file analyses/Analysis_ATLAS_13TeV_0LEP_13invfb.cpp
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Namespaces
| Name |
|---|
| Gambit TODO: see if we can use this one: |
| Gambit::ColliderBit |
Classes
| Name | |
|---|---|
| class | Gambit::ColliderBit::Analysis_ATLAS_13TeV_0LEP_13invfb ATLAS Run 2 0-lepton jet+MET SUSY analysis, with 13/fb of data. |
Source code
// -*- C++ -*-
#include "gambit/ColliderBit/analyses/Analysis.hpp"
#include "gambit/ColliderBit/analyses/Cutflow.hpp"
#include "gambit/ColliderBit/ATLASEfficiencies.hpp"
#include "gambit/Utils/begin_ignore_warnings_eigen.hpp"
#include "Eigen/Eigen"
#include "gambit/Utils/end_ignore_warnings.hpp"
namespace Gambit
{
namespace ColliderBit
{
using namespace std;
using namespace HEPUtils;
/// @brief ATLAS Run 2 0-lepton jet+MET SUSY analysis, with 13/fb of data
///
/// Based on:
/// https://cds.cern.ch/record/2206252
/// https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2016-078/
///
/// Recursive jigsaw reconstruction signal regions are currently not included
///
class Analysis_ATLAS_13TeV_0LEP_13invfb : public Analysis
{
public:
// Required detector sim
static constexpr const char* detector = "ATLAS";
// Counters for the number of accepted events for each signal region
std::map<string, EventCounter> _counters = {
{"2j-0800", EventCounter("2j-0800")},
{"2j-1200", EventCounter("2j-1200")},
{"2j-1600", EventCounter("2j-1600")},
{"2j-2000", EventCounter("2j-2000")},
{"3j-1200", EventCounter("3j-1200")},
{"4j-1000", EventCounter("4j-1000")},
{"4j-1400", EventCounter("4j-1400")},
{"4j-1800", EventCounter("4j-1800")},
{"4j-2200", EventCounter("4j-2200")},
{"4j-2600", EventCounter("4j-2600")},
{"5j-1400", EventCounter("5j-1400")},
{"6j-1800", EventCounter("6j-1800")},
{"6j-2200", EventCounter("6j-2200")},
};
Cutflows _flows;
Analysis_ATLAS_13TeV_0LEP_13invfb()
{
set_analysis_name("ATLAS_13TeV_0LEP_13invfb");
set_luminosity(13.3);
// Book cut-flows
const vector<string> cuts23j = {"Pre-sel+MET+pT1+meff", "Njet", "Dphi_min(j123,MET)", "Dphi_min(j4+,MET)", "pT2", "eta_j12", "MET/sqrtHT", "m_eff(incl)"};
_flows.addCutflow("2j-0800", cuts23j);
_flows.addCutflow("2j-1200", cuts23j);
_flows.addCutflow("2j-1600", cuts23j);
_flows.addCutflow("2j-2000", cuts23j);
_flows.addCutflow("3j-1200", cuts23j);
const vector<string> cuts456j = {"Pre-sel+MET+pT1+meff", "Njet", "Dphi_min(j123,MET)", "Dphi_min(j4+,MET)", "pT4", "eta_j1234", "Aplanarity", "MET/m_eff(Nj)", "m_eff(incl)"};
_flows.addCutflow("4j-1000", cuts456j);
_flows.addCutflow("4j-1400", cuts456j);
_flows.addCutflow("4j-1800", cuts456j);
_flows.addCutflow("4j-2200", cuts456j);
_flows.addCutflow("4j-2600", cuts456j);
_flows.addCutflow("5j-1400", cuts456j);
_flows.addCutflow("6j-1800", cuts456j);
_flows.addCutflow("6j-2200", cuts456j);
}
void run(const Event* event)
{
_flows.fillinit();
// Missing energy
const P4 pmiss = event->missingmom();
const double met = event->met();
// Get baseline jets
/// @todo Drop b-tag if pT < 50 GeV or |eta| > 2.5?
vector<const Jet*> baselineJets;
for (const Jet* jet : event->jets("antikt_R04"))
if (jet->pT() > 20. && jet->abseta() < 2.8)
{
baselineJets.push_back(jet);
}
// Get baseline electrons
vector<const Particle*> baselineElectrons;
for (const Particle* electron : event->electrons())
if (electron->pT() > 10. && electron->abseta() < 2.47)
baselineElectrons.push_back(electron);
// Apply electron efficiency
ATLAS::applyElectronEff(baselineElectrons);
// Get baseline muons
vector<const Particle*> baselineMuons;
for (const Particle* muon : event->muons())
if (muon->pT() > 10. && muon->abseta() < 2.7)
baselineMuons.push_back(muon);
// Apply muon efficiency
ATLAS::applyMuonEff(baselineMuons);
// Full isolation details:
// - Remove electrons within dR = 0.2 of a b-tagged jet
// - Remove any |eta| < 2.8 jet within dR = 0.2 of a remaining electron
// - Remove any electron with dR in [0.2, 0.4] of a remaining jet
// - Remove any muon with dR close to a remaining jet, via a functional form
// ifilterBy(muons, [&](const Particle& m){ return deltaR(m,j) < min(0.4, 0.04 + 10*GeV/m.pT()); });
// - Remove any |eta| < 2.8 jet within dR = 0.2 of a remaining muon if (inaccessible) track conditions are met... hmm
// - Loose electron selection
// Remove any |eta| < 2.8 jet within dR = 0.2 of an electron
/// @todo Unless b-tagged (and pT > 50 && abseta < 2.5)
vector<const Jet*> signalJets;
for (const Jet* j : baselineJets)
if (all_of(baselineElectrons, [&](const Particle* e){ return deltaR_rap(*e, *j) > 0.2; }))
signalJets.push_back(j);
// Remove electrons with dR = 0.4 of surviving |eta| < 2.8 jets
/// @todo Actually only within 0.2--0.4...
vector<const Particle*> signalElectrons;
for (const Particle* e : baselineElectrons)
if (all_of(signalJets, [&](const Jet* j){ return deltaR_rap(*e, *j) > 0.4; }))
signalElectrons.push_back(e);
// Apply electron ID selection
ATLAS::applyLooseIDElectronSelectionR2(signalElectrons);
// Remove muons with dR = 0.4 of surviving |eta| < 2.8 jets
/// @todo Actually only within 0.2--0.4...
/// @note Within 0.2, discard the *jet* based on jet track vs. muon criteria... can't be done here
vector<const Particle*> signalMuons;
for (const Particle* m : baselineMuons)
if (all_of(signalJets, [&](const Jet* j){ return deltaR_rap(*m, *j) > 0.4; }))
signalMuons.push_back(m);
// The subset of jets with pT > 50 GeV is used for several calculations
vector<const Jet*> signalJets50;
for (const Jet* j : signalJets)
if (j->pT() > 50) signalJets50.push_back(j);
////////////////////////////////
// Calculate common variables and cuts
// Multiplicities
const size_t nElectrons = signalElectrons.size();
const size_t nMuons = signalMuons.size();
const size_t nJets50 = signalJets50.size();
//const size_t nJets = signalJets.size();
// HT-related quantities (calculated over all >20 GeV jets)
double sumptj = 0;
for (const Jet* j : signalJets) sumptj += j->pT();
const double HT = sumptj;
const double sqrtHT = sqrt(HT);
const double met_sqrtHT = met/sqrtHT;
// Meff-related quantities (calculated over >50 GeV jets only)
double sumptj50_4 = 0, sumptj50_5 = 0, sumptj50_6 = 0, sumptj50_incl = 0;
for (size_t i = 0; i < signalJets50.size(); ++i)
{
const Jet* j = signalJets50[i];
if (i < 4) sumptj50_4 += j->pT();
if (i < 5) sumptj50_5 += j->pT();
if (i < 6) sumptj50_6 += j->pT();
sumptj50_incl += j->pT();
}
const double meff_4 = met + sumptj50_4;
const double meff_5 = met + sumptj50_5;
const double meff_6 = met + sumptj50_6;
const double meff_incl = met + sumptj50_incl;
const double met_meff_4 = met / meff_4;
const double met_meff_5 = met / meff_5;
const double met_meff_6 = met / meff_6;
// Jet |eta|s
double etamax_2 = 0;
for (size_t i = 0; i < min(2lu,signalJets.size()); ++i)
etamax_2 = max(etamax_2, signalJets[i]->abseta());
double etamax_4 = etamax_2;
for (size_t i = 2; i < min(4lu,signalJets.size()); ++i)
etamax_4 = max(etamax_4, signalJets[i]->abseta());
double etamax_6 = etamax_4;
for (size_t i = 4; i < min(6lu,signalJets.size()); ++i)
etamax_6 = max(etamax_6, signalJets[i]->abseta());
// Jet--MET dphis
double dphimin_123 = DBL_MAX, dphimin_more = DBL_MAX;
for (size_t i = 0; i < min(3lu,signalJets50.size()); ++i)
dphimin_123 = min(dphimin_123, acos(cos(signalJets50[i]->phi() - pmiss.phi())));
for (size_t i = 3; i < signalJets50.size(); ++i)
dphimin_more = min(dphimin_more, acos(cos(signalJets50[i]->phi() - pmiss.phi())));
// Jet aplanarity (on 50 GeV jets only, cf. INT note)
Eigen::Matrix3d momtensor = Eigen::Matrix3d::Zero();
double norm = 0;
for (const Jet* jet : signalJets50)
{
const P4& p4 = jet->mom();
norm += p4.p2();
for (size_t i = 0; i < 3; ++i)
{
const double pi = (i == 0) ? p4.px() : (i == 1) ? p4.py() : p4.pz();
for (size_t j = 0; j < 3; ++j)
{
const double pj = (j == 0) ? p4.px() : (j == 1) ? p4.py() : p4.pz();
momtensor(i,j) += pi*pj;
}
}
}
momtensor /= norm;
const double mineigenvalue = momtensor.eigenvalues().real().minCoeff();
const double aplanarity = 1.5 * mineigenvalue;
////////////////////////////////
// Fill signal regions
const bool leptonCut = (nElectrons == 0 && nMuons == 0);
const bool metCut = (met > 250.);
if (nJets50 >= 2 && leptonCut && metCut)
{
_flows.fill(0);
// 2 jet regions
if (dphimin_123 > 0.8 && dphimin_more > 0.4)
{
if (signalJets[1]->pT() > 200 && etamax_2 < 0.8) //< implicit pT[0] cut
{
if (met_sqrtHT > 14 && meff_incl > 800) _counters.at("2j-0800").add_event(event);
}
if (signalJets[1]->pT() > 250 && etamax_2 < 1.2) //< implicit pT[0] cut
{
if (met_sqrtHT > 16 && meff_incl > 1200) _counters.at("2j-1200").add_event(event);
if (met_sqrtHT > 18 && meff_incl > 1600) _counters.at("2j-1600").add_event(event);
if (met_sqrtHT > 20 && meff_incl > 2000) _counters.at("2j-2000").add_event(event);
}
}
// 3 jet region
if (nJets50 >= 3 && dphimin_123 > 0.4 && dphimin_more > 0.2)
{
if (signalJets[0]->pT() > 600 && signalJets[2]->pT() > 50) //< implicit pT[1] cut
{
if (met_sqrtHT > 16 && meff_incl > 1200) _counters.at("3j-1200").add_event(event);
}
}
// 4 jet regions (note implicit pT[1,2] cuts)
if (nJets50 >= 4 && dphimin_123 > 0.4 && dphimin_more > 0.4 && signalJets[0]->pT() > 200 && aplanarity > 0.04)
{
if (signalJets[3]->pT() > 100 && etamax_4 < 1.2 && met_meff_4 > 0.25 && meff_incl > 1000) _counters.at("4j-1000").add_event(event);
if (signalJets[3]->pT() > 100 && etamax_4 < 2.0 && met_meff_4 > 0.25 && meff_incl > 1400) _counters.at("4j-1400").add_event(event);
if (signalJets[3]->pT() > 100 && etamax_4 < 2.0 && met_meff_4 > 0.20 && meff_incl > 1800) _counters.at("4j-1800").add_event(event);
if (signalJets[3]->pT() > 150 && etamax_4 < 2.0 && met_meff_4 > 0.20 && meff_incl > 2200) _counters.at("4j-2200").add_event(event);
if (signalJets[3]->pT() > 150 && met_meff_4 > 0.20 && meff_incl > 2600) _counters.at("4j-2600").add_event(event);
}
// 5 jet region (note implicit pT[1,2,3] cuts)
if (nJets50 >= 5 && dphimin_123 > 0.4 && dphimin_more > 0.2 && signalJets[0]->pT() > 500)
{
if (signalJets[4]->pT() > 50 && met_meff_5 > 0.3 && meff_incl > 1400) _counters.at("5j-1400").add_event(event);
}
// 6 jet regions (note implicit pT[1,2,3,4] cuts)
if (nJets50 >= 6 && dphimin_123 > 0.4 && dphimin_more > 0.2 && signalJets[0]->pT() > 200 && aplanarity > 0.08)
{
if (signalJets[5]->pT() > 50 && etamax_6 < 2.0 && met_meff_6 > 0.20 && meff_incl > 1800) _counters.at("6j-1800").add_event(event);
if (signalJets[5]->pT() > 100 && met_meff_6 > 0.15 && meff_incl > 2200) _counters.at("6j-2200").add_event(event);
}
// Cutflows
if (nJets50 >= 2) _flows["2j-0800"].filltail({true, dphimin_123 > 0.8, dphimin_more > 0.4, signalJets[1]->pT() > 200, etamax_2 < 0.8, met_sqrtHT > 14*sqrt(GeV), meff_incl > 800});
if (nJets50 >= 2) _flows["2j-1200"].filltail({true, dphimin_123 > 0.8, dphimin_more > 0.4, signalJets[1]->pT() > 250, etamax_2 < 1.2, met_sqrtHT > 16*sqrt(GeV), meff_incl > 1200});
if (nJets50 >= 2) _flows["2j-1600"].filltail({true, dphimin_123 > 0.8, dphimin_more > 0.4, signalJets[1]->pT() > 250, etamax_2 < 1.2, met_sqrtHT > 18*sqrt(GeV), meff_incl > 1600});
if (nJets50 >= 2) _flows["2j-2000"].filltail({true, dphimin_123 > 0.8, dphimin_more > 0.4, signalJets[1]->pT() > 250, etamax_2 < 1.2, met_sqrtHT > 20*sqrt(GeV), meff_incl > 2000});
if (nJets50 >= 3) _flows["3j-1200"].filltail({nJets50 >= 3, dphimin_123 > 0.4, dphimin_more > 0.2, signalJets[0]->pT() > 600 && signalJets[2]->pT() > 50, true, met_sqrtHT > 16*sqrt(GeV), meff_incl > 1200});
if (nJets50 >= 4) _flows["4j-1000"].filltail({nJets50 >= 4, dphimin_123 > 0.4, dphimin_more > 0.4, signalJets[0]->pT() > 200 && signalJets[3]->pT() > 100, etamax_4 < 1.2, aplanarity > 0.04, met_meff_4 > 0.25*sqrt(GeV), meff_incl > 1000});
if (nJets50 >= 4) _flows["4j-1400"].filltail({nJets50 >= 4, dphimin_123 > 0.4, dphimin_more > 0.4, signalJets[0]->pT() > 200 && signalJets[3]->pT() > 100, etamax_4 < 2.0, aplanarity > 0.04, met_meff_4 > 0.25*sqrt(GeV), meff_incl > 1400});
if (nJets50 >= 4) _flows["4j-1800"].filltail({nJets50 >= 4, dphimin_123 > 0.4, dphimin_more > 0.4, signalJets[0]->pT() > 200 && signalJets[3]->pT() > 100, etamax_4 < 2.0, aplanarity > 0.04, met_meff_4 > 0.20*sqrt(GeV), meff_incl > 1800});
if (nJets50 >= 4) _flows["4j-2200"].filltail({nJets50 >= 4, dphimin_123 > 0.4, dphimin_more > 0.4, signalJets[0]->pT() > 200 && signalJets[3]->pT() > 150, etamax_4 < 2.0, aplanarity > 0.04, met_meff_4 > 0.20*sqrt(GeV), meff_incl > 2200});
if (nJets50 >= 4) _flows["4j-2600"].filltail({nJets50 >= 4, dphimin_123 > 0.4, dphimin_more > 0.4, signalJets[0]->pT() > 200 && signalJets[3]->pT() > 150, true, aplanarity > 0.04, met_meff_4 > 0.20*sqrt(GeV), meff_incl > 2600});
if (nJets50 >= 5) _flows["5j-1400"].filltail({nJets50 >= 5, dphimin_123 > 0.4, dphimin_more > 0.2, signalJets[0]->pT() > 500 && signalJets[4]->pT() > 50, true, true, met_meff_5 > 0.3*sqrt(GeV), meff_incl > 1400});
if (nJets50 >= 6) _flows["6j-1800"].filltail({nJets50 >= 6, dphimin_123 > 0.4, dphimin_more > 0.2, signalJets[0]->pT() > 200 && signalJets[5]->pT() > 50, etamax_6 < 2.0, aplanarity > 0.08, met_meff_6 > 0.20*sqrt(GeV), meff_incl > 1800});
if (nJets50 >= 6) _flows["6j-2200"].filltail({nJets50 >= 6, dphimin_123 > 0.4, dphimin_more > 0.2, signalJets[0]->pT() > 200 && signalJets[5]->pT() > 100, true, aplanarity > 0.08, met_meff_6 > 0.15*sqrt(GeV), meff_incl > 2200});
}
}
/// Combine the variables of another copy of this analysis (typically on another thread) into this one.
void combine(const Analysis* other)
{
const Analysis_ATLAS_13TeV_0LEP_13invfb* specificOther = dynamic_cast<const Analysis_ATLAS_13TeV_0LEP_13invfb*>(other);
for (auto& pair : _counters) { pair.second += specificOther->_counters.at(pair.first); }
}
/// Register results objects with the results for each SR; obs & bkg numbers from the CONF note
void collect_results()
{
add_result(SignalRegionData(_counters.at("2j-0800"), 650, {610., 50.}));
add_result(SignalRegionData(_counters.at("2j-1200"), 270, {297., 29.}));
add_result(SignalRegionData(_counters.at("2j-1600"), 96, {121., 13.}));
add_result(SignalRegionData(_counters.at("2j-2000"), 29, { 42., 6.}));
add_result(SignalRegionData(_counters.at("3j-1200"), 363, {355., 33.}));
add_result(SignalRegionData(_counters.at("4j-1000"), 97, { 84., 7.}));
add_result(SignalRegionData(_counters.at("4j-1400"), 71, { 66., 8.}));
add_result(SignalRegionData(_counters.at("4j-1800"), 37, { 27., 3.2}));
add_result(SignalRegionData(_counters.at("4j-2200"), 10, { 4.8, 1.1}));
add_result(SignalRegionData(_counters.at("4j-2600"), 3, { 2.7, 0.6}));
add_result(SignalRegionData(_counters.at("5j-1400"), 64, { 68., 9.}));
add_result(SignalRegionData(_counters.at("6j-1800"), 10, { 5.5, 1.0}));
add_result(SignalRegionData(_counters.at("6j-2200"), 1, { 0.82,0.35}));
// const double sf = 13.3*crossSection()/femtobarn/sumOfWeights();
// _flows.scale(sf);
// cout << "CUTFLOWS:\n\n" << _flows << endl;
}
protected:
void analysis_specific_reset()
{
for (auto& pair : _counters) { pair.second.reset(); }
}
};
// Factory fn
DEFINE_ANALYSIS_FACTORY(ATLAS_13TeV_0LEP_13invfb)
}
}
Updated on 2024-07-18 at 13:53:34 +0000