#include <VertexTimeAlgorithmLegacy4D.h>

Inheritance diagram for VertexTimeAlgorithmLegacy4D:

Public Member Functions
void	setEvent (edm::Event &iEvent, edm::EventSetup const &iSetup) override

bool	vertexTime (float &vtxTime, float &vtxTimeError, TransientVertex const &vtx) const override

	VertexTimeAlgorithmLegacy4D (const edm::ParameterSet &conf, edm::ConsumesCollector &iC)

	~VertexTimeAlgorithmLegacy4D () override=default

Public Member Functions inherited from VertexTimeAlgorithmBase
virtual void	fill_vertex_times (std::vector< TransientVertex > &pvs)

VertexTimeAlgorithmBase &	operator= (const VertexTimeAlgorithmBase &)=delete

	VertexTimeAlgorithmBase (const edm::ParameterSet &conf, edm::ConsumesCollector &iC)

	VertexTimeAlgorithmBase (const VertexTimeAlgorithmBase &)=delete

virtual	~VertexTimeAlgorithmBase ()=default

Static Public Member Functions
static void	fillPSetDescription (edm::ParameterSetDescription &iDesc)

Static Public Member Functions inherited from VertexTimeAlgorithmBase
static void	fillPSetDescription (edm::ParameterSetDescription &iDesc)

Detailed Description

Definition at line 10 of file VertexTimeAlgorithmLegacy4D.h.

Constructor & Destructor Documentation

◆ VertexTimeAlgorithmLegacy4D()

VertexTimeAlgorithmLegacy4D::VertexTimeAlgorithmLegacy4D	(	const edm::ParameterSet &	conf,
		edm::ConsumesCollector &	iC
	)

Definition at line 13 of file VertexTimeAlgorithmLegacy4D.cc.

14 : VertexTimeAlgorithmBase(iConfig, iCC) {}

VertexTimeAlgorithmBase::VertexTimeAlgorithmBase

VertexTimeAlgorithmBase(const edm::ParameterSet &conf, edm::ConsumesCollector &iC)

Definition: VertexTimeAlgorithmBase.h:15

◆ ~VertexTimeAlgorithmLegacy4D()

VertexTimeAlgorithmLegacy4D::~VertexTimeAlgorithmLegacy4D ( )

overridedefault

Member Function Documentation

◆ fillPSetDescription()

void VertexTimeAlgorithmLegacy4D::fillPSetDescription ( edm::ParameterSetDescription & iDesc )

static

Definition at line 16 of file VertexTimeAlgorithmLegacy4D.cc.

References VertexTimeAlgorithmBase::fillPSetDescription().

Referenced by PrimaryVertexProducer::fillDescriptions().

                                                                                        {
   VertexTimeAlgorithmBase::fillPSetDescription(iDesc);
 }

◆ setEvent()

void VertexTimeAlgorithmLegacy4D::setEvent	(	edm::Event &	iEvent,
		edm::EventSetup const &	iSetup
	)

overridevirtual

Implements VertexTimeAlgorithmBase.

Definition at line 20 of file VertexTimeAlgorithmLegacy4D.cc.

20 {}

◆ vertexTime()

bool VertexTimeAlgorithmLegacy4D::vertexTime	(	float &	vtxTime,
		float &	vtxTimeError,
		TransientVertex const &	vtx
	)		const

overridevirtual

estimate the vertex time and time uncertainty for transient vertex

returns true when a valid time has been determined, otherwise return false

Implements VertexTimeAlgorithmBase.

Definition at line 22 of file VertexTimeAlgorithmLegacy4D.cc.

References TransientTrackBuilder::defaultInvalidTrackTimeReso, submitPVResolutionJobs::err, mathSSE::sqrt(), hcalRecHitTable_cff::time, L1BJetProducer_cff::vtx, and w().

                                                                                                                   {
   const auto num_track = vtx.originalTracks().size();
   if (num_track == 0) {
     return false;
   }
 
   double sumwt = 0.;
   double sumw = 0.;
 
   for (const auto& trk : vtx.originalTracks()) {
     const double time = trk.timeExt();
     const double err = trk.dtErrorExt();
     if ((time == 0) && (err >= TransientTrackBuilder::defaultInvalidTrackTimeReso))
       continue;  // tracks with no time information, as implemented in TransientTrackBuilder.cc l.17
     const double inverr = err > 0. ? 1.0 / err : 0.;
     const double w = inverr * inverr;
     sumwt += w * time;
     sumw += w;
   }
 
   if (sumw > 0) {
     vtxTime = sumwt / sumw;
     vtxTimeError = 1 / sqrt(sumw);
     return true;
   }
 
   vtxTime = 0;
   vtxTimeError = 1.;
   return false;
 }

Public Member Functions

Static Public Member Functions