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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/PromptFinalState.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/Sphericity.hh"
#include "Rivet/Projections/SmearedParticles.hh"
#include "Rivet/Projections/SmearedJets.hh"
#include "Rivet/Projections/SmearedMET.hh"
#include "Rivet/Tools/Cutflow.hh"
namespace Rivet {
/// @brief ATLAS 2016 1-lepton SUSY search, from 14.8/fb CONF note
class ATLAS_2016_CONF_2016_054 : public Analysis {
public:
/// Constructor
RIVET_DEFAULT_ANALYSIS_CTOR(ATLAS_2016_CONF_2016_054);
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Initialise and register projections
FinalState calofs(Cuts::abseta < 4.9);
FastJets fj(calofs, FastJets::ANTIKT, 0.4);
declare(fj, "TruthJets");
declare(SmearedJets(fj, JET_SMEAR_ATLAS_RUN2, [](const Jet& j) {
if (j.abseta() > 2.5) return 0.;
return j.bTagged(Cuts::pT > 5*GeV) ? 0.77 :
j.cTagged(Cuts::pT > 5*GeV) ? 1/6.2 : 1/134.; }), "Jets");
MissingMomentum mm(calofs);
declare(mm, "TruthMET");
declare(SmearedMET(mm, MET_SMEAR_ATLAS_RUN2), "MET");
FinalState es(Cuts::abseta < 2.47 && Cuts::pT > 7*GeV && Cuts::abspid == PID::ELECTRON);
declare(es, "TruthElectrons");
declare(SmearedParticles(es, ELECTRON_RECOEFF_ATLAS_RUN2, ELECTRON_SMEAR_ATLAS_RUN2), "Electrons");
FinalState mus(Cuts::abseta < 2.5 && Cuts::pT > 6*GeV && Cuts::abspid == PID::MUON);
declare(mus, "TruthMuons");
declare(SmearedParticles(mus, MUON_EFF_ATLAS_RUN2, MUON_SMEAR_ATLAS_RUN2), "Muons");
// Book histograms/counters
book(_h_gg2j,"GG-2j");
book(_h_gg6j0,"GG-6j-0bulk");
book(_h_gg6j1,"GG-6j-1highmass");
book(_h_gg4j0,"GG-4j-0lowx");
book(_h_gg4j1,"GG-4j-1lowxbveto");
book(_h_gg4j2,"GG-4j-2highx");
book(_h_ss4j0,"SS-4j-0x12");
book(_h_ss4j1,"SS-4j-1lowx");
book(_h_ss5j0,"SS-5j-0x12");
book(_h_ss5j1,"SS-5j-1highx");
}
/// Perform the per-event analysis
void analyze(const Event& event) {
// Get baseline electrons, muons, and jets
Particles elecs = apply<ParticleFinder>(event, "Electrons").particles();
Particles muons = apply<ParticleFinder>(event, "Muons").particles();
Jets jets = apply<JetAlg>(event, "Jets").jetsByPt(Cuts::pT > 20*GeV && Cuts::abseta < 4.5);
// Jet/electron/muons overlap removal and selection
// Remove any jet within dR = 0.2 of an electron
for (const Particle& e : elecs)
ifilter_discard(jets, deltaRLess(e, 0.2, RAPIDITY));
// Remove any electron within dR = 0.01 of a muon
for (const Particle& m : muons)
ifilter_discard(elecs, deltaRLess(m, 0.01, RAPIDITY));
// Assemble b-jets collection, and remove muons within dR = 0.2 of a b-tagged jet
Jets bjets;
for (const Jet& j : jets) {
if (j.abseta() < 2.5 && j.pT() > 30*GeV && j.bTagged(Cuts::pT > 5*GeV)) {
bjets += j;
ifilter_discard(muons, deltaRLess(j, 0.2, RAPIDITY));
}
}
// Remove any jet within dR = 0.2 of a muon if track conditions are met
for (const Particle& m : muons)
ifilter_discard(jets, [&](const Jet& j){
if (deltaR(j,m) > 0.2) return false;
/// @todo Add track efficiency random filtering
const Particles trks = j.particles(Cuts::abscharge > 0 && Cuts::pT > 0.5*GeV);
return trks.size() < 4 || m.pT()/j.pT() > 0.7;
});
// Remove any muon within dR = 0.2 of a remaining jet if the same track conditions are *not* met
/// @todo There must be nicer way to do complementary removal...
for (const Jet& j : jets) {
/// @todo Add track efficiency random filtering
const size_t ntrks = j.particles(Cuts::abscharge > 0 && Cuts::pT > 0.5*GeV).size();
ifilter_discard(muons, [&](const Particle& m){
if (deltaR(j,m) > 0.2) return false;
return ntrks > 3 && m.pT()/j.pT() < 0.7;
});
}
// Remove any muon with dR close to a remaining jet, via a functional form
for (const Jet& j : jets)
ifilter_discard(muons, [&](const Particle& m) { return deltaR(m,j, RAPIDITY) < min(0.4, 0.04 + 10*GeV/m.pT()); });
// Signal jet selection
const Jets sigjets = filter_select(jets, Cuts::pT > 30*GeV && Cuts::abseta < 2.8);
const Jets sigbjets = bjets;
// "Gradient-loose" signal lepton selection
const ParticleEffFilter grad_loose_filter([](const Particle& e) { return e.pT() > 60*GeV ? 0.98 : 0.95; });
Particles sigelecs = filter_select(elecs, grad_loose_filter);
Particles sigmuons = filter_select(muons, grad_loose_filter);
// Tight electron selection (NB. assuming independent eff to gradient-loose... hmm)
ifilter_select(sigelecs, ParticleEffFilter(ELECTRON_EFF_ATLAS_RUN2_TIGHT));
// MET calculation (NB. done generically, with smearing, rather than via explicit physics objects)
const Vector3 vmet = -apply<SmearedMET>(event, "MET").vectorEt();
const double etmiss = vmet.mod();
//////////////////
// Event selection cuts
if (sigelecs.size() + sigmuons.size() != 1) vetoEvent;
const Particle siglepton = sigelecs.empty() ? sigmuons.front() : sigelecs.front();
// mT and m_eff
const double mT = sqrt(2*siglepton.pT()*etmiss*(1-cos(deltaPhi(siglepton,vmet))));
const double meff = siglepton.pT() + sum(sigjets, pT, 0.0) + etmiss;
// Aplanarities
Sphericity sph;
vector<FourMomentum> vecs;
transform(sigjets, vecs, mom);
sph.calc(vecs);
const double jet_aplanarity = sph.aplanarity();
vecs += siglepton.mom();
sph.calc(vecs);
const double lepton_aplanarity = sph.aplanarity();
//////////////////
// Fill counters
// GG
if (siglepton.pT() < 35*GeV && sigjets.size() >= 2 &&
sigjets[0].pT() > 200*GeV && sigjets[1].pT() > 30*GeV &&
mT > 100*GeV && etmiss > 460*GeV && etmiss/meff > 0.35) _h_gg2j->fill();
if (siglepton.pT() > 35*GeV && sigjets.size() >= 6 &&
sigjets[0].pT() > 125*GeV && sigjets[5].pT() > 30*GeV &&
mT > 225*GeV && etmiss > 250*GeV && meff > 1000*GeV && etmiss/meff > 0.2 &&
jet_aplanarity > 0.04) _h_gg6j0->fill();
if (siglepton.pT() > 35*GeV && sigjets.size() >= 6 &&
sigjets[0].pT() > 125*GeV && sigjets[5].pT() > 30*GeV &&
mT > 225*GeV && etmiss > 250*GeV && meff > 2000*GeV && etmiss/meff > 0.1 &&
jet_aplanarity > 0.04) _h_gg6j1->fill();
if (sigjets.size() >= 4 && sigjets[3].pT() > 100*GeV &&
mT > 125*GeV && etmiss > 250*GeV && meff > 2000*GeV && jet_aplanarity > 0.06) _h_gg4j0->fill();
if (sigjets.size() >= 4 && sigjets[3].pT() > 100*GeV && sigbjets.empty() &&
mT > 125*GeV && etmiss > 250*GeV && meff > 2000*GeV && jet_aplanarity > 0.03) _h_gg4j1->fill();
if (siglepton.pT() > 35*GeV &&
sigjets.size() >= 4 && sigjets[0].pT() > 400*GeV && inRange(sigjets[3].pT(), 30*GeV, 100*GeV) &&
mT > 475*GeV && etmiss > 250*GeV && meff > 1600*GeV && etmiss/meff > 0.3) _h_gg4j2->fill();
// SS
if (siglepton.pT() > 35*GeV && sigjets.size() >= 4 && sigjets[3].pT() > 50*GeV &&
mT > 175*GeV && etmiss > 300*GeV && meff > 1200*GeV && lepton_aplanarity > 0.08) _h_ss4j0->fill();
if (siglepton.pT() > 35*GeV && sigjets.size() >= 5 && sigjets[4].pT() > 50*GeV && sigbjets.empty() &&
mT > 175*GeV && etmiss > 300*GeV && etmiss/meff > 0.2) _h_ss5j0->fill();
if (siglepton.pT() > 35*GeV && sigjets.size() >= 4 && sigjets[0].pT() > 250*GeV && sigjets[3].pT() > 30*GeV &&
inRange(mT, 150*GeV, 400*GeV) && etmiss > 250*GeV && lepton_aplanarity > 0.03) _h_ss4j1->fill();
if (siglepton.pT() > 35*GeV && sigjets.size() >= 5 && sigjets[4].pT() > 30*GeV &&
mT > 400*GeV && etmiss > 400*GeV && lepton_aplanarity > 0.03) _h_ss5j1->fill();
}
/// Normalise counters after the run
void finalize() {
const double sf = 14.8*crossSection()/femtobarn/sumOfWeights();
scale(_h_gg2j, sf); scale(_h_gg6j0, sf); scale(_h_gg6j1, sf);
scale(_h_gg4j0, sf); scale(_h_gg4j1, sf); scale(_h_gg4j2, sf);
scale(_h_ss4j0, sf); scale(_h_ss4j1, sf); scale(_h_ss5j0, sf);
scale(_h_ss5j1, sf);
}
//@}
private:
/// @name Histograms
//@{
CounterPtr _h_gg2j, _h_gg6j0, _h_gg6j1, _h_gg4j0, _h_gg4j1, _h_gg4j2;
CounterPtr _h_ss4j0, _h_ss4j1, _h_ss5j0,_h_ss5j1;
//@}
};
// The hook for the plugin system
RIVET_DECLARE_PLUGIN(ATLAS_2016_CONF_2016_054);
}
|