DerivationFramework::BPhysPVTools Class Reference

#include <BPhysPVTools.h>

Inheritance diagram for DerivationFramework::BPhysPVTools:

Collaboration diagram for DerivationFramework::BPhysPVTools:

Public Member Functions
	BPhysPVTools (const Trk::V0Tools *v0Tools)
	BPhysPVTools (const Trk::V0Tools *v0Tools, const xAOD::EventInfo *)
void	SetSave3d (bool v)
StatusCode	FillCandExistingVertices (xAOD::VertexContainer *vtxContainer, const xAOD::VertexContainer *pvContainer, int DoVertexType)
void	FillBPhysHelperNULL (xAOD::BPhysHelper &vtx, const xAOD::VertexContainer *PvContainer, xAOD::BPhysHelper::pv_type pvtype, bool do3d=false) const
StatusCode	FillCandwithRefittedVertices (xAOD::VertexContainer *vtxContainer, const xAOD::VertexContainer *pvContainer, xAOD::VertexContainer *refPvContainer, const Analysis::PrimaryVertexRefitter *, size_t in_PV_max, int DoVertexType)
void	DecorateWithNULL (xAOD::VertexContainer *vtxContainer, const xAOD::VertexContainer *pvContainer, int DoVertexType) const
void	DecorateWithDummyVertex (xAOD::VertexContainer *vtxContainer, const xAOD::VertexContainer *pvContainer, const xAOD::Vertex *Dummy, int DoVertexType, bool SetOrignal) const
void	FillBPhysHelper (xAOD::BPhysHelper &vtx, const xAOD::Vertex *refPV, const xAOD::VertexContainer *refPvContainer, xAOD::BPhysHelper::pv_type pvtype, int) const
	Fills the BPhysHelper object with the standard parameters. More...
size_t	FindLowZIndex (const xAOD::BPhysHelper &Obj, const std::vector< const xAOD::Vertex * > &PVlist, const size_t PV_minNTracks=0) const
	Returns the index integer of the vertex with the lowest Z in relation to the given vertex. More...
size_t	FindLowA0Index (const xAOD::BPhysHelper &Obj, const std::vector< const xAOD::Vertex * > &PVlist, const size_t PV_minNTracks=0) const
	Returns the index integer of the vertex with the lowest A0 in relation to the given vertex. More...
size_t	FindHighPtIndex (const std::vector< const xAOD::Vertex * > &PVlist) const
void	SetMinNTracksInPV (size_t PV_minNTracks)
	Set the minimum number of tracks required for primary vertices to be considered for primary vertex association to a secondary vertex. More...
Amg::Vector3D	GetBeamSpot () const
	Get the current beamspot position either from cache or from BeamCondSvc. More...
size_t	FindLowZ0BAIndex (xAOD::BPhysHelper &obj, const std::vector< const xAOD::Vertex * > &PVlist, const size_t PV_minNTracks=0) const
	Find the index for the PV with the lowest distance in z of the SV's DOCA point w.r.t. More...
double	DistInZtoDOCA (xAOD::BPhysHelper &obj, const xAOD::Vertex *vertex) const
	Calculate the distance along z axis between the PV and SV's DOCA point w.r.t. More...
Amg::Vector3D	DocaExtrapToBeamSpot (xAOD::BPhysHelper &obj) const
	Point of DOCA w.r.t. More...
bool	msgLvl (const MSG::Level lvl) const
	Test the output level. More...
MsgStream &	msg () const
	The standard message stream. More...
MsgStream &	msg (const MSG::Level lvl) const
	The standard message stream. More...
void	setLevel (MSG::Level lvl)
	Change the current logging level. More...

Static Public Member Functions
static std::vector< const xAOD::Vertex * >	GetGoodPV (const xAOD::VertexContainer *pvContainer)
	Static method call with DerivationFramework::BPhysDerHelpers::GetGoodPV Returns a std::vector containing only PVs of type 1 and 3 - HighPt and Pileup, which have at least PV_minNTracks tracks. More...
static void	PrepareVertexLinks (xAOD::Vertex *theResult, const xAOD::TrackParticleContainer *importedTrackCollection)

Private Member Functions
void	initMessaging () const
	Initialize our message level and MessageSvc. More...

Private Attributes
const Trk::V0Tools *	m_v0Tools
const xAOD::EventInfo *	m_EvtData
size_t	m_PV_minNTracks
	minimum number of tracks required in PVs considered More...
bool	m_3dCalc
std::string	m_nm
	Message source name. More...
boost::thread_specific_ptr< MsgStream >	m_msg_tls
	MsgStream instance (a std::cout like with print-out levels) More...
std::atomic< IMessageSvc * >	m_imsg { nullptr }
	MessageSvc pointer. More...
std::atomic< MSG::Level >	m_lvl { MSG::NIL }
	Current logging level. More...
std::atomic_flag m_initialized	ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT
	Messaging initialized (initMessaging) More...

Detailed Description

Definition at line 25 of file BPhysPVTools.h.

Constructor & Destructor Documentation

BPhysPVTools() [1/2]

DerivationFramework::BPhysPVTools::BPhysPVTools

(

const Trk::V0Tools *

v0Tools

)

Definition at line 18 of file BPhysPVTools.cxx.

                                                                       :
  AthMessaging("BPhysPVTools"),
  m_v0Tools(v0Tools), m_EvtData(nullptr), m_PV_minNTracks(0),
 m_3dCalc(false)
{
}

BPhysPVTools() [2/2]

DerivationFramework::BPhysPVTools::BPhysPVTools	(	const Trk::V0Tools *	v0Tools,
		const xAOD::EventInfo *	eventInfo
	)

Definition at line 25 of file BPhysPVTools.cxx.

                                                                                                       :
  AthMessaging("BPhysPVTools"),
  m_v0Tools(v0Tools), m_EvtData(eventInfo), m_PV_minNTracks(0),
 m_3dCalc(false)
{
}

Member Function Documentation

DecorateWithDummyVertex()

void DerivationFramework::BPhysPVTools::DecorateWithDummyVertex	(	xAOD::VertexContainer *	vtxContainer,
		const xAOD::VertexContainer *	pvContainer,
		const xAOD::Vertex *	Dummy,
		int	DoVertexType,
		bool	SetOrignal
	)		const

Definition at line 102 of file BPhysPVTools.cxx.

                                                                               {
  const bool doPt   = (DoVertexType & 1) != 0;
  const bool doA0   = (DoVertexType & 2) != 0;
  const bool doZ0   = (DoVertexType & 4) != 0;
  const bool doZ0BA = (DoVertexType & 8) != 0;
 
  xAOD::VertexContainer::iterator vtxItr = vtxContainer->begin();
  for(; vtxItr!=vtxContainer->end(); ++vtxItr) {
    xAOD::BPhysHelper vtx(*vtxItr);
 
    // 1) pT error
    double ptErr = m_v0Tools->pTError( vtx.vtx() );
    BPHYS_CHECK( vtx.setPtErr(ptErr) );
    if(doPt) {
      // 2.a) the first PV with the largest sum pT.
      FillBPhysHelper(vtx, Dummy, pvContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2, 0);
      if(SetOrignal) vtx.setOrigPv(Dummy, pvContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2);
    }
 
    if(doA0) {
      // 2.b) the closest in 3D:
      FillBPhysHelper(vtx, Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_A0, 0);
      if(SetOrignal) vtx.setOrigPv(Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_A0);
    }
 
    if(doZ0) {
      FillBPhysHelper(vtx, Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0, 0);
      if(SetOrignal) vtx.setOrigPv(Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0);
    }
 
    if(doZ0BA) {
      FillBPhysHelper(vtx, Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, 0);
      if(SetOrignal) vtx.setOrigPv(Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA);
    }
  }    
}

DecorateWithNULL()

void DerivationFramework::BPhysPVTools::DecorateWithNULL	(	xAOD::VertexContainer *	vtxContainer,
		const xAOD::VertexContainer *	pvContainer,
		int	DoVertexType
	)		const

Definition at line 141 of file BPhysPVTools.cxx.

                                                                                             {
  const bool doPt   = (DoVertexType & 1) != 0;
  const bool doA0   = (DoVertexType & 2) != 0;
  const bool doZ0   = (DoVertexType & 4) != 0;
  const bool doZ0BA = (DoVertexType & 8) != 0;
  xAOD::VertexContainer::iterator vtxItr = vtxContainer->begin();
  for(; vtxItr!=vtxContainer->end(); ++vtxItr) {
    xAOD::BPhysHelper vtx(*vtxItr);
 
    // 1) pT error
    double ptErr = m_v0Tools->pTError( vtx.vtx() );
    BPHYS_CHECK( vtx.setPtErr(ptErr) );
    if(doPt) {
      // 2.a) the first PV with the largest sum pT.
      FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2, m_3dCalc);
    }
 
    if(doA0) {
      // 2.b) the closest in 3D:
      FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MIN_A0, m_3dCalc);
    }
 
    if(doZ0) {
      FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0, m_3dCalc);
    }
    if(doZ0BA) {
      FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, m_3dCalc);
    }
  }
}

DistInZtoDOCA()

double DerivationFramework::BPhysPVTools::DistInZtoDOCA	(	xAOD::BPhysHelper &	obj,
		const xAOD::Vertex *	vertex
	)		const

Calculate the distance along z axis between the PV and SV's DOCA point w.r.t.

the beamline.

Definition at line 503 of file BPhysPVTools.cxx.

                                                                                                          {
 
  Amg::Vector3D pv    = vertex->position();
  Amg::Vector3D xDOCA = DocaExtrapToBeamSpot(obj);
  Amg::Vector3D vec   = pv - xDOCA;
  return vec.z();
}

DocaExtrapToBeamSpot()

Amg::Vector3D DerivationFramework::BPhysPVTools::DocaExtrapToBeamSpot

(

xAOD::BPhysHelper &

obj

)

const

Point of DOCA w.r.t.

the beamline backward extrapolated along the B candidate's momentum direction.

Definition at line 513 of file BPhysPVTools.cxx.

                                                                                            {
 
  Amg::Vector3D xDOCA(-99999., -99999., -99999.);
  TVector3      totP(obj.totalP());
  Amg::Vector3D pSV(totP.X(), totP.Y(), totP.Z());
  Amg::Vector3D pT(pSV.x(), pSV.y(), 0.);
  if ( pT.mag2() > 0 ) {
    Amg::Vector3D xBS = GetBeamSpot();
    Amg::Vector3D xSV = m_v0Tools->vtx(obj.vtx());
    Amg::Vector3D xT(xSV.x()-xBS.x(), xSV.y()-xBS.y(), 0.);
    xDOCA = xSV - pSV*pT.dot(xT)/pT.mag2();
  } else {
    ATH_MSG_WARNING("DocaExtrapToBeamSpot: pT == 0.");
  }
  return xDOCA;
}

FillBPhysHelper()

void DerivationFramework::BPhysPVTools::FillBPhysHelper	(	xAOD::BPhysHelper &	vtx,
		const xAOD::Vertex *	refPV,
		const xAOD::VertexContainer *	refPvContainer,
		xAOD::BPhysHelper::pv_type	pvtype,
		int	refitCode
	)		const

Fills the BPhysHelper object with the standard parameters.

Definition at line 32 of file BPhysPVTools.cxx.

                                                                                {
 
  BPHYS_CHECK( vtx.setPv      ( PV, PvContainer, pvtype ) );
 
  // cout << "BPhysPVTools::FillBPhysHelper for pvtype = " << pvtype << endl;
  
  // set variables calculated from PV
  if(m_3dCalc){
    BPHYS_CHECK( vtx.setLxyz    ( m_v0Tools->lxyz       (vtx.vtx(), PV), pvtype ) );
    BPHYS_CHECK( vtx.setLxyzErr ( m_v0Tools->lxyzError  (vtx.vtx(), PV), pvtype ) );
  }
  BPHYS_CHECK( vtx.setLxy    ( m_v0Tools->lxy       (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setLxyErr ( m_v0Tools->lxyError  (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setA0     ( m_v0Tools->a0        (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setA0Err  ( m_v0Tools->a0Error   (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setA0xy   ( m_v0Tools->a0xy      (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setA0xyErr( m_v0Tools->a0xyError (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setZ0     ( m_v0Tools->a0z       (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setZ0Err  ( m_v0Tools->a0zError  (vtx.vtx(), PV), pvtype ) );
  BPHYS_CHECK( vtx.setRefitPVStatus  ( refitCode, pvtype ) );
 
}

FillBPhysHelperNULL()

void DerivationFramework::BPhysPVTools::FillBPhysHelperNULL	(	xAOD::BPhysHelper &	vtx,
		const xAOD::VertexContainer *	PvContainer,
		xAOD::BPhysHelper::pv_type	pvtype,
		bool	do3d = false
	)		const

Definition at line 57 of file BPhysPVTools.cxx.

                                                                                {
 
  const xAOD::Vertex* PV = nullptr;
  BPHYS_CHECK( vtx.setPv      ( PV, PvContainer, pvtype ) );
  constexpr float errConst = std::numeric_limits<float>::lowest();
  // set variables claculated from PV
  if(do3d){
    BPHYS_CHECK( vtx.setLxyz    ( errConst, pvtype ) );
    BPHYS_CHECK( vtx.setLxyzErr ( errConst, pvtype ) );
  }
  BPHYS_CHECK( vtx.setLxy    ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setLxyErr ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setA0     ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setA0Err  ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setA0xy   ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setA0xyErr( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setZ0     ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setZ0Err  ( errConst, pvtype ) );
  BPHYS_CHECK( vtx.setRefitPVStatus  ( 0, pvtype ) );
}

FillCandExistingVertices()

StatusCode DerivationFramework::BPhysPVTools::FillCandExistingVertices	(	xAOD::VertexContainer *	vtxContainer,
		const xAOD::VertexContainer *	pvContainer,
		int	DoVertexType
	)

Definition at line 173 of file BPhysPVTools.cxx.

                                                                                                 {
 
 
 
  //----------------------------------------------------
  // decorate the vertex
  //----------------------------------------------------
  // loop over candidates -- Don't apply PV_minNTracks requirement here
  // because it may result in exclusion of the high-pt PV.
  const std::vector<const xAOD::Vertex*> GoodPVs = GetGoodPV(pvContainer);
 
 
  if(GoodPVs.empty() == false) {
 
    const bool doPt   = (DoVertexType & 1) != 0;
    const bool doA0   = (DoVertexType & 2) != 0;
    const bool doZ0   = (DoVertexType & 4) != 0;
    const bool doZ0BA = (DoVertexType & 8) != 0;
 
  xAOD::VertexContainer::iterator vtxItr = vtxContainer->begin();
    for(; vtxItr!=vtxContainer->end(); ++vtxItr) {
      xAOD::BPhysHelper vtx(*vtxItr);
 
      // 1) pT error
      double ptErr = m_v0Tools->pTError( vtx.vtx() );
      BPHYS_CHECK( vtx.setPtErr(ptErr) );
 
      // 2) refit the primary vertex and set the related decorations.
      if(doPt) {
    size_t highPtindex = FindHighPtIndex(GoodPVs); //Should be 0 in PV ordering
    // 2.a) the first PV with the largest sum pT.
    FillBPhysHelper(vtx, GoodPVs[highPtindex], pvContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2, 0);
      }
 
      if(doA0) {
    // 2.b) the closest in 3D:
    size_t lowA0 =  FindLowA0Index(vtx, GoodPVs, m_PV_minNTracks);
    FillBPhysHelper(vtx, GoodPVs[lowA0], pvContainer, xAOD::BPhysHelper::PV_MIN_A0, 0);
      }
 
      if(doZ0) {
    size_t lowZ  = FindLowZIndex(vtx, GoodPVs, m_PV_minNTracks);
    FillBPhysHelper(vtx, GoodPVs[lowZ], pvContainer, xAOD::BPhysHelper::PV_MIN_Z0, 0);
      }
 
      if(doZ0BA) {
    size_t lowZBA = FindLowZ0BAIndex(vtx, GoodPVs, m_PV_minNTracks);
    if ( lowZBA < GoodPVs.size() ) { // safety against vector index out-of-bounds
      FillBPhysHelper(vtx, GoodPVs[lowZBA], pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, 0);
    } else {
      // nothing found -- fill nullptr
      FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, m_3dCalc);
    }
      }
 
    }// end of loop over vertices
  } //end of check for vertices
  else {
    //        cout << "Warning: DerivationFramework::BPhysPVTools::FillCandExistingVertices No Primary Vertices Found trying to decorate wilth dummy \n";
    if(pvContainer->empty()) return StatusCode::FAILURE;
    const xAOD::Vertex* dummy = pvContainer->at(0);  //No good vertices so last vertex must be dummy
    DecorateWithDummyVertex(vtxContainer, pvContainer, dummy, DoVertexType, false);
  }
  return StatusCode::SUCCESS;
}

FillCandwithRefittedVertices()

StatusCode DerivationFramework::BPhysPVTools::FillCandwithRefittedVertices	(	xAOD::VertexContainer *	vtxContainer,
		const xAOD::VertexContainer *	pvContainer,
		xAOD::VertexContainer *	refPvContainer,
		const Analysis::PrimaryVertexRefitter *	pvRefitter,
		size_t	in_PV_max,
		int	DoVertexType
	)

Definition at line 241 of file BPhysPVTools.cxx.

                                                                                                                            {
 
 
  //----------------------------------------------------
  // decorate the vertex
  //----------------------------------------------------
  // loop over candidates -- Don't apply PV_minNTracks requirement here
  // because it may result in exclusion of the high-pt PV.
  std::vector<const xAOD::Vertex*> goodPrimaryVertices = GetGoodPV(pvContainer);
 
  /*
  cout << "BPhysPVTools::FillCandwithRefittedVertices: #PVs: all: "
       << pvContainer->size() << " ref: " << refPvContainer->size()
       << " good: " << goodPrimaryVertices.size()
       << " PV_minNTracks: " << m_PV_minNTracks << endl; 
  */
  if(goodPrimaryVertices.empty() == false) {
 
        size_t pVmax =std::min(in_PV_max, goodPrimaryVertices.size());
        std::vector<const xAOD::Vertex*> refPVvertexes;
        std::vector<xAOD::Vertex*> refPVvertexes_toDelete;
        std::vector<int> exitCode;
        refPVvertexes.reserve(pVmax);
        refPVvertexes_toDelete.reserve(pVmax);
        exitCode.reserve(pVmax);
 
        bool doPt   = (DoVertexType & 1) != 0;
        bool doA0   = (DoVertexType & 2) != 0;
        bool doZ0   = (DoVertexType & 4) != 0;
    bool doZ0BA = (DoVertexType & 8) != 0;
 
        xAOD::VertexContainer::iterator vtxItr = vtxContainer->begin();
        for(; vtxItr!=vtxContainer->end(); ++vtxItr) {
            xAOD::BPhysHelper vtx(*vtxItr);
 
            // 1) pT error
            double ptErr = m_v0Tools->pTError( vtx.vtx() );
            BPHYS_CHECK( vtx.setPtErr(ptErr) );
 
            for(size_t i =0; i < pVmax ; i++) {
                const xAOD::Vertex* oldPV = goodPrimaryVertices.at(i);
                //when set to false this will return nullptr when a new vertex is not required
                int exit =0;
                xAOD::Vertex* refPV = pvRefitter->refitVertex(oldPV, vtx.vtx(), false, &exit);
                exitCode.push_back(exit);
                //I want positioning to match the goodPrimaryVertices
                if(refPV == nullptr){
                   refPVvertexes.push_back(oldPV);
                   refPVvertexes_toDelete.push_back(nullptr);
                }else{
                   refPVvertexes.push_back(refPV);
                   refPVvertexes_toDelete.push_back(refPV);
                }
            }
 
            // 2) refit the primary vertex and set the related decorations.
 
            size_t highPtindex = doPt ? FindHighPtIndex(refPVvertexes) : 9999999; //Should be 0 in PV ordering
            size_t lowA0 = doA0 ?
          FindLowA0Index(vtx, refPVvertexes, m_PV_minNTracks) : 9999998;
            size_t lowZ  = doZ0 ?
          FindLowZIndex(vtx, refPVvertexes, m_PV_minNTracks) : 9999997;
            size_t lowZBA = doZ0BA ?
          FindLowZ0BAIndex(vtx, refPVvertexes, m_PV_minNTracks) : 9999996;
        /*
        cout << "BPhysPVTools::FillCandwithRefittedVertices: in_PV_max/pVMax = "
         << in_PV_max << ", " << pVmax << endl;
        cout << "BPhysPVTools::FillCandwithRefittedVertices: m_PV_minNTracks = "
         << m_PV_minNTracks << endl;
        cout << "BPhysPVTools::FillCandwithRefittedVertices: hPt,lowA0/Z/ZBA = "
         << highPtindex << ", "
         << lowA0 << ", " << lowZ << ", " << lowZBA << " "
         << (lowA0 != lowZ   ? "1!" : "  ")
         << (lowA0 != lowZBA ? "2!" : "  ")
         << (lowZ  != lowZBA ? "3!" : "  ")
         << (highPtindex != lowA0  ? "4!" : "  ")
         << (highPtindex != lowZ   ? "5!" : "  ")
         << (highPtindex != lowZBA ? "6!" : "  ")
         << endl; 
        */
            if(doPt) {
                //Choose old PV container if not refitted
                const xAOD::VertexContainer* ParentContainer =
                    (refPVvertexes_toDelete.at(highPtindex)) ? refPvContainer : pvContainer; 
                if(ParentContainer == refPvContainer) //if refitted add to refitted container
                    refPvContainer->push_back(refPVvertexes_toDelete.at(highPtindex)); // store the new vertex
              
                FillBPhysHelper(vtx, refPVvertexes[highPtindex],
                     ParentContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2, exitCode[highPtindex]);
                vtx.setOrigPv(goodPrimaryVertices[highPtindex], pvContainer, xAOD::BPhysHelper::PV_MAX_SUM_PT2);
            }
 
            if(doA0) {
                const xAOD::VertexContainer* ParentContainer = 
                     (refPVvertexes_toDelete.at(lowA0)) ? refPvContainer : pvContainer; 
                if(ParentContainer == refPvContainer && highPtindex!=lowA0)
                    refPvContainer->push_back(refPVvertexes_toDelete.at(lowA0)); // store the new vertex
                
                FillBPhysHelper(vtx, refPVvertexes[lowA0],
                      ParentContainer, xAOD::BPhysHelper::PV_MIN_A0, exitCode[lowA0]);
                vtx.setOrigPv(goodPrimaryVertices[lowA0], pvContainer, xAOD::BPhysHelper::PV_MIN_A0);
            }
 
 
        // 2.c) the closest in Z:
            if(doZ0) {
 
                const xAOD::VertexContainer* ParentContainer =
                    (refPVvertexes_toDelete.at(lowZ)) ? refPvContainer : pvContainer;
                if(ParentContainer == refPvContainer && highPtindex!=lowZ && lowZ!=lowA0)
                    refPvContainer->push_back(refPVvertexes_toDelete.at(lowZ)); // store the new vertex
                
                FillBPhysHelper(vtx, refPVvertexes[lowZ], 
                      ParentContainer, xAOD::BPhysHelper::PV_MIN_Z0, exitCode[lowZ]);
                vtx.setOrigPv(goodPrimaryVertices[lowZ], pvContainer, xAOD::BPhysHelper::PV_MIN_Z0);
            }
 
        // 2.d) the closest in Z (DOCA w.r.t. beam axis):
            if (doZ0BA) {
          if ( lowZBA < pVmax ) { // safety for vector indices
        const xAOD::VertexContainer* ParentContainer =
          (refPVvertexes_toDelete.at(lowZBA)) ?
          refPvContainer : pvContainer;
        if (ParentContainer == refPvContainer && highPtindex!=lowZBA
            && lowZBA!=lowA0 && lowZBA != lowZ) {
          // store the new vertex
          refPvContainer->push_back(refPVvertexes_toDelete.at(lowZBA));
        }
        FillBPhysHelper(vtx, refPVvertexes[lowZBA],
                ParentContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA,
                exitCode[lowZBA]);
        vtx.setOrigPv(goodPrimaryVertices[lowZBA], pvContainer,
                  xAOD::BPhysHelper::PV_MIN_Z0_BA);
          } else {
        // nothing found -- fill nullptr
        FillBPhysHelperNULL(vtx, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, m_3dCalc);
        // nothing found -- fill dummy vertex (type-0 vertex)
        // if(pvContainer->empty()) return StatusCode::FAILURE;
            // const xAOD::Vertex* dummy = pvContainer->at(pvContainer->size()-1);  //No good vertices so last vertex must be dummy
        // FillBPhysHelper(vtx, dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA, 0);
        // vtx.setOrigPv(Dummy, pvContainer, xAOD::BPhysHelper::PV_MIN_Z0_BA);
          }
        }
 
            //nullptrify ptrs we want to keep so these won't get deleted
            //"delete nullptr" is valid in C++ and does nothing so this is quicker than a lot of if statements
            if(doPt)                     refPVvertexes_toDelete[highPtindex] = nullptr;
            if(doA0)                     refPVvertexes_toDelete[lowA0]       = nullptr;
            if(doZ0)                     refPVvertexes_toDelete[lowZ]        = nullptr;
            if(doZ0BA && lowZBA < pVmax) refPVvertexes_toDelete[lowZBA]      = nullptr;
            //Loop over toDELETE container, anything that is used or was not refitted is nullptr
            //This cleans up all extra vertices that were created and not used
            for(const xAOD::Vertex* ptr : refPVvertexes_toDelete) {
                delete ptr;
            }
            refPVvertexes.clear();// Clear lists of now dangling ptrs
            refPVvertexes_toDelete.clear();
            exitCode.clear();
        }  // end of loop over vertices
 
    } else {
//        cout << "Warning: DerivationFramework::BPhysPVTools::FillCandwithRefittedVertices No Primary Vertices Found trying to decorate wilth dummy \n";
        if(pvContainer->empty()) return StatusCode::FAILURE;
        const xAOD::Vertex* dummy = pvContainer->at(0);  //No good vertices so last vertex must be dummy
        DecorateWithDummyVertex(vtxContainer, pvContainer, dummy, DoVertexType, true);
    }
 
    return StatusCode::SUCCESS;
}

FindHighPtIndex()

size_t DerivationFramework::BPhysPVTools::FindHighPtIndex

(

const std::vector< const xAOD::Vertex * > &

PVlist

)

const

Definition at line 413 of file BPhysPVTools.cxx.

                                                                                                        {
    // it SHOULD be the first one in the collection but it shouldn't take long to do a quick check
    for(size_t i =0; i<PVlist.size(); i++) {
        if(PVlist[i]->vertexType() == xAOD::VxType::PriVtx) return i;
    }
    ATH_MSG_ERROR("High Pt Primary vertex not found - this should not happen");
    return std::numeric_limits<std::size_t>::max(); //This should not happen
}

FindLowA0Index()

size_t DerivationFramework::BPhysPVTools::FindLowA0Index	(	const xAOD::BPhysHelper &	Obj,
		const std::vector< const xAOD::Vertex * > &	PVlist,
		const size_t	PV_minNTracks = 0
	)		const

Returns the index integer of the vertex with the lowest A0 in relation to the given vertex.

Definition at line 422 of file BPhysPVTools.cxx.

                                                               {
    size_t lowA0  = 0;
    if(PVlist.empty()) {
        lowA0=std::numeric_limits<std::size_t>::max();
        return lowA0;
    }
    size_t size = PVlist.size();
    double lowA0calc  = m_v0Tools->a0(Obj.vtx(), PVlist[0]);
    for(size_t i =1; i<size; i++) {
      if ( PVlist[i]->nTrackParticles() >= PV_minNTracks ) {
    double a0 =  m_v0Tools->a0(Obj.vtx(), PVlist[i]);
    if(a0 < lowA0calc) {
      lowA0calc = a0;
      lowA0 =i;
    }
      }
    }
    return lowA0;
}

FindLowZ0BAIndex()

size_t DerivationFramework::BPhysPVTools::FindLowZ0BAIndex	(	xAOD::BPhysHelper &	obj,
		const std::vector< const xAOD::Vertex * > &	PVlist,
		const size_t	PV_minNTracks = 0
	)		const

Find the index for the PV with the lowest distance in z of the SV's DOCA point w.r.t.

the beamline and the PV.

Definition at line 483 of file BPhysPVTools.cxx.

                                                                 {
  
  size_t ilowZ0BA   = std::numeric_limits<std::size_t>::max();
  double lowZ0BAcalc = std::numeric_limits<double>::max(); 
  for (size_t i = 0; i<PVlist.size(); ++i) {
    if ( PVlist[i]->nTrackParticles() >= PV_minNTracks ) {
      double z0BA =  m_v0Tools->a0(obj.vtx(), PVlist[i]);
      if (z0BA < lowZ0BAcalc) {
    lowZ0BAcalc = z0BA;
    ilowZ0BA = i;
      }
    }
  }
  return ilowZ0BA;
}

FindLowZIndex()

size_t DerivationFramework::BPhysPVTools::FindLowZIndex	(	const xAOD::BPhysHelper &	Obj,
		const std::vector< const xAOD::Vertex * > &	PVlist,
		const size_t	PV_minNTracks = 0
	)		const

Returns the index integer of the vertex with the lowest Z in relation to the given vertex.

Definition at line 80 of file BPhysPVTools.cxx.

                                                              {
  size_t lowZ  = 0;
  if(PVlist.empty()) {
    lowZ=std::numeric_limits<std::size_t>::max();
    return lowZ;
  }
  size_t size = PVlist.size();
  double lowA0zcalc = fabs(m_v0Tools->a0z       (Obj.vtx(), PVlist[0]));
  for(size_t i =1; i<size; i++) {
    if ( PVlist[i]->nTrackParticles() >= PV_minNTracks ) {
      double a0z =  fabs(m_v0Tools->a0z(Obj.vtx(), PVlist[i]));
      if(a0z < lowA0zcalc) {
    lowA0zcalc = a0z;
    lowZ =i;
      }
    }
  }
  return lowZ;
}

GetBeamSpot()

Amg::Vector3D DerivationFramework::BPhysPVTools::GetBeamSpot

(

)

const

Get the current beamspot position either from cache or from BeamCondSvc.

Before processing a new event, make sure to call GetBeamSpot();

Definition at line 472 of file BPhysPVTools.cxx.

                                                               {
 
  if(m_EvtData) return Amg::Vector3D(m_EvtData->beamPosX(), m_EvtData->beamPosY(), m_EvtData->beamPosZ());
  else {
    static const Amg::Vector3D defaultBS(-10000.,-10000.,-10000.);
    return defaultBS;
  } 
}

GetGoodPV()

vector< const xAOD::Vertex * > DerivationFramework::BPhysPVTools::GetGoodPV ( const xAOD::VertexContainer *  pvContainer )

static

Static method call with DerivationFramework::BPhysDerHelpers::GetGoodPV Returns a std::vector containing only PVs of type 1 and 3 - HighPt and Pileup, which have at least PV_minNTracks tracks.

Definition at line 444 of file BPhysPVTools.cxx.

                                                                                                           {
    typedef xAOD::VxType::VertexType VertexType;
    VertexType Pvtx = xAOD::VxType::PriVtx;
    VertexType Pileupvtx = xAOD::VxType::PileUp;
    std::vector<const xAOD::Vertex*> goodPrimaryVertices;
    goodPrimaryVertices.reserve(pvContainer->size());
 
    for (auto ptr = pvContainer->begin(); ptr!= pvContainer->end(); ++ptr) {
        VertexType thistype = (*ptr)->vertexType();
        if ( thistype == Pileupvtx || thistype == Pvtx ) {
      goodPrimaryVertices.push_back(*ptr);
        } else {
//             cout << "vertex type  " << thistype << endl;
        }
    }
    return goodPrimaryVertices;
}

initMessaging()

void AthMessaging::initMessaging ( ) const

privateinherited

Initialize our message level and MessageSvc.

This method should only be called once.

Definition at line 39 of file AthMessaging.cxx.

{
  m_imsg = Athena::getMessageSvc();
  m_lvl = m_imsg ?
    static_cast<MSG::Level>( m_imsg.load()->outputLevel(m_nm) ) :
    MSG::INFO;
}

msg() [1/2]

MsgStream & AthMessaging::msg ( ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 164 of file AthMessaging.h.

{
  MsgStream* ms = m_msg_tls.get();
  if (!ms) {
    if (!m_initialized.test_and_set()) initMessaging();
    ms = new MsgStream(m_imsg,m_nm);
    m_msg_tls.reset( ms );
  }
 
  ms->setLevel (m_lvl);
  return *ms;
}

msg() [2/2]

MsgStream & AthMessaging::msg ( const MSG::Level  lvl ) const

inlineinherited

The standard message stream.

Returns a reference to the default message stream May not be invoked before sysInitialize() has been invoked.

Definition at line 179 of file AthMessaging.h.

{ return msg() << lvl; }

msgLvl()

bool AthMessaging::msgLvl ( const MSG::Level  lvl ) const

inlineinherited

Test the output level.

Parameters

lvl	The message level to test against

Returns

boolean Indicating if messages at given level will be printed

Return values

true	Messages at level "lvl" will be printed

Definition at line 151 of file AthMessaging.h.

{
  if (!m_initialized.test_and_set()) initMessaging();
  if (m_lvl <= lvl) {
    msg() << lvl;
    return true;
  } else {
    return false;
  }
}

PrepareVertexLinks()

void DerivationFramework::BPhysPVTools::PrepareVertexLinks ( xAOD::Vertex *  theResult, const xAOD::TrackParticleContainer *  importedTrackCollection  )

static

Definition at line 530 of file BPhysPVTools.cxx.

{
  std::vector<ElementLink<DataVector<xAOD::TrackParticle> > > newLinkVector;
  const auto &trkprtl = theResult->trackParticleLinks();
  for(unsigned int i=0; i< trkprtl.size(); i++)
  {
      ElementLink<DataVector<xAOD::TrackParticle> > mylink=trkprtl[i]; //makes a copy (non-const)
      mylink.setStorableObject(*importedTrackCollection, true);
      newLinkVector.push_back( mylink );
  }
  theResult->clearTracks();
  theResult->setTrackParticleLinks( newLinkVector );
}

setLevel()

void AthMessaging::setLevel ( MSG::Level  lvl )

inherited

Change the current logging level.

Use this rather than msg().setLevel() for proper operation with MT.

Definition at line 28 of file AthMessaging.cxx.

{
  m_lvl = lvl;
}

SetMinNTracksInPV()

void DerivationFramework::BPhysPVTools::SetMinNTracksInPV

(

size_t

PV_minNTracks

)

Set the minimum number of tracks required for primary vertices to be considered for primary vertex association to a secondary vertex.

Note that this requirement will not be applied for finding the vertex with the highest pT sum (FindHighPtIndex()) since it would possibly exclude this vertex which has been marked earlier in the tool chain.

Definition at line 464 of file BPhysPVTools.cxx.

{
 
  m_PV_minNTracks = PV_minNTracks;
}

SetSave3d()

void DerivationFramework::BPhysPVTools::SetSave3d ( bool  v )

inline

Definition at line 40 of file BPhysPVTools.h.

{ m_3dCalc =v; }

Member Data Documentation

ATLAS_THREAD_SAFE

std::atomic_flag m_initialized AthMessaging::ATLAS_THREAD_SAFE = ATOMIC_FLAG_INIT

mutableprivateinherited

Messaging initialized (initMessaging)

Definition at line 141 of file AthMessaging.h.

m_3dCalc

bool DerivationFramework::BPhysPVTools::m_3dCalc

private

Definition at line 34 of file BPhysPVTools.h.

m_EvtData

const xAOD::EventInfo* DerivationFramework::BPhysPVTools::m_EvtData

private

Definition at line 29 of file BPhysPVTools.h.

m_imsg

std::atomic<IMessageSvc*> AthMessaging::m_imsg { nullptr }

mutableprivateinherited

MessageSvc pointer.

Definition at line 135 of file AthMessaging.h.

m_lvl

std::atomic<MSG::Level> AthMessaging::m_lvl { MSG::NIL }

mutableprivateinherited

Current logging level.

Definition at line 138 of file AthMessaging.h.

m_msg_tls

boost::thread_specific_ptr<MsgStream> AthMessaging::m_msg_tls

mutableprivateinherited

MsgStream instance (a std::cout like with print-out levels)

Definition at line 132 of file AthMessaging.h.

m_nm

std::string AthMessaging::m_nm

privateinherited

Message source name.

Definition at line 129 of file AthMessaging.h.

m_PV_minNTracks

size_t DerivationFramework::BPhysPVTools::m_PV_minNTracks

private

minimum number of tracks required in PVs considered

Definition at line 32 of file BPhysPVTools.h.

m_v0Tools

const Trk::V0Tools* DerivationFramework::BPhysPVTools::m_v0Tools

private

Definition at line 28 of file BPhysPVTools.h.

---

The documentation for this class was generated from the following files:

• BPhysPVTools.h
• BPhysPVTools.cxx