
dasu |
1.19 |
if(doStore && !dataStore.run())
|
| 383 |
dasu |
1.5 |
{
|
| 384 |
dasu |
1.13 |
cerr << "Failed to store data" << endl;
|
| 385 |
|
|
exit(3);
|
| 386 |
dasu |
1.5 |
}
|
| 387 |
|
|
|
| 388 |
dasu |
1.1 |
// End of event loop. Statistics. Histogram. Done.
|
| 389 |
|
|
|
| 390 |
|
|
if(!(iEvent % 100)) cout << "Processed event " << iEvent << endl;
|
| 391 |
|
|
iEvent++;
|
| 392 |
|
|
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
// Save output
|
| 396 |
|
|
|
| 397 |
|
|
pythia.statistics();
|
| 398 |
|
|
pileupPythia.statistics();
|
| 399 |
|
|
|
| 400 |
|
|
return 0;
|
| 401 |
|
|
|
| 402 |
|
|
}
|
