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| // -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/FinalState.hh"
#include "Rivet/Projections/IdentifiedFinalState.hh"
#include "Rivet/Projections/DressedLeptons.hh"
#include "Rivet/Projections/FastJets.hh"
#include "Rivet/Projections/VetoedFinalState.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
namespace Rivet {
/// kT splittings in Z events at 8 TeV
class ATLAS_2017_I1589844 : public Analysis {
public:
/// @name Constructors etc.
//@{
/// Constructors
ATLAS_2017_I1589844(const string name="ATLAS_2017_I1589844",
const string ref_data="ATLAS_2017_I1589844") : Analysis(name) {
setRefDataName(ref_data);
}
//@}
/// @name Analysis methods
//@{
/// Book histograms and initialise projections before the run
void init() {
// Get options from the new option system
_mode = 0;
if ( getOption("LMODE") == "EL" ) _mode = 1;
if ( getOption("LMODE") == "MU" ) _mode = 2;
const FinalState fs;
const Cut cuts_mu = (Cuts::pT > 25*GeV) && (Cuts::abseta < 2.4);
const Cut cuts_el = Cuts::pT > 25*GeV && (Cuts::abseta <= 1.37 || (Cuts::abseta >= 1.52 && Cuts::abseta < 2.47));
IdentifiedFinalState bare_mu(fs);
bare_mu.acceptIdPair(PID::MUON);
IdentifiedFinalState bare_el(fs);
bare_el.acceptIdPair(PID::ELECTRON);
const DressedLeptons muons(fs, bare_mu, 0.1, cuts_mu, true);
const DressedLeptons elecs(fs, bare_el, 0.1, cuts_el, true);
declare(muons, "muons");
declare(elecs, "elecs");
const ChargedFinalState cfs(Cuts::abseta < 2.5 && Cuts::pT > 0.4*GeV);
VetoedFinalState jet_fs(cfs);
jet_fs.addVetoOnThisFinalState(muons);
jet_fs.addVetoOnThisFinalState(elecs);
declare(FastJets(jet_fs, FastJets::KT, 0.4), "Kt04Jets");
declare(FastJets(jet_fs, FastJets::KT, 1.0), "Kt10Jets");
VetoedFinalState jet_fs_all(FinalState(Cuts::abseta < 2.5 && Cuts::pT > 0.4*GeV));
jet_fs_all.addVetoOnThisFinalState(muons);
jet_fs_all.addVetoOnThisFinalState(elecs);
FastJets jetpro04_all(jet_fs_all, FastJets::KT, 0.4);
jetpro04_all.useInvisibles();
declare(jetpro04_all, "Kt04Jets_all");
FastJets jetpro10_all(jet_fs_all, FastJets::KT, 1.0);
jetpro10_all.useInvisibles();
declare(jetpro10_all, "Kt10Jets_all");
// Histograms with data binning
_ndij = 8;
for (size_t i = 0; i < _ndij; ++i) {
if (_mode == 0 || _mode == 1) {
string label = "el_d" + to_str(i) + "_kT4";
book(_h[label], i + 1, 1, 1);
book(_h[label + "_all"], i + 1, 1, 5);
label = "el_d" + to_str(i) + "_kT10";
book(_h[label], i + 1, 1, 3);
book(_h[label + "_all"], i + 1, 1, 7);
}
if (_mode == 0 || _mode == 2) {
string label = "mu_d" + to_str(i) + "_kT4";
book(_h[label], i + 1, 1, 2);
book(_h[label + "_all"], i + 1, 1, 6);
label = "mu_d" + to_str(i) + "_kT10";
book(_h[label], i + 1, 1, 4);
book(_h[label + "_all"], i + 1, 1, 8);
}
}
}
/// Perform the per-event analysis
void analyze(const Event& e) {
// Check we have a Z candidate:
const vector<DressedLepton>& muons = apply<DressedLeptons>(e, "muons").dressedLeptons();
const vector<DressedLepton>& elecs = apply<DressedLeptons>(e, "elecs").dressedLeptons();
bool e_ok = elecs.size() == 2 && muons.empty();
bool m_ok = elecs.empty() && muons.size() == 2;
if (_mode == 0 && !e_ok && !m_ok) vetoEvent;
if (_mode == 1 && !e_ok ) vetoEvent;
if (_mode == 2 && !m_ok ) vetoEvent;
string lep_type = elecs.size()? "el_" : "mu_";
const vector<DressedLepton>& leptons = elecs.size()? elecs : muons;
if (leptons[0].charge()*leptons[1].charge() > 0) vetoEvent;
const double dilepton_mass = (leptons[0].momentum() + leptons[1].momentum()).mass();
if (!inRange(dilepton_mass, 71*GeV, 111*GeV)) vetoEvent;
// Get kT splitting scales (charged particles only)
const FastJets& jetpro04 = applyProjection<FastJets>(e, "Kt04Jets");
const shared_ptr<fastjet::ClusterSequence> seq04 = jetpro04.clusterSeq();
for (size_t i = 0; i < min(_ndij, (size_t)seq04->n_particles()); ++i) {
const double dij = sqrt(seq04->exclusive_dmerge_max(i))/GeV;
if (dij <= 0.0) continue;
const string label = lep_type + "d" + to_str(i) + "_kT4";
_h[label]->fill(dij);
}
const FastJets& jetpro10 = applyProjection<FastJets>(e, "Kt10Jets");
const shared_ptr<fastjet::ClusterSequence> seq10 = jetpro10.clusterSeq();
for (size_t i = 0; i < min(_ndij, (size_t)seq10->n_particles()); ++i) {
const double dij = sqrt(seq10->exclusive_dmerge_max(i))/GeV;
if (dij <= 0.0) continue;
const string label = lep_type + "d" + to_str(i) + "_kT10";
_h[label]->fill(dij);
}
// Get kT splitting scales (all particles)
const FastJets& jetpro04_all = applyProjection<FastJets>(e, "Kt04Jets_all");
const shared_ptr<fastjet::ClusterSequence> seq04_all = jetpro04_all.clusterSeq();
for (size_t i = 0; i < min(_ndij, (size_t)seq04_all->n_particles()); ++i) {
const double dij = sqrt(seq04_all->exclusive_dmerge_max(i))/GeV;
if (dij <= 0.0) continue;
const string label = lep_type + "d" + to_str(i) + "_kT4_all";
_h[label]->fill(dij);
}
const FastJets& jetpro10_all = applyProjection<FastJets>(e, "Kt10Jets_all");
const shared_ptr<fastjet::ClusterSequence> seq10_all = jetpro10_all.clusterSeq();
for (size_t i = 0; i < min(_ndij, (size_t)seq10_all->n_particles()); ++i) {
const double dij = sqrt(seq10_all->exclusive_dmerge_max(i))/GeV;
if (dij <= 0.0) continue;
const string label = lep_type + "d" + to_str(i) + "_kT10_all";
_h[label]->fill(dij);
}
}
/// Normalise histograms etc., after the run
void finalize() {
const double sf = crossSectionPerEvent();
for (auto& kv : _h) scale(kv.second, sf);
}
//@}
protected:
// Data members like post-cuts event weight counters go here
size_t _mode, _ndij;
private:
// Histograms
map<string, Histo1DPtr> _h;
};
RIVET_DECLARE_PLUGIN(ATLAS_2017_I1589844);
}
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