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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
#include "Rivet/Projections/VisibleFinalState.hh"
#include "Rivet/Projections/IdentifiedFinalState.hh"
#include "Rivet/Projections/VetoedFinalState.hh"
#include "Rivet/Projections/FastJets.hh"
namespace Rivet {
/// Single-lepton search for supersymmetry
class ATLAS_2011_S9212353 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(ATLAS_2011_S9212353);
/// @name Analysis methods
//@{
/// Book histograms and initialize projections before the run
void init() {
// projection to find the electrons
IdentifiedFinalState elecs(Cuts::abseta < 2.47 && Cuts::pT > 20*GeV);
elecs.acceptIdPair(PID::ELECTRON);
declare(elecs, "elecs");
// veto region electrons (from 2010 arXiv:1102.2357v2)
Cut vetocut = Cuts::absetaIn(1.37, 1.52);
IdentifiedFinalState veto_elecs(vetocut && Cuts::pT > 10*GeV);
veto_elecs.acceptIdPair(PID::ELECTRON);
declare(veto_elecs, "veto_elecs");
// projection to find the muons
IdentifiedFinalState muons(Cuts::abseta < 2.4 && Cuts::pT > 10*GeV);
muons.acceptIdPair(PID::MUON);
declare(muons, "muons");
// Jet finder
VetoedFinalState vfs;
vfs.addVetoPairId(PID::MUON);
declare(FastJets(vfs, FastJets::ANTIKT, 0.4), "AntiKtJets04");
// all tracks (to do deltaR with leptons)
declare(ChargedFinalState(Cuts::abseta < 3 && Cuts::pT > 0.5*GeV), "cfs");
// for pTmiss
declare(VisibleFinalState(Cuts::abseta < 4.5),"vfs");
/// Book histograms
book(_3jl_count_mu_channel ,"3jl_count_muon_channel", 1, 0., 1.);
book(_3jl_count_e_channel ,"3jl_count_electron_channel", 1, 0., 1.);
book(_3jt_count_mu_channel ,"3jt_count_muon_channel", 1, 0., 1.);
book(_3jt_count_e_channel ,"3jt_count_electron_channel", 1, 0., 1.);
book(_3j_hist_eTmiss_e ,"3j_Et_miss_e", 65, 0., 650.);
book(_3j_hist_eTmiss_mu ,"3j_Et_miss_mu", 65, 0., 650.);
book(_3j_hist_mT_e ,"3j_mT_e", 58, 0., 580.);
book(_3j_hist_mT_mu ,"3j_mT_mu", 58, 0., 580.);
book(_3j_hist_m_eff_e ,"3j_m_eff_e", 46, 0., 2300.);
book(_3j_hist_m_eff_mu ,"3j_m_eff_mu", 46, 0., 2300.);
book(_3jl_hist_m_eff_e_final ,"3jl_m_eff_e_final", 15, 0., 1500.);
book(_3jl_hist_m_eff_mu_final ,"3jl_m_eff_mu_final", 15, 0., 1500.);
book(_3jt_hist_m_eff_e_final ,"3jt_m_eff_e_final", 15, 0., 1500.);
book(_3jt_hist_m_eff_mu_final ,"3jt_m_eff_mu_final", 15, 0., 1500.);
book(_4jl_count_mu_channel ,"4jl_count_muon_channel", 1, 0., 1.);
book(_4jl_count_e_channel ,"4jl_count_electron_channel", 1, 0., 1.);
book(_4jt_count_mu_channel ,"4jt_count_muon_channel", 1, 0., 1.);
book(_4jt_count_e_channel ,"4jt_count_electron_channel", 1, 0., 1.);
book(_4j_hist_eTmiss_e ,"4j_Et_miss_e", 65, 0., 650.);
book(_4j_hist_eTmiss_mu ,"4j_Et_miss_mu", 65, 0., 650.);
book(_4j_hist_mT_e ,"4j_mT_e", 58, 0., 580.);
book(_4j_hist_mT_mu ,"4j_mT_mu", 58, 0., 580.);
book(_4j_hist_m_eff_e ,"4j_m_eff_e", 46, 0., 2300.);
book(_4j_hist_m_eff_mu ,"4j_m_eff_mu", 46, 0., 2300.);
book(_4jl_hist_m_eff_e_final ,"4jl_m_eff_e_final", 15, 0., 1500.);
book(_4jl_hist_m_eff_mu_final ,"4jl_m_eff_mu_final", 15, 0., 1500.);
book(_4jt_hist_m_eff_e_final ,"4jt_m_eff_e_final", 15, 0., 1500.);
book(_4jt_hist_m_eff_mu_final ,"4jt_m_eff_mu_final", 15, 0., 1500.);
}
/// Perform the per-event analysis
void analyze(const Event& event) {
const double weight = 1.0;
Particles veto_e
= apply<IdentifiedFinalState>(event, "veto_elecs").particles();
if ( ! veto_e.empty() ) {
MSG_DEBUG("electrons in veto region");
vetoEvent;
}
Jets cand_jets;
for ( const Jet& jet :
apply<FastJets>(event, "AntiKtJets04").jetsByPt(20.0*GeV) ) {
if ( fabs( jet.eta() ) < 2.8 ) {
cand_jets.push_back(jet);
}
}
Particles candtemp_e =
apply<IdentifiedFinalState>(event, "elecs").particlesByPt();
Particles candtemp_mu =
apply<IdentifiedFinalState>(event,"muons").particlesByPt();
Particles chg_tracks =
apply<ChargedFinalState>(event, "cfs").particles();
Particles cand_mu;
Particles cand_e;
// pTcone around muon track
for ( const Particle & mu : candtemp_mu ) {
double pTinCone = -mu.pT();
for ( const Particle & track : chg_tracks ) {
if ( deltaR(mu.momentum(),track.momentum()) < 0.2 )
pTinCone += track.pT();
}
if ( pTinCone < 1.8*GeV )
cand_mu.push_back(mu);
}
// pTcone around electron
for ( const Particle & e : candtemp_e ) {
double pTinCone = -e.pT();
for ( const Particle & track : chg_tracks ) {
if ( deltaR(e.momentum(),track.momentum()) < 0.2 )
pTinCone += track.pT();
}
if ( pTinCone < 0.1 * e.pT() )
cand_e.push_back(e);
}
// discard jets that overlap with electrons
Jets recon_jets;
for ( const Jet& jet : cand_jets ) {
bool away_from_e = true;
for ( const Particle & e : cand_e ) {
if ( deltaR(e.momentum(),jet.momentum()) < 0.2 ) {
away_from_e = false;
break;
}
}
if ( away_from_e )
recon_jets.push_back( jet );
}
// only consider leptons far from jet
Particles recon_e, recon_mu;
for ( const Particle & e : cand_e ) {
bool e_near_jet = false;
for ( const Jet& jet : recon_jets ) {
if ( deltaR(e.momentum(),jet.momentum()) < 0.4 &&
deltaR(e.momentum(),jet.momentum()) > 0.2 )
e_near_jet = true;
}
if ( ! e_near_jet )
recon_e.push_back( e );
}
for ( const Particle & mu : cand_mu ) {
bool mu_near_jet = false;
for ( const Jet& jet : recon_jets ) {
if ( deltaR(mu.momentum(),jet.momentum()) < 0.4 )
mu_near_jet = true;
}
if ( ! mu_near_jet )
recon_mu.push_back( mu );
}
// pTmiss
Particles vfs_particles
= apply<VisibleFinalState>(event, "vfs").particles();
FourMomentum pTmiss;
for ( const Particle & p : vfs_particles ) {
pTmiss -= p.momentum();
}
double eTmiss = pTmiss.pT();
// ==================== observables ====================
// Njets
int Njets = 0;
double pTmiss_phi = pTmiss.phi();
for ( const Jet& jet : recon_jets ) {
if ( jet.abseta() < 2.8 )
Njets+=1;
}
if ( Njets < 3 ) {
MSG_DEBUG("Only " << Njets << " jets w/ eta<2.8 left");
vetoEvent;
}
Particles lepton;
if ( recon_mu.empty() && recon_e.empty() ) {
MSG_DEBUG("No leptons");
vetoEvent;
}
else {
for ( const Particle & mu : recon_mu )
lepton.push_back(mu);
for ( const Particle & e : recon_e )
lepton.push_back(e);
}
std::sort(lepton.begin(), lepton.end(), cmpMomByPt);
double e_id = 11;
double mu_id = 13;
// one hard leading lepton cut
if ( lepton[0].abspid() == e_id &&
lepton[0].pT() <= 25*GeV ) {
vetoEvent;
}
else if ( lepton[0].abspid() == mu_id &&
lepton[0].pT() <= 20*GeV ) {
vetoEvent;
}
// exactly one hard leading lepton cut
if(lepton.size()>1) {
if ( lepton[1].abspid() == e_id &&
lepton[1].pT() > 20*GeV ) {
vetoEvent;
}
else if ( lepton[1].abspid() == mu_id &&
lepton[1].pT() > 10*GeV ) {
vetoEvent;
}
}
// 3JL
if ( recon_jets[0].pT() > 60.0*GeV &&
recon_jets[1].pT() > 25.0*GeV &&
recon_jets[2].pT() > 25.0*GeV &&
deltaPhi( pTmiss_phi, recon_jets[0].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[1].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[2].phi() ) > 0.2 ) {
FourMomentum pT_l = lepton[0].momentum();
double dPhi = deltaPhi( pT_l.phi(), pTmiss_phi);
double mT = sqrt( 2 * pT_l.pT() * eTmiss * (1 - cos(dPhi)) );
double m_eff = eTmiss + pT_l.pT()
+ recon_jets[0].pT()
+ recon_jets[1].pT()
+ recon_jets[2].pT();
if ( lepton[0].abspid() == e_id ) {
_3j_hist_mT_e->fill(mT, weight);
_3j_hist_eTmiss_e->fill(eTmiss, weight);
_3j_hist_m_eff_e->fill(m_eff, weight);
if ( mT > 100*GeV && eTmiss > 125*GeV ) {
_3jl_hist_m_eff_e_final->fill(m_eff, weight);
if ( m_eff > 500*GeV && eTmiss > 0.25*m_eff ) {
_3jl_count_e_channel->fill(0.5,weight);
}
}
}
else if ( lepton[0].abspid() == mu_id ) {
_3j_hist_mT_mu->fill(mT, weight);
_3j_hist_eTmiss_mu->fill(eTmiss, weight);
_3j_hist_m_eff_mu->fill(m_eff, weight);
if ( mT > 100*GeV && eTmiss > 125*GeV ) {
_3jl_hist_m_eff_mu_final->fill(m_eff, weight);
if ( m_eff > 500*GeV && eTmiss > 0.25*m_eff ) {
_3jl_count_mu_channel->fill(0.5,weight);
}
}
}
}
// 3JT
if ( recon_jets[0].pT() > 80.0*GeV &&
recon_jets[1].pT() > 25.0*GeV &&
recon_jets[2].pT() > 25.0*GeV &&
deltaPhi( pTmiss_phi, recon_jets[0].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[1].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[2].phi() ) > 0.2 ) {
FourMomentum pT_l = lepton[0].momentum();
double dPhi = deltaPhi( pT_l.phi(), pTmiss_phi);
double mT = sqrt( 2 * pT_l.pT() * eTmiss * (1 - cos(dPhi)) );
double m_eff = eTmiss + pT_l.pT()
+ recon_jets[0].pT()
+ recon_jets[1].pT()
+ recon_jets[2].pT();
if ( lepton[0].abspid() == e_id ) {
if ( mT > 100*GeV && eTmiss > 240*GeV ) {
_3jt_hist_m_eff_e_final->fill(m_eff, weight);
if ( m_eff > 600*GeV && eTmiss > 0.15*m_eff ) {
_3jt_count_e_channel->fill(0.5,weight);
}
}
}
else if ( lepton[0].abspid() == mu_id ) {
if ( mT > 100*GeV && eTmiss > 240*GeV ) {
_3jt_hist_m_eff_mu_final->fill(m_eff, weight);
if ( m_eff > 600*GeV && eTmiss > 0.15*m_eff ) {
_3jt_count_mu_channel->fill(0.5,weight);
}
}
}
}
if ( Njets < 4 ) {
MSG_DEBUG("Only " << Njets << " jets w/ eta<2.8 left");
vetoEvent;
}
// 4JL
if ( recon_jets[0].pT() > 60.0*GeV &&
recon_jets[1].pT() > 25.0*GeV &&
recon_jets[2].pT() > 25.0*GeV &&
recon_jets[3].pT() > 25.0*GeV &&
deltaPhi( pTmiss_phi, recon_jets[0].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[1].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[2].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[3].phi() ) > 0.2 ) {
FourMomentum pT_l = lepton[0].momentum();
double dPhi = deltaPhi( pT_l.phi(), pTmiss_phi);
double mT = sqrt( 2 * pT_l.pT() * eTmiss * (1 - cos(dPhi)) );
double m_eff = eTmiss + pT_l.pT()
+ recon_jets[0].pT()
+ recon_jets[1].pT()
+ recon_jets[2].pT()
+ recon_jets[3].pT();
if ( lepton[0].abspid() == e_id ) {
_4j_hist_mT_e->fill(mT, weight);
_4j_hist_eTmiss_e->fill(eTmiss, weight);
_4j_hist_m_eff_e->fill(m_eff, weight);
if ( mT > 100*GeV && eTmiss > 140*GeV ) {
_4jl_hist_m_eff_e_final->fill(m_eff, weight);
if ( m_eff > 300*GeV && eTmiss > 0.3*m_eff ) {
_4jl_count_e_channel->fill(0.5,weight);
}
}
}
// Muon channel signal region
else if ( lepton[0].abspid() == mu_id ) {
_4j_hist_mT_mu->fill(mT, weight);
_4j_hist_eTmiss_mu->fill(eTmiss, weight);
_4j_hist_m_eff_mu->fill(m_eff, weight);
if ( mT > 100*GeV && eTmiss > 140*GeV ) {
_4jl_hist_m_eff_mu_final->fill(m_eff, weight);
if ( m_eff > 300*GeV && eTmiss > 0.3*m_eff ) {
_4jl_count_mu_channel->fill(0.5,weight);
}
}
}
}
// 4JT
if ( recon_jets[0].pT() > 60.0*GeV &&
recon_jets[1].pT() > 40.0*GeV &&
recon_jets[2].pT() > 40.0*GeV &&
recon_jets[3].pT() > 40.0*GeV &&
deltaPhi( pTmiss_phi, recon_jets[0].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[1].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[2].phi() ) > 0.2 &&
deltaPhi( pTmiss_phi, recon_jets[3].phi() ) > 0.2 ) {
FourMomentum pT_l = lepton[0].momentum();
double m_eff = eTmiss + pT_l.pT()
+ recon_jets[0].pT()
+ recon_jets[1].pT()
+ recon_jets[2].pT()
+ recon_jets[3].pT();
if ( lepton[0].abspid() == e_id ) {
if ( eTmiss > 200*GeV ) {
_4jt_hist_m_eff_e_final->fill(m_eff, weight);
if ( m_eff > 500*GeV && eTmiss > 0.15*m_eff ) {
_4jt_count_e_channel->fill(0.5,weight);
}
}
}
// Muon channel signal region
else if ( lepton[0].abspid() == mu_id ) {
if ( eTmiss > 200*GeV ) {
_4jt_hist_m_eff_mu_final->fill(m_eff, weight);
if ( m_eff > 500*GeV && eTmiss > 0.15*m_eff ) {
_4jt_count_mu_channel->fill(0.5,weight);
}
}
}
}
}
//@}
void finalize() {
scale( _3j_hist_eTmiss_e, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3j_hist_eTmiss_mu, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3j_hist_m_eff_e, 50. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3j_hist_m_eff_mu, 50. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3j_hist_mT_e, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3j_hist_mT_mu, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3jl_hist_m_eff_e_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3jl_hist_m_eff_mu_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3jt_hist_m_eff_e_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _3jt_hist_m_eff_mu_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_eTmiss_e, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_eTmiss_mu, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_m_eff_e, 50. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_m_eff_mu, 50. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_mT_e, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4j_hist_mT_mu, 10. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4jl_hist_m_eff_e_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4jl_hist_m_eff_mu_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4jt_hist_m_eff_e_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
scale( _4jt_hist_m_eff_mu_final, 100. * 1.04e3 * crossSection()/sumOfWeights() );
}
private:
/// @name Histograms
//@{
Histo1DPtr _3jl_count_e_channel;
Histo1DPtr _3jl_count_mu_channel;
Histo1DPtr _3jt_count_e_channel;
Histo1DPtr _3jt_count_mu_channel;
Histo1DPtr _3j_hist_eTmiss_e;
Histo1DPtr _3j_hist_eTmiss_mu;
Histo1DPtr _3j_hist_m_eff_e;
Histo1DPtr _3j_hist_m_eff_mu;
Histo1DPtr _3j_hist_mT_e;
Histo1DPtr _3j_hist_mT_mu;
Histo1DPtr _3jl_hist_m_eff_e_final;
Histo1DPtr _3jl_hist_m_eff_mu_final;
Histo1DPtr _3jt_hist_m_eff_e_final;
Histo1DPtr _3jt_hist_m_eff_mu_final;
Histo1DPtr _4jl_count_e_channel;
Histo1DPtr _4jl_count_mu_channel;
Histo1DPtr _4jt_count_e_channel;
Histo1DPtr _4jt_count_mu_channel;
Histo1DPtr _4j_hist_eTmiss_e;
Histo1DPtr _4j_hist_eTmiss_mu;
Histo1DPtr _4j_hist_m_eff_e;
Histo1DPtr _4j_hist_m_eff_mu;
Histo1DPtr _4j_hist_mT_e;
Histo1DPtr _4j_hist_mT_mu;
Histo1DPtr _4jl_hist_m_eff_e_final;
Histo1DPtr _4jl_hist_m_eff_mu_final;
Histo1DPtr _4jt_hist_m_eff_e_final;
Histo1DPtr _4jt_hist_m_eff_mu_final;
//@}
};
RIVET_DECLARE_ALIASED_PLUGIN(ATLAS_2011_S9212353, ATLAS_2011_I930005);
}
|