ShipMCTrack Class Reference

#include <ShipMCTrack.h>

Inheritance diagram for ShipMCTrack:

Collaboration diagram for ShipMCTrack:

Public Member Functions
	ShipMCTrack ()
	ShipMCTrack (Int_t pdgCode, Int_t motherID, Double_t px, Double_t py, Double_t pz, Double_t E, Double_t x, Double_t y, Double_t z, Double_t t, Int_t nPoints, Double_t w)
	ShipMCTrack (const ShipMCTrack &track)
	ShipMCTrack (TParticle *particle)
virtual	~ShipMCTrack ()
void	Print (Int_t iTrack=0) const
Int_t	GetPdgCode () const
Int_t	GetMotherId () const
Double_t	GetPx () const
Double_t	GetPy () const
Double_t	GetPz () const
Double_t	GetStartX () const
Double_t	GetStartY () const
Double_t	GetStartZ () const
Double_t	GetStartT () const
void	SetProcID (Int_t i)
Int_t	GetProcID () const
TString	GetProcName () const
Double_t	GetMass () const
Double_t	GetEnergy () const
Double_t	GetPt () const
Double_t	GetP () const
Double_t	GetRapidity () const
void	MultiplyWeight (Double_t w)
void	SetWeight (Double_t w)
Double_t	GetWeight () const
void	GetMomentum (TVector3 &momentum)
void	Get4Momentum (TLorentzVector &momentum)
void	GetStartVertex (TVector3 &vertex)
Int_t	GetNPoints (DetectorId detId) const
void	SetMotherId (Int_t id)
void	SetNPoints (Int_t iDet, Int_t np)

Private Member Functions
	ClassDef (ShipMCTrack, 8)

Private Attributes
Int_t	fPdgCode
Int_t	fMotherId
Double32_t	fPx
Double32_t	fPy
Double32_t	fPz
Double32_t	fM
Double32_t	fStartX
Double32_t	fStartY
Double32_t	fStartZ
Double32_t	fStartT
Double32_t	fW
Int_t	fProcID
Int_t	fNPoints

Detailed Description

Definition at line 26 of file ShipMCTrack.h.

Constructor & Destructor Documentation

ShipMCTrack() [1/4]

ShipMCTrack::ShipMCTrack

(

)

Default constructor

Definition at line 13 of file ShipMCTrack.cxx.

  : TObject(),
    fPdgCode(0),
    fMotherId(-1),
    fPx(0.),
    fPy(0.),
    fPz(0.),
    fM(-1.),
    fStartX(0.),
    fStartY(0.),
    fStartZ(0.),
    fStartT(0.),
    fNPoints(0),
    fW(1.),
    fProcID(44)
{
}

ShipMCTrack() [2/4]

ShipMCTrack::ShipMCTrack	(	Int_t	pdgCode,
		Int_t	motherID,
		Double_t	px,
		Double_t	py,
		Double_t	pz,
		Double_t	E,
		Double_t	x,
		Double_t	y,
		Double_t	z,
		Double_t	t,
		Int_t	nPoints,
		Double_t	w
	)

Standard constructor

Definition at line 35 of file ShipMCTrack.cxx.

  : TObject(),
    fPdgCode(pdgCode),
    fMotherId(motherId),
    fPx(px),
    fPy(py),
    fPz(pz),
    fM(M),
    fStartX(x),
    fStartY(y),
    fStartZ(z),
    fStartT(t),
    fNPoints(nPoints),
    fW(w)
{
}

ShipMCTrack() [3/4]

ShipMCTrack::ShipMCTrack

(

const ShipMCTrack &

track

)

Copy constructor

Definition at line 58 of file ShipMCTrack.cxx.

  : TObject(track),
    fPdgCode(track.fPdgCode),
    fMotherId(track.fMotherId),
    fPx(track.fPx),
    fPy(track.fPy),
    fPz(track.fPz),
    fM(track.fM),
    fStartX(track.fStartX),
    fStartY(track.fStartY),
    fStartZ(track.fStartZ),
    fStartT(track.fStartT),
    fNPoints(track.fNPoints),
    fProcID(track.GetProcID()),
    fW(track.GetWeight())
{
}

ShipMCTrack() [4/4]

ShipMCTrack::ShipMCTrack

(

TParticle *

particle

)

Constructor from TParticle

Definition at line 80 of file ShipMCTrack.cxx.

  : TObject(),
    fPdgCode(part->GetPdgCode()),
    fMotherId(part->GetMother(0)),
    fPx(part->Px()),
    fPy(part->Py()),
    fPz(part->Pz()),
    fM([](const TParticle* p) {
        Double_t m2 = p->Energy() * p->Energy() - p->P() * p->P();
        if (m2 >= 0.) return TMath::Sqrt(m2);
        // Tiny negative: numerical noise for on-shell massless particle
        Double_t e2 = p->Energy() * p->Energy();
        if (-m2 < 1e-10 * e2) return 0.;
        // Genuinely spacelike (virtual photon): store negative mass (ROOT
        // convention)
        return -TMath::Sqrt(-m2);
    }(part)),
    fStartX(part->Vx()),
    fStartY(part->Vy()),
    fStartZ(part->Vz()),
    fStartT(part->T()*1e09),
    fNPoints(0),
    fProcID(part->GetUniqueID()),
    fW(part->GetWeight())
{
}

~ShipMCTrack()

ShipMCTrack::~ShipMCTrack ( )

virtual

Destructor

Definition at line 111 of file ShipMCTrack.cxx.

{ }

Member Function Documentation

ClassDef()

ShipMCTrack::ClassDef ( ShipMCTrack  , 8    )

private

Get4Momentum()

void ShipMCTrack::Get4Momentum ( TLorentzVector &  momentum )

inline

Definition at line 146 of file ShipMCTrack.h.

{
  momentum.SetXYZT(fPx,fPy,fPz,GetEnergy());
}

GetEnergy()

Double_t ShipMCTrack::GetEnergy

(

)

const

Definition at line 130 of file ShipMCTrack.cxx.

{
  if (fM<0){
// older data, mass not made persistent
   Double_t mass = GetMass();
   return TMath::Sqrt(mass*mass + fPx*fPx + fPy*fPy + fPz*fPz );
  }else{
   if (fPdgCode==22){return TMath::Sqrt(fPx*fPx + fPy*fPy + fPz*fPz );}
   return TMath::Sqrt(fM*fM + fPx*fPx + fPy*fPy + fPz*fPz );
  }
}

GetMass()

Double_t ShipMCTrack::GetMass

(

)

const

Definition at line 142 of file ShipMCTrack.cxx.

{
  if (fM<0){
// older data, mass not made persistent
   if ( TDatabasePDG::Instance() ) {
    TParticlePDG* particle = TDatabasePDG::Instance()->GetParticle(fPdgCode);
    if ( particle ) { return particle->Mass(); }
    else { return 0.; }
   }
  }else{
   if (!std::isnan(fM)) { return fM; }
   else{
    if ( TDatabasePDG::Instance() ) {
     TParticlePDG* particle = TDatabasePDG::Instance()->GetParticle(fPdgCode);
     if ( particle && !std::isnan(particle->Mass()) ) { return particle->Mass(); }
     else { return 0.; }
    }
   }
  }
}

GetMomentum()

void ShipMCTrack::GetMomentum ( TVector3 &  momentum )

inline

Definition at line 140 of file ShipMCTrack.h.

{
  momentum.SetXYZ(fPx,fPy,fPz);
}

GetMotherId()

Int_t ShipMCTrack::GetMotherId ( ) const

inline

Definition at line 59 of file ShipMCTrack.h.

{ return fMotherId; }

GetNPoints()

Int_t ShipMCTrack::GetNPoints

(

DetectorId

detId

)

const

Accessors to the number of MCPoints in the detectors

Definition at line 186 of file ShipMCTrack.cxx.

{
/*  // TODO: Where does this come from
  if      ( detId == kREF  ) { return (  fNPoints &   1); }
  else if ( detId == kTutDet  ) { return ( (fNPoints & ( 7 <<  1) ) >>  1); }
  else if ( detId == kFairRutherford ) { return ( (fNPoints & (31 <<  4) ) >>  4); }
  else {
    LOG(ERROR) << "Unknown detector ID " << detId ;
    return 0;
  }
*/
   return 0;
}

GetP()

Double_t ShipMCTrack::GetP ( ) const

inline

Definition at line 73 of file ShipMCTrack.h.

{ return TMath::Sqrt(fPx*fPx+fPy*fPy+fPz*fPz); }

GetPdgCode()

Int_t ShipMCTrack::GetPdgCode ( ) const

inline

Accessors

Definition at line 58 of file ShipMCTrack.h.

{ return fPdgCode; }

GetProcID()

Int_t ShipMCTrack::GetProcID ( ) const

inline

Definition at line 68 of file ShipMCTrack.h.

{ return fProcID; }

GetProcName()

TString ShipMCTrack::GetProcName ( ) const

inline

Definition at line 69 of file ShipMCTrack.h.

{ return TMCProcessName[fProcID]; }

GetPt()

Double_t ShipMCTrack::GetPt ( ) const

inline

Definition at line 72 of file ShipMCTrack.h.

{ return TMath::Sqrt(fPx*fPx+fPy*fPy); }

GetPx()

Double_t ShipMCTrack::GetPx ( ) const

inline

Definition at line 60 of file ShipMCTrack.h.

{ return fPx; }

GetPy()

Double_t ShipMCTrack::GetPy ( ) const

inline

Definition at line 61 of file ShipMCTrack.h.

{ return fPy; }

GetPz()

Double_t ShipMCTrack::GetPz ( ) const

inline

Definition at line 62 of file ShipMCTrack.h.

{ return fPz; }

GetRapidity()

Double_t ShipMCTrack::GetRapidity

(

)

const

Definition at line 174 of file ShipMCTrack.cxx.

{
  Double_t e = GetEnergy();
  Double_t y = 0.5 * TMath::Log( (e+fPz) / (e-fPz) );
  return y;
}

GetStartT()

Double_t ShipMCTrack::GetStartT ( ) const

inline

Definition at line 66 of file ShipMCTrack.h.

{ return fStartT; }

GetStartVertex()

void ShipMCTrack::GetStartVertex ( TVector3 &  vertex )

inline

Definition at line 152 of file ShipMCTrack.h.

{
  vertex.SetXYZ(fStartX,fStartY,fStartZ);
}

GetStartX()

Double_t ShipMCTrack::GetStartX ( ) const

inline

Definition at line 63 of file ShipMCTrack.h.

{ return fStartX; }

GetStartY()

Double_t ShipMCTrack::GetStartY ( ) const

inline

Definition at line 64 of file ShipMCTrack.h.

{ return fStartY; }

GetStartZ()

Double_t ShipMCTrack::GetStartZ ( ) const

inline

Definition at line 65 of file ShipMCTrack.h.

{ return fStartZ; }

GetWeight()

Double_t ShipMCTrack::GetWeight

(

)

const

Definition at line 166 of file ShipMCTrack.cxx.

{
  return fW;
}

MultiplyWeight()

void ShipMCTrack::MultiplyWeight ( Double_t  w )

inline

Definition at line 75 of file ShipMCTrack.h.

{fW = fW*w;}

Print()

void ShipMCTrack::Print

(

Int_t

iTrack = 0

)

const

Output to screen

Definition at line 117 of file ShipMCTrack.cxx.

{
  LOG(DEBUG) << "Track " << trackId << ", mother : " << fMotherId << ", Type "
             << fPdgCode << ", momentum (" << fPx << ", " << fPy << ", "
             << fPz << ") GeV" ;
 /* LOG(DEBUG2) << "       Ref " << GetNPoints(kREF)
              << ", TutDet " << GetNPoints(kTutDet)
              << ", Rutherford " << GetNPoints(kFairRutherford) ;
*/
}

SetMotherId()

void ShipMCTrack::SetMotherId ( Int_t  id )

inline

Modifiers

Definition at line 88 of file ShipMCTrack.h.

{ fMotherId = id; }

SetNPoints()

void ShipMCTrack::SetNPoints	(	Int_t	iDet,
		Int_t	np
	)

Definition at line 204 of file ShipMCTrack.cxx.

{
/*
  if ( iDet == kREF ) {
    if      ( nPoints < 0 ) { nPoints = 0; }
    else if ( nPoints > 1 ) { nPoints = 1; }
    fNPoints = ( fNPoints & ( ~ 1 ) )  |  nPoints;
  }
 
  else if ( iDet == kTutDet ) {
    if      ( nPoints < 0 ) { nPoints = 0; }
    else if ( nPoints > 7 ) { nPoints = 7; }
    fNPoints = ( fNPoints & ( ~ (  7 <<  1 ) ) )  |  ( nPoints <<  1 );
  }
 
  else if ( iDet == kFairRutherford ) {
    if      ( nPoints <  0 ) { nPoints =  0; }
    else if ( nPoints > 31 ) { nPoints = 31; }
    fNPoints = ( fNPoints & ( ~ ( 31 <<  4 ) ) )  |  ( nPoints <<  4 );
  }
 
  else LOG(ERROR) << "Unknown detector ID "  << iDet ;
*/
}

SetProcID()

void ShipMCTrack::SetProcID ( Int_t  i )

inline

Definition at line 67 of file ShipMCTrack.h.

{ fProcID = i; }

SetWeight()

void ShipMCTrack::SetWeight ( Double_t  w )

inline

Definition at line 76 of file ShipMCTrack.h.

{fW = w;}

Member Data Documentation

fM

Double32_t ShipMCTrack::fM

private

Definition at line 102 of file ShipMCTrack.h.

fMotherId

Int_t ShipMCTrack::fMotherId

private

Index of mother track. -1 for primary particles.

Definition at line 99 of file ShipMCTrack.h.

fNPoints

Int_t ShipMCTrack::fNPoints

private

Bitvector representing the number of MCPoints for this track in each subdetector. The detectors are represented by REF: Bit 0 (1 bit, max. value 1) MVD: Bit 1 - 3 (3 bits, max. value 7) STS: Bit 4 - 8 (5 bits, max. value 31) RICH: Bit 9 (1 bit, max. value 1) MUCH: Bit 10 - 14 (5 bits, max. value 31) TRD: Bit 15 - 19 (5 bits, max. value 31) TOF: Bit 20 - 23 (4 bits, max. value 15) ECAL: Bit 24 (1 bit, max. value 1) ZDC: Bit 25 (1 bit, max. value 1) The respective point numbers can be accessed and modified with the inline functions. Bits 26-31 are spare for potential additional detectors.

Definition at line 128 of file ShipMCTrack.h.

fPdgCode

Int_t ShipMCTrack::fPdgCode

private

PDG particle code

Definition at line 96 of file ShipMCTrack.h.

fProcID

Int_t ShipMCTrack::fProcID

private

Geant4 process ID which created the particle

Definition at line 111 of file ShipMCTrack.h.

fPx

Double32_t ShipMCTrack::fPx

private

Momentum components at start vertex [GeV]

Definition at line 102 of file ShipMCTrack.h.

fPy

Double32_t ShipMCTrack::fPy

private

Definition at line 102 of file ShipMCTrack.h.

fPz

Double32_t ShipMCTrack::fPz

private

Definition at line 102 of file ShipMCTrack.h.

fStartT

Double32_t ShipMCTrack::fStartT

private

Definition at line 105 of file ShipMCTrack.h.

fStartX

Double32_t ShipMCTrack::fStartX

private

Coordinates of start vertex [cm, ns]

Definition at line 105 of file ShipMCTrack.h.

fStartY

Double32_t ShipMCTrack::fStartY

private

Definition at line 105 of file ShipMCTrack.h.

fStartZ

Double32_t ShipMCTrack::fStartZ

private

Definition at line 105 of file ShipMCTrack.h.

fW

Double32_t ShipMCTrack::fW

private

weight

Definition at line 108 of file ShipMCTrack.h.

---

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

• shipdata/ShipMCTrack.h
• shipdata/ShipMCTrack.cxx