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avoid duplicates in HLTPMMassFilter plugin [13_0_X] #40919

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Mar 3, 2023
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Merged

avoid duplicates in HLTPMMassFilter plugin [13_0_X] #40919

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58 changes: 26 additions & 32 deletions HLTrigger/Egamma/plugins/HLTPMMassFilter.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,9 @@
*/
#include "HLTPMMassFilter.h"

#include <cstdlib>
#include <cmath>

//
// constructors and destructor
//
Expand Down Expand Up @@ -79,7 +82,6 @@ bool HLTPMMassFilter::hltFilter(edm::Event& iEvent,
std::vector<TLorentzVector> pEleCh1;
std::vector<TLorentzVector> pEleCh2;
std::vector<double> charge;
std::vector<double> etaOrig;

if (isElectron1_ && isElectron2_) {
Ref<ElectronCollection> refele;
Expand All @@ -95,25 +97,18 @@ bool HLTPMMassFilter::hltFilter(edm::Event& iEvent,
charge.push_back(refele->charge());
}

std::vector<bool> save_cand(electrons.size(), true);
for (unsigned int jj = 0; jj < electrons.size(); jj++) {
TLorentzVector p1Ele = pEleCh1.at(jj);
for (unsigned int ii = jj + 1; ii < electrons.size(); ii++) {
TLorentzVector p2Ele = pEleCh1.at(ii);

if (fabs(p1Ele.E() - p2Ele.E()) < 0.00001)
continue;
if (reqOppCharge_ && charge[jj] * charge[ii] > 0)
continue;

TLorentzVector pTot = p1Ele + p2Ele;
double mass = pTot.M();

if (mass >= lowerMassCut_ && mass <= upperMassCut_) {
if (isGoodPair(pEleCh1[jj], pEleCh1[ii])) {
n++;
refele = electrons[ii];
filterproduct.addObject(TriggerElectron, refele);
refele = electrons[jj];
filterproduct.addObject(TriggerElectron, refele);
for (auto const idx : {jj, ii}) {
if (save_cand[idx])
filterproduct.addObject(TriggerElectron, electrons[idx]);
save_cand[idx] = false;
}
}
}
}
Expand All @@ -134,38 +129,37 @@ bool HLTPMMassFilter::hltFilter(edm::Event& iEvent,

TLorentzVector pscEle = approxMomAtVtx(theMagField, vertexPos, sc, -1);
pEleCh2.push_back(pscEle);
etaOrig.push_back(sc->eta());
}

std::vector<bool> save_cand(scs.size(), true);
for (unsigned int jj = 0; jj < scs.size(); jj++) {
TLorentzVector p1Ele = pEleCh1.at(jj);
for (unsigned int ii = 0; ii < scs.size(); ii++) {
TLorentzVector p2Ele = pEleCh2.at(ii);

if (fabs(p1Ele.E() - p2Ele.E()) < 0.00001)
continue;

TLorentzVector pTot = p1Ele + p2Ele;
double mass = pTot.M();

if (mass >= lowerMassCut_ && mass <= upperMassCut_) {
for (unsigned int ii = jj + 1; ii < scs.size(); ii++) {
if (isGoodPair(pEleCh1[jj], pEleCh2[ii]) or isGoodPair(pEleCh2[jj], pEleCh1[ii])) {
n++;
refsc = scs[ii];
filterproduct.addObject(TriggerCluster, refsc);
refsc = scs[jj];
filterproduct.addObject(TriggerCluster, refsc);
for (auto const idx : {jj, ii}) {
if (save_cand[idx])
filterproduct.addObject(TriggerCluster, scs[idx]);
save_cand[idx] = false;
}
}
}
}
}

// filter decision
bool accept(n >= nZcandcut_);
// if (accept) std::cout << "n size = " << n << std::endl;

return accept;
}

bool HLTPMMassFilter::isGoodPair(TLorentzVector const& v1, TLorentzVector const& v2) const {
if (std::abs(v1.E() - v2.E()) < 0.00001)
return false;

auto const mass = (v1 + v2).M();
return (mass >= lowerMassCut_ and mass <= upperMassCut_);
}

TLorentzVector HLTPMMassFilter::approxMomAtVtx(const MagneticField& magField,
const GlobalPoint& xvert,
const reco::SuperClusterRef sc,
Expand Down
2 changes: 2 additions & 0 deletions HLTrigger/Egamma/plugins/HLTPMMassFilter.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,8 @@ class HLTPMMassFilter : public HLTFilter {
static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);

private:
bool isGoodPair(TLorentzVector const& v1, TLorentzVector const& v2) const;

TLorentzVector approxMomAtVtx(const MagneticField& magField,
const GlobalPoint& xvert,
const reco::SuperClusterRef sc,
Expand Down