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[GenPartIsoProducer.cc] New plugin for gen-part isolation.
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| // system include files | ||
| #include <memory> | ||
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| // user include files | ||
| #include "FWCore/Framework/interface/Frameworkfwd.h" | ||
| #include "FWCore/Framework/interface/stream/EDProducer.h" | ||
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| #include "FWCore/Framework/interface/Event.h" | ||
| #include "FWCore/Framework/interface/MakerMacros.h" | ||
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| #include "FWCore/ParameterSet/interface/ParameterSet.h" | ||
| #include "FWCore/Utilities/interface/StreamID.h" | ||
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| #include "DataFormats/JetReco/interface/GenJet.h" | ||
| #include "DataFormats/Common/interface/ValueMap.h" | ||
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| #include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h" | ||
| #include "SimDataFormats/GeneratorProducts/interface/GenEventInfoProduct.h" | ||
| #include "DataFormats/PatCandidates/interface/PackedGenParticle.h" | ||
| #include "DataFormats/PatCandidates/interface/CompositeCandidate.h" | ||
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| #include "DataFormats/Math/interface/deltaR.h" | ||
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| #include <tuple> | ||
| #include <string> | ||
| #include <vector> | ||
| #include <TLorentzVector.h> | ||
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| using namespace std; | ||
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| class GenPartIsoProducer : public edm::stream::EDProducer<> { | ||
| public: | ||
| explicit GenPartIsoProducer(const edm::ParameterSet& iConfig) | ||
| : finalGenParticleToken(consumes<reco::GenParticleCollection>(iConfig.getParameter<edm::InputTag>("genPart"))), | ||
| packedGenParticlesToken( | ||
| consumes<pat::PackedGenParticleCollection>(iConfig.getParameter<edm::InputTag>("packedGenPart"))), | ||
| additionalPdgId_(iConfig.getParameter<int>("additionalPdgId")) { | ||
| produces<edm::ValueMap<float>>(); | ||
| } | ||
| ~GenPartIsoProducer() override; | ||
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| static void fillDescriptions(edm::ConfigurationDescriptions& descriptions); | ||
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| private: | ||
| void produce(edm::Event&, const edm::EventSetup&) override; | ||
| float computeIso(TLorentzVector thisPart, | ||
| edm::Handle<pat::PackedGenParticleCollection> packedGenParticles, | ||
| std::set<int> gen_fsrset, | ||
| bool skip_leptons); | ||
| std::vector<float> Lepts_RelIso; | ||
| edm::EDGetTokenT<reco::GenParticleCollection> finalGenParticleToken; | ||
| edm::EDGetTokenT<pat::PackedGenParticleCollection> packedGenParticlesToken; | ||
| int additionalPdgId_; | ||
| }; | ||
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| GenPartIsoProducer::~GenPartIsoProducer() {} | ||
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| void GenPartIsoProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) { | ||
| using namespace edm; | ||
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| auto finalParticles = iEvent.getHandle(finalGenParticleToken); | ||
| auto packedGenParticles = iEvent.getHandle(packedGenParticlesToken); | ||
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| reco::GenParticleCollection::const_iterator genPart; | ||
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| Lepts_RelIso.clear(); | ||
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| for (genPart = finalParticles->begin(); genPart != finalParticles->end(); genPart++) { | ||
| if (abs(genPart->pdgId()) == 11 || abs(genPart->pdgId()) == 13 || abs(genPart->pdgId()) == 15) { | ||
| TLorentzVector lep_dressed; | ||
| lep_dressed.SetPtEtaPhiE(genPart->pt(), genPart->eta(), genPart->phi(), genPart->energy()); | ||
| std::set<int> gen_fsrset; | ||
| for (size_t k = 0; k < packedGenParticles->size(); k++) { | ||
| if ((*packedGenParticles)[k].status() != 1) | ||
| continue; | ||
| if ((*packedGenParticles)[k].pdgId() != 22) | ||
| continue; | ||
| double this_dR_lgamma = reco::deltaR( | ||
| genPart->eta(), genPart->phi(), (*packedGenParticles)[k].eta(), (*packedGenParticles)[k].phi()); | ||
| bool idmatch = false; | ||
| if ((*packedGenParticles)[k].mother(0)->pdgId() == genPart->pdgId()) | ||
| idmatch = true; | ||
| const reco::Candidate* mother = (*packedGenParticles)[k].mother(0); | ||
| for (size_t m = 0; m < mother->numberOfMothers(); m++) { | ||
| if ((*packedGenParticles)[k].mother(m)->pdgId() == genPart->pdgId()) | ||
| idmatch = true; | ||
| } | ||
| if (!idmatch) | ||
| continue; | ||
| if (this_dR_lgamma < 0.3) { | ||
| gen_fsrset.insert(k); | ||
| TLorentzVector gamma; | ||
| gamma.SetPtEtaPhiE((*packedGenParticles)[k].pt(), | ||
| (*packedGenParticles)[k].eta(), | ||
| (*packedGenParticles)[k].phi(), | ||
| (*packedGenParticles)[k].energy()); | ||
| lep_dressed = lep_dressed + gamma; | ||
| } | ||
| } | ||
| float this_GENiso = 0.0; | ||
| TLorentzVector thisLep; | ||
| thisLep.SetPtEtaPhiM(lep_dressed.Pt(), lep_dressed.Eta(), lep_dressed.Phi(), lep_dressed.M()); | ||
| this_GENiso = computeIso(thisLep, packedGenParticles, gen_fsrset, true); | ||
| Lepts_RelIso.push_back(this_GENiso); | ||
| } else if (abs(genPart->pdgId()) == additionalPdgId_) { | ||
| float this_GENiso = 0.0; | ||
| std::set<int> gen_fsrset_nolep; | ||
| TLorentzVector thisPart; | ||
| thisPart.SetPtEtaPhiE(genPart->pt(), genPart->eta(), genPart->phi(), genPart->energy()); | ||
| this_GENiso = computeIso(thisPart, packedGenParticles, gen_fsrset_nolep, false); | ||
| Lepts_RelIso.push_back(this_GENiso); | ||
| } else { | ||
| float this_GENiso = 0.0; | ||
| Lepts_RelIso.push_back(this_GENiso); | ||
| } | ||
| } | ||
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| auto isoV = std::make_unique<edm::ValueMap<float>>(); | ||
| edm::ValueMap<float>::Filler fillerIsoMap(*isoV); | ||
| fillerIsoMap.insert(finalParticles, Lepts_RelIso.begin(), Lepts_RelIso.end()); | ||
| fillerIsoMap.fill(); | ||
| iEvent.put(std::move(isoV)); | ||
| } | ||
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| float GenPartIsoProducer::computeIso(TLorentzVector thisPart, | ||
| edm::Handle<pat::PackedGenParticleCollection> packedGenParticles, | ||
| std::set<int> gen_fsrset, | ||
| bool skip_leptons) { | ||
| double this_GENiso = 0.0; | ||
| for (size_t k = 0; k < packedGenParticles->size(); k++) { | ||
| if ((*packedGenParticles)[k].status() != 1) | ||
| continue; | ||
| if (abs((*packedGenParticles)[k].pdgId()) == 12 || abs((*packedGenParticles)[k].pdgId()) == 14 || | ||
| abs((*packedGenParticles)[k].pdgId()) == 16) | ||
| continue; | ||
| if (reco::deltaR(thisPart.Eta(), thisPart.Phi(), (*packedGenParticles)[k].eta(), (*packedGenParticles)[k].phi()) < | ||
| 0.001) | ||
| continue; | ||
| if (skip_leptons == true) { | ||
| if ((abs((*packedGenParticles)[k].pdgId()) == 11 || abs((*packedGenParticles)[k].pdgId()) == 13)) | ||
| continue; | ||
| if (gen_fsrset.find(k) != gen_fsrset.end()) | ||
| continue; | ||
| } | ||
| double this_dRvL_nolep = | ||
| reco::deltaR(thisPart.Eta(), thisPart.Phi(), (*packedGenParticles)[k].eta(), (*packedGenParticles)[k].phi()); | ||
| if (this_dRvL_nolep < 0.3) { | ||
| this_GENiso = this_GENiso + (*packedGenParticles)[k].pt(); | ||
| } | ||
| } | ||
| this_GENiso = this_GENiso / thisPart.Pt(); | ||
| return this_GENiso; | ||
| } | ||
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| void GenPartIsoProducer::fillDescriptions(edm::ConfigurationDescriptions& descriptions) { | ||
| // Description of external inputs requered by this module | ||
| // genPart: collection of gen particles for which to compute Iso | ||
| // packedGenPart: collection of particles to be used for leptons dressing | ||
| // additionalPdgId: additional particle (besides leptons) for which Iso is computed | ||
| edm::ParameterSetDescription desc; | ||
| desc.add<edm::InputTag>("genPart")->setComment("input physics object collection"); | ||
| desc.add<edm::InputTag>("packedGenPart")->setComment("input stable hadrons collection"); | ||
| desc.add<int>("additionalPdgId")->setComment("additional pdgId for Iso computation"); | ||
| descriptions.addDefault(desc); | ||
| } | ||
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| //define this as a plug-in | ||
| DEFINE_FWK_MODULE(GenPartIsoProducer); |
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