file analyses/Analysis_ATLAS_8TeV_2LEPStop_20invfb.cpp
[No description available]
Namespaces
| Name |
|---|
| Gambit TODO: see if we can use this one: |
| Gambit::ColliderBit |
Classes
| Name | |
|---|---|
| class | Gambit::ColliderBit::Analysis_ATLAS_8TeV_2LEPStop_20invfb |
Source code
#include <vector>
#include <cmath>
#include <memory>
#include <iomanip>
#include "gambit/ColliderBit/analyses/Analysis.hpp"
#include "gambit/ColliderBit/ATLASEfficiencies.hpp"
#include "gambit/ColliderBit/mt2_bisect.h"
/// @todo Remove the ROOT classes...
using namespace std;
// The ATLAS 2 lepton direct stop analysis (20fb^-1) - `heavy stop'.
// based on: arXiv: 1403.4853
// Code by Martin White, Sky French.
// Known errors:
// a) The isolation is already applied in the simulation rather than after overlap removal -> the electron and muon veto technically require a veto on base-line electrons/muons not overlapping with jets
// Known features:
// a) Must run simulator with 70% b tagging efficiency and ?% mis-id rate
namespace Gambit {
namespace ColliderBit {
//Puts dphi in the range -pi to pi
double Phi_mpi_pi(double x){
while (x >= M_PI) x -= 2*M_PI;
while (x < -M_PI) x += 2*M_PI;
return x;
}
class Analysis_ATLAS_8TeV_2LEPStop_20invfb : public Analysis {
private:
// Numbers passing cuts
double _numSRM90SF, _numSRM100SF, _numSRM110SF, _numSRM120SF,
_numSRM90DF, _numSRM100DF, _numSRM110DF, _numSRM120DF;
vector<int> cutFlowVector;
vector<string> cutFlowVector_str;
int NCUTS; //=24;
// Debug histos
public:
// Required detector sim
static constexpr const char* detector = "ATLAS";
Analysis_ATLAS_8TeV_2LEPStop_20invfb()
: _numSRM90SF(0), _numSRM100SF(0), _numSRM110SF(0), _numSRM120SF(0),
_numSRM90DF(0), _numSRM100DF(0), _numSRM110DF(0), _numSRM120DF(0),
NCUTS(24)
{
set_analysis_name("ATLAS_8TeV_2LEPStop_20invfb");
set_luminosity(20.3);
for (int i=0; i<NCUTS; i++) {
cutFlowVector.push_back(0);
cutFlowVector_str.push_back("");
}
}
void run(const HEPUtils::Event* event) {
// Missing energy
HEPUtils::P4 ptot = event->missingmom();
//double met = event->met();
// Now define vector of baseline electrons
vector<const HEPUtils::Particle*> baselineElectrons;
for (const HEPUtils::Particle* electron : event->electrons()) {
if (electron->pT() > 10. && electron->abseta() < 2.47) baselineElectrons.push_back(electron);
}
// Apply electron efficiency
ATLAS::applyElectronEff(baselineElectrons);
// Now define vector of baseline muons
vector<const HEPUtils::Particle*> baselineMuons;
for (const HEPUtils::Particle* muon : event->muons()) {
if (muon->pT() > 10. && muon->abseta() < 2.4) baselineMuons.push_back(muon);
}
// Apply muon efficiency
ATLAS::applyMuonEff(baselineMuons);
vector<const HEPUtils::Particle*> baselineTaus;
for (const HEPUtils::Particle* tau : event->taus()) {
if (tau->pT() > 10. && tau->abseta() < 2.47) baselineTaus.push_back(tau);
}
ATLAS::applyTauEfficiencyR1(baselineTaus);
vector<const HEPUtils::Jet*> baselineJets;
vector<const HEPUtils::Jet*> bJets;
vector<const HEPUtils::Jet*> trueBJets; //for debugging
for (const HEPUtils::Jet* jet : event->jets("antikt_R04")) {
if (jet->pT() > 20. && fabs(jet->eta()) < 2.5) baselineJets.push_back(jet);
if(jet->btag() && fabs(jet->eta()) < 2.5 && jet->pT() > 20.) bJets.push_back(jet);
}
// Overlap removal
vector<const HEPUtils::Particle*> signalLeptons;
vector<const HEPUtils::Particle*> signalElectrons;
vector<const HEPUtils::Particle*> signalMuons;
vector<const HEPUtils::Particle*> electronsForVeto;
vector<const HEPUtils::Particle*> muonsForVeto;
vector<const HEPUtils::Jet*> goodJets;
vector<const HEPUtils::Jet*> signalJets;
//Note that ATLAS use |eta|<10 for removing jets close to electrons
//Then 2.8 is used for the rest of the overlap process
//Then the signal cut is applied for signal jets
// Remove any jet within dR=0.2 of an electrons
for (size_t iJet=0;iJet<baselineJets.size();iJet++) {
bool overlap=false;
HEPUtils::P4 jetVec=baselineJets.at(iJet)->mom();
for (size_t iEl=0;iEl<baselineElectrons.size();iEl++) {
HEPUtils::P4 elVec=baselineElectrons.at(iEl)->mom();
if (fabs(elVec.deltaR_eta(jetVec))<0.2)overlap=true;
}
if (!overlap&&fabs(baselineJets.at(iJet)->eta())<2.5)goodJets.push_back(baselineJets.at(iJet));
if (!overlap&&fabs(baselineJets.at(iJet)->eta())<2.5 && baselineJets.at(iJet)->pT()>20.)signalJets.push_back(baselineJets.at(iJet));
}
// Remove electrons with dR=0.4 or surviving jets
for (size_t iEl=0;iEl<baselineElectrons.size();iEl++) {
bool overlap=false;
HEPUtils::P4 elVec=baselineElectrons.at(iEl)->mom();
for (size_t iJet=0;iJet<goodJets.size();iJet++) {
HEPUtils::P4 jetVec=goodJets.at(iJet)->mom();
if (fabs(elVec.deltaR_eta(jetVec))<0.4)overlap=true;
}
if (!overlap && elVec.pT()>10.) {
signalElectrons.push_back(baselineElectrons.at(iEl));
signalLeptons.push_back(baselineElectrons.at(iEl));
}
if(!overlap)electronsForVeto.push_back(baselineElectrons.at(iEl));
}
// Remove muons with dR=0.4 or surviving jets
for (size_t iMu=0;iMu<baselineMuons.size();iMu++) {
bool overlap=false;
HEPUtils::P4 muVec=baselineMuons.at(iMu)->mom();
for (size_t iJet=0;iJet<goodJets.size();iJet++) {
HEPUtils::P4 jetVec=goodJets.at(iJet)->mom();
if (fabs(muVec.deltaR_eta(jetVec))<0.4){
overlap=true;
}
}
if (!overlap && muVec.pT()>10.) {
signalMuons.push_back(baselineMuons.at(iMu));
signalLeptons.push_back(baselineMuons.at(iMu));
}
if(!overlap)muonsForVeto.push_back(baselineMuons.at(iMu));
}
// We now have the signal electrons, muons, jets and b jets- move on to the analysis
// Calculate common variables and cuts first
ATLAS::applyTightIDElectronSelection(signalElectrons);
//int nElectrons = signalElectrons.size();
//int nMuons = signalMuons.size();
int nJets = signalJets.size();
int nLeptons = signalLeptons.size();
bool isOS=false;
bool isMLL=false;
bool isZsafe=false;
bool ispT=false;
bool isdphi=false;
bool isdphib=false;
//Calculate MT2
if (nLeptons==2) {
if(((signalLeptons.at(0)->pid()<0 && signalLeptons.at(1)->pid()>0) || (signalLeptons.at(0)->pid()>0 && signalLeptons.at(1)->pid()<0))) isOS=true;
if((signalLeptons[0]->mom()+signalLeptons[1]->mom()).m()>20.) isMLL=true;
if(fabs((signalLeptons[0]->mom()+signalLeptons[1]->mom()).m()-91.)>20.) isZsafe=true;
if(signalLeptons[0]->mom().pT()>25. || signalLeptons[1]->mom().pT()>25) ispT=true;
double dphi_jetmetclose = 9999.;
for(int j=0; j<nJets; j++) {
//double temp = std::acos(std::cos(signalJets.at(j)->phi()-ptot.phi()));
double temp = Phi_mpi_pi(signalJets.at(j)->phi()-ptot.phi());
if(fabs(temp)<dphi_jetmetclose) {
dphi_jetmetclose = temp;
}
}
if(fabs(dphi_jetmetclose)>1.0) isdphi=true;
HEPUtils::P4 ptllmet;
ptllmet = signalLeptons[0]->mom() + signalLeptons[1]->mom() + ptot;
//double temp = ptllmet.deltaPhi(ptot);
double temp=ptllmet.phi()-ptot.phi();
double dphib=Phi_mpi_pi((double)temp);
if(fabs(dphib)<1.5) isdphib=true;
}
//if(leptonsForVeto.size()>0 && leptonsForVeto[0]->pT()>25.)cout << "Leptons size " << leptonsForVeto.size() << " muons " << nMuons << " electrons " << nElectrons << endl;
//Common preselection for all signal regions
bool passJetCut=false;
//bool passBJetCut=false;
if(nJets>=2){
if(signalJets[0]->pT() > 100.
&& signalJets[1]->pT() > 50.)passJetCut=true;
}
//Calculate MT2
double mt2ll=0;
if(nLeptons==2){
double pa_a[3] = { 0, signalLeptons[0]->mom().px(), signalLeptons[0]->mom().py() };
double pb_a[3] = { 0, signalLeptons[1]->mom().px(), signalLeptons[1]->mom().py() };
double pmiss_a[3] = { 0, ptot.px(), ptot.py() };
double mn_a = 0.;
mt2_bisect::mt2 mt2_event_a;
mt2_event_a.set_momenta(pa_a,pb_a,pmiss_a);
mt2_event_a.set_mn(mn_a);
mt2ll = mt2_event_a.get_mt2();
}
bool cut_2leptons_ee=false;
bool cut_2leptons_emu=false;
bool cut_2leptons_mumu=false;
bool cut_2leptons_base=false;
bool cut_2leptons=false;
bool cut_2jets=false;
bool cut_MT290=false;
bool cut_MT2100=false;
bool cut_MT2110=false;
bool cut_MT2120=false;
if(mt2ll>90) cut_MT290=true;
if(mt2ll>100) cut_MT2100=true;
if(mt2ll>110) cut_MT2110=true;
if(mt2ll>120) cut_MT2120=true;
if((baselineElectrons.size()+baselineMuons.size())==2) cut_2leptons_base=true;
if((signalElectrons.size()+signalMuons.size())==2) cut_2leptons=true;
if(signalElectrons.size()==2 && signalMuons.size()==0) cut_2leptons_ee=true;
if(signalElectrons.size()==1 && signalMuons.size()==1) cut_2leptons_emu=true;
if(signalElectrons.size()==0 && signalMuons.size()==2) cut_2leptons_mumu=true;
if(passJetCut)cut_2jets=true;
cutFlowVector_str[0] = "No cuts ";
cutFlowVector_str[1] = "2 Baseline Leptons ";
cutFlowVector_str[2] = "2 SF Signal Leptons";
cutFlowVector_str[3] = "2 OS SF Signal Leptons ";
cutFlowVector_str[4] = "mll > 20 GeV ";
cutFlowVector_str[5] = "leading lepton pT ";
cutFlowVector_str[6] = "|mll-mZ|>20 GeV ";
cutFlowVector_str[7] = "dphi_min > 1.0 ";
cutFlowVector_str[8] = "dphib < 1.5 ";
cutFlowVector_str[9] = "SR M90 [SF] ";
cutFlowVector_str[10] = "SR M120 [SF] ";
cutFlowVector_str[11] = "SR M100 + 2 jets [SF] ";
cutFlowVector_str[12] = "SR M110 + 2 jets [SF] ";
cutFlowVector_str[13] = "2 DF Signal Leptons";
cutFlowVector_str[14] = "2 OS DF Signal Leptons ";
cutFlowVector_str[15] = "mll > 20 GeV ";
cutFlowVector_str[16] = "leading lepton pT ";
cutFlowVector_str[17] = "dphi_min > 1.0 ";
cutFlowVector_str[18] = "dphib < 1.5 ";
cutFlowVector_str[19] = "SR M90 [DF] ";
cutFlowVector_str[20] = "SR M120 [DF] ";
cutFlowVector_str[21] = "SR M100 + 2 jets[DF] ";
cutFlowVector_str[22] = "SR M110 + 2 jets[DF] ";
for(int j=0;j<NCUTS;j++){
if(
(j==0) ||
(j==1 && cut_2leptons_base) ||
(j==2 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu)) ||
(j==3 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS) ||
(j==4 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL) ||
(j==5 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT) ||
(j==6 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe) ||
(j==7 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi) ||
(j==8 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib) ||
(j==9 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT290) ||
(j==10 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee ||cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2120) ||
(j==11 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee ||cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2100 && cut_2jets) ||
(j==12 && cut_2leptons_base && cut_2leptons && (cut_2leptons_ee ||cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2110 && nJets>=2) ||
(j==13 && cut_2leptons && cut_2leptons_emu) ||
(j==14 && cut_2leptons && cut_2leptons_emu && isOS) ||
(j==15 && cut_2leptons && cut_2leptons_emu && isOS && isMLL) ||
(j==16 && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT) ||
(j==17 && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi) ||
(j==18 && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib) ||
(j==19 && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT290) ||
(j==20 && cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2100 && cut_2jets) ||
(j==21 && cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2110 && nJets>=2) ||
(j==22 && cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2120 && nJets>=2) )
cutFlowVector[j]++;
}
//We're now ready to apply the cuts for each signal region
//_numSR1, _numSR2, _numSR3;
if(cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT290) _numSRM90SF += event->weight();
if(cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2100 && cut_2jets) _numSRM100SF += event->weight();
if(cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2110 && nJets>=2) _numSRM110SF += event->weight();
if(cut_2leptons_base && cut_2leptons && (cut_2leptons_ee || cut_2leptons_mumu) && isOS && isMLL && ispT && isZsafe && isdphi && isdphib && cut_MT2120) _numSRM120SF += event->weight();
if(cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT290) _numSRM90DF += event->weight();
if(cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2100 && cut_2jets) _numSRM100DF += event->weight();
if(cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2110 && nJets>=2) _numSRM110DF += event->weight();
if(cut_2leptons_base && cut_2leptons && cut_2leptons_emu && isOS && isMLL && ispT && isdphi && isdphib && cut_MT2120) _numSRM120DF += event->weight();
return;
}
/// Combine the variables of another copy of this analysis (typically on another thread) into this one.
void combine(const Analysis* other)
{
const Analysis_ATLAS_8TeV_2LEPStop_20invfb* specificOther
= dynamic_cast<const Analysis_ATLAS_8TeV_2LEPStop_20invfb*>(other);
if (NCUTS != specificOther->NCUTS) NCUTS = specificOther->NCUTS;
for (int j=0; j<NCUTS; j++) {
cutFlowVector[j] += specificOther->cutFlowVector[j];
cutFlowVector_str[j] = specificOther->cutFlowVector_str[j];
}
_numSRM90SF += specificOther->_numSRM90SF;
_numSRM100SF += specificOther->_numSRM100SF;
_numSRM110SF += specificOther->_numSRM110SF;
_numSRM120SF += specificOther->_numSRM120SF;
_numSRM90DF += specificOther->_numSRM90DF;
_numSRM100DF += specificOther->_numSRM100DF;
_numSRM110DF += specificOther->_numSRM110DF;
_numSRM120DF += specificOther->_numSRM120DF;
}
void collect_results() {
// add_result(SignalRegionData("SR label", n_obs, {n_sig_MC, n_sig_MC_sys}, {n_bkg, n_bkg_err}));
add_result(SignalRegionData("SRM90", 274., {_numSRM90SF + _numSRM90DF, 0.}, {300., 50.}));
add_result(SignalRegionData("SRM100", 3., {_numSRM100SF + _numSRM100DF, 0.}, {5.2, 2.2}));
add_result(SignalRegionData("SRM110", 8., {_numSRM110SF + _numSRM110DF, 0.}, {9.3, 3.5}));
add_result(SignalRegionData("SRM120", 18., {_numSRM120SF + _numSRM120DF, 0.}, {19., 9.}));
return;
}
protected:
void analysis_specific_reset() {
_numSRM90SF=0; _numSRM100SF=0; _numSRM110SF=0; _numSRM120SF=0;
_numSRM90DF=0; _numSRM100DF=0; _numSRM110DF=0; _numSRM120DF=0;
std::fill(cutFlowVector.begin(), cutFlowVector.end(), 0);
}
};
DEFINE_ANALYSIS_FACTORY(ATLAS_8TeV_2LEPStop_20invfb)
}
}
Updated on 2024-07-18 at 13:53:34 +0000