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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/VetoedFinalState.hh"
#include "Rivet/Projections/PromptFinalState.hh"
#include "Rivet/Projections/InvMassFinalState.hh"
#include "Rivet/Projections/MissingMomentum.hh"
#include "Rivet/Projections/WFinder.hh"
#include "Rivet/Projections/DressedLeptons.hh"
namespace Rivet {
/// @brief Differential cross-section of W bosons + jets in pp collisions at sqrt(s)=7 TeV
/// @author Darin Baumgartel (darinb@cern.ch)
///
/// Based on Rivet analysis originally created by Anil Singh (anil@cern.ch), Lovedeep Saini (lovedeep@cern.ch)
class CMS_2014_I1303894 : public Analysis {
public:
/// Constructor
CMS_2014_I1303894()
: Analysis("CMS_2014_I1303894")
{ }
// Book histograms and initialise projections before the run
void init() {
// Prompt leptons only, no test on nu flavour.
// Projections
const FinalState fs;
declare(fs, "FS");
MissingMomentum missing(fs);
declare(missing, "MET");
PromptFinalState pfs(fs);
IdentifiedFinalState bareMuons(pfs);
bareMuons.acceptIdPair(PID::MUON);
DressedLeptons muonClusters(fs, bareMuons, -1); //, Cuts::open(), false, false);
declare(muonClusters, "muonClusters");
IdentifiedFinalState neutrinos(pfs);
neutrinos.acceptIdPair(PID::NU_MU);
declare(neutrinos, "neutrinos");
VetoedFinalState jetFS(fs);
jetFS.addVetoOnThisFinalState(muonClusters);
jetFS.addVetoOnThisFinalState(neutrinos);
jetFS.vetoNeutrinos();
FastJets jetprojection(jetFS, FastJets::ANTIKT, 0.5);
declare(jetprojection, "Jets");
// Histograms
book(_histDPhiMuJet1 ,1,1,1);
book(_histDPhiMuJet2 ,2,1,1);
book(_histDPhiMuJet3 ,3,1,1);
book(_histDPhiMuJet4 ,4,1,1);
book(_histEtaJet1 ,5,1,1);
book(_histEtaJet2 ,6,1,1);
book(_histEtaJet3 ,7,1,1);
book(_histEtaJet4 ,8,1,1);
book(_histHT1JetInc ,9,1,1);
book(_histHT2JetInc ,10,1,1);
book(_histHT3JetInc ,11,1,1);
book(_histHT4JetInc ,12,1,1);
book(_histJet30MultExc ,13,1,1);
book(_histJet30MultInc ,14,1,1);
book(_histPtJet1 ,15,1,1);
book(_histPtJet2 ,16,1,1);
book(_histPtJet3 ,17,1,1);
book(_histPtJet4 ,18,1,1);
// Counters
book(_n_1jet, "n_1jet");
book(_n_2jet, "n_2jet");
book(_n_3jet, "n_3jet");
book(_n_4jet, "n_4jet");
book(_n_inclusivebinsummation, "n_inclusivebinsummation");
}
void analyze(const Event& event) {
// Get the dressed muon
const DressedLeptons& muonClusters = apply<DressedLeptons>(event, "muonClusters");
int nmu = muonClusters.dressedLeptons().size();
if (nmu < 1) vetoEvent;
DressedLepton dressedmuon = muonClusters.dressedLeptons()[0];
if (dressedmuon.momentum().abseta() > 2.1) vetoEvent;
if (dressedmuon.momentum().pT() < 25.0*GeV) vetoEvent;
// Get the muon neutrino
//const Particles& neutrinos = apply<FinalState>(event, "neutrinos").particlesByPt();
// Check that the muon and neutrino are not decay products of tau
if (dressedmuon.constituentLepton().hasAncestor( PID::TAU)) vetoEvent;
if (dressedmuon.constituentLepton().hasAncestor(-PID::TAU)) vetoEvent;
// Get the missing momentum
const MissingMomentum& met = apply<MissingMomentum>(event, "MET");
const double ptmet = met.visibleMomentum().pT();
const double phimet = (-met.visibleMomentum()).phi();
// Calculate MET and MT(mu,MET), and remove events with MT < 50 GeV
const double ptmuon = dressedmuon.pT();
const double phimuon = dressedmuon.phi();
const double mt_mumet = sqrt(2*ptmuon*ptmet*(1.0 - cos(phimet-phimuon)));
// Remove events in MT < 50 region
if (mt_mumet < 50*GeV) vetoEvent;
// Loop over jets and fill pt/eta/phi quantities in vectors
const Jets& jets_filtered = apply<FastJets>(event, "Jets").jetsByPt(0.0*GeV);
vector<float> finaljet_pT_list, finaljet_eta_list, finaljet_phi_list;
double htjets = 0.0;
for (size_t ii = 0; ii < jets_filtered.size(); ++ii) {
// Jet pT/eta/phi
double jet_pt = jets_filtered[ii].pT();
double jet_eta = jets_filtered[ii].eta();
double jet_phi = jets_filtered[ii].phi();
// Kinemetic cuts for jet acceptance
if (fabs(jet_eta) > 2.4) continue;
if (jet_pt < 30.0*GeV) continue;
if (deltaR(dressedmuon, jets_filtered[ii]) < 0.5) continue;
// Add jet to jet list and increases the HT variable
finaljet_pT_list.push_back(jet_pt);
finaljet_eta_list.push_back(jet_eta);
finaljet_phi_list.push_back(jet_phi);
htjets += fabs(jet_pt);
}
// Filling of histograms:
// Fill as many jets as there are into the exclusive jet multiplicity
if (!finaljet_pT_list.empty())
_histJet30MultExc->fill(finaljet_pT_list.size());
for (size_t ij = 0; ij < finaljet_pT_list.size(); ++ij) {
_histJet30MultInc->fill(ij+1);
_n_inclusivebinsummation->fill();
}
if (finaljet_pT_list.size() >= 1) {
_histPtJet1->fill(finaljet_pT_list[0]);
_histEtaJet1->fill(fabs(finaljet_eta_list[0]));
_histDPhiMuJet1->fill(deltaPhi(finaljet_phi_list[0], phimuon));
_histHT1JetInc->fill(htjets);
_n_1jet->fill();
}
if (finaljet_pT_list.size() >= 2) {
_histPtJet2->fill(finaljet_pT_list[1]);
_histEtaJet2->fill(fabs(finaljet_eta_list[1]));
_histDPhiMuJet2->fill(deltaPhi(finaljet_phi_list[1], phimuon));
_histHT2JetInc->fill(htjets);
_n_2jet->fill();
}
if (finaljet_pT_list.size() >= 3) {
_histPtJet3->fill(finaljet_pT_list[2]);
_histEtaJet3->fill(fabs(finaljet_eta_list[2]));
_histDPhiMuJet3->fill(deltaPhi(finaljet_phi_list[2], phimuon));
_histHT3JetInc->fill(htjets);
_n_3jet->fill();
}
if (finaljet_pT_list.size() >=4 ) {
_histPtJet4->fill(finaljet_pT_list[3]);
_histEtaJet4->fill(fabs(finaljet_eta_list[3]));
_histDPhiMuJet4->fill(deltaPhi(finaljet_phi_list[3], phimuon));
_histHT4JetInc-> fill(htjets);
_n_4jet->fill();
}
}
// Finalize the histograms.
void finalize() {
const double inclusive_cross_section = crossSection();
const double norm_1jet_histo = inclusive_cross_section*dbl(*_n_1jet)/sumOfWeights();
const double norm_2jet_histo = inclusive_cross_section*dbl(*_n_2jet)/sumOfWeights();
const double norm_3jet_histo = inclusive_cross_section*dbl(*_n_3jet)/sumOfWeights();
const double norm_4jet_histo = inclusive_cross_section*dbl(*_n_4jet)/sumOfWeights();
const double norm_incmultiplicity = inclusive_cross_section*dbl(*_n_inclusivebinsummation)/sumOfWeights();
normalize(_histJet30MultExc, norm_1jet_histo);
normalize(_histJet30MultInc, norm_incmultiplicity);
normalize(_histPtJet1, norm_1jet_histo);
normalize(_histHT1JetInc, norm_1jet_histo);
normalize(_histEtaJet1, norm_1jet_histo);
normalize(_histDPhiMuJet1, norm_1jet_histo);
normalize(_histPtJet2, norm_2jet_histo);
normalize(_histHT2JetInc, norm_2jet_histo);
normalize(_histEtaJet2, norm_2jet_histo);
normalize(_histDPhiMuJet2, norm_2jet_histo);
normalize(_histPtJet3, norm_3jet_histo);
normalize(_histHT3JetInc, norm_3jet_histo);
normalize(_histEtaJet3, norm_3jet_histo);
normalize(_histDPhiMuJet3, norm_3jet_histo);
normalize(_histPtJet4, norm_4jet_histo);
normalize(_histHT4JetInc, norm_4jet_histo);
normalize(_histEtaJet4, norm_4jet_histo);
normalize(_histDPhiMuJet4, norm_4jet_histo);
}
private:
Histo1DPtr _histJet30MultExc, _histJet30MultInc;
Histo1DPtr _histPtJet1, _histPtJet2, _histPtJet3, _histPtJet4;
Histo1DPtr _histEtaJet1, _histEtaJet2, _histEtaJet3, _histEtaJet4;
Histo1DPtr _histDPhiMuJet1, _histDPhiMuJet2, _histDPhiMuJet3, _histDPhiMuJet4;
Histo1DPtr _histHT1JetInc, _histHT2JetInc, _histHT3JetInc, _histHT4JetInc;
CounterPtr _n_1jet, _n_2jet, _n_3jet, _n_4jet, _n_inclusivebinsummation;
};
RIVET_DECLARE_PLUGIN(CMS_2014_I1303894);
}
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