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#ifndef CommonTools_ParticleFlow_IPCutPFCandidateSelectorDefinition
#define CommonTools_ParticleFlow_IPCutPFCandidateSelectorDefinition
/**
\class pf2pat::IPCutPFCandidateSelectorDefinition IPCutPFCandidateSelectorDefinition.h "CommonTools/ParticleFlow/interface/IPCutPFCandidateSelectorDefinition.h"
\brief Selects PFCandidates basing on their compatibility with vertex
\author Giovanni Petrucciani
\version $Id: IPCutPFCandidateSelectorDefinition.h,v 1.2 2011/04/06 12:12:38 rwolf Exp $
*/
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/ConsumesCollector.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "DataFormats/ParticleFlowCandidate/interface/PFCandidateFwd.h"
#include "DataFormats/ParticleFlowCandidate/interface/PFCandidate.h"
#include "CommonTools/ParticleFlow/interface/PFCandidateSelectorDefinition.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
#include "DataFormats/GsfTrackReco/interface/GsfTrack.h"
namespace pf2pat {
struct IPCutPFCandidateSelectorDefinition : public PFCandidateSelectorDefinition {
IPCutPFCandidateSelectorDefinition(const edm::ParameterSet &cfg, edm::ConsumesCollector &&iC)
: verticesToken_(iC.consumes<reco::VertexCollection>(cfg.getParameter<edm::InputTag>("vertices"))),
d0Cut_(cfg.getParameter<double>("d0Cut")),
dzCut_(cfg.getParameter<double>("dzCut")),
dtCut_(cfg.getParameter<double>("dtCut")),
d0SigCut_(cfg.getParameter<double>("d0SigCut")),
dzSigCut_(cfg.getParameter<double>("dzSigCut")),
dtSigCut_(cfg.getParameter<double>("dtSigCut")) {}
static void fillPSetDescription(edm::ParameterSetDescription &desc) {
desc.add<edm::InputTag>("vertices", edm::InputTag(""));
desc.add<double>("d0Cut", 0.2)->setComment("transverse IP");
desc.add<double>("dzCut", 0.5)->setComment("longitudingal IP");
desc.add<double>("dtCut", -1.0)->setComment("time");
desc.add<double>("d0SigCut", 99.)->setComment("transverse IP significance");
desc.add<double>("dzSigCut", 99.)->setComment("longitudingal IP significance");
desc.add<double>("dtSigCut", -1.0)->setComment("time significance");
}
void select(const HandleToCollection &hc, const edm::Event &e, const edm::EventSetup &s) {
selected_.clear();
edm::Handle<reco::VertexCollection> vertices;
e.getByToken(verticesToken_, vertices);
if (vertices->empty())
return;
const reco::Vertex &vtx = (*vertices)[0];
double vt = vtx.t();
double vte = vtx.tError();
unsigned key = 0;
for (collection::const_iterator pfc = hc->begin(); pfc != hc->end(); ++pfc, ++key) {
bool passing = true;
const reco::Track *tk = nullptr;
if (pfc->gsfTrackRef().isNonnull())
tk = pfc->gsfTrackRef().get();
else if (pfc->trackRef().isNonnull())
tk = pfc->trackRef().get();
if (tk != nullptr) {
double d0 = fabs(tk->dxy(vtx.position()));
double dz = fabs(tk->dz(vtx.position()));
double d0e = hypot(tk->dxyError(), hypot(vtx.xError(), vtx.yError()));
double dze = hypot(tk->dzError(), vtx.zError());
if (d0Cut_ > 0 && d0 > d0Cut_)
passing = false;
if (dzCut_ > 0 && dz > dzCut_)
passing = false;
if (d0SigCut_ > 0 && d0e > 0 && d0 / d0e > d0SigCut_)
passing = false;
if (dzSigCut_ > 0 && dze > 0 && dz / dze > dzSigCut_)
passing = false;
}
double pfct = pfc->time();
double pfcte = pfc->timeError();
double dt = fabs(pfct - vt);
double dte = std::sqrt(pfcte * pfcte + vte * vte);
if (dtCut_ > 0 && pfcte > 0 && vte > 0 && dt > dtCut_)
passing = false;
if (dtSigCut_ > 0 && pfcte > 0 && vte > 0 && dt / dte > dtSigCut_)
passing = false;
if (passing) {
selected_.push_back(reco::PFCandidate(*pfc));
reco::PFCandidatePtr ptrToMother(hc, key);
if (pfc->numberOfSourceCandidatePtrs() > 0) {
selected_.back().setSourceCandidatePtr(edm::Ptr<reco::PFCandidate>(pfc->sourceCandidatePtr(0)));
} else {
selected_.back().setSourceCandidatePtr(ptrToMother);
}
}
}
}
private:
edm::EDGetTokenT<reco::VertexCollection> verticesToken_;
double d0Cut_;
double dzCut_;
double dtCut_;
double d0SigCut_;
double dzSigCut_;
double dtSigCut_;
};
} // namespace pf2pat
#endif
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