ParticleIdentifier Class Reference

#include <ParticleIdentifier.h>

Public Member Functions
	ParticleIdentifier (const int leptonPdg=~unsigned(0)/2)
virtual bool	isBeamLepton (const erhic::VirtualParticle &) const
virtual bool	isBeamNucleon (const erhic::VirtualParticle &) const
virtual bool	isScatteredLepton (const erhic::VirtualParticle &) const
virtual bool	IsVirtualPhoton (const erhic::VirtualParticle &) const
virtual bool	SkipParticle (const erhic::VirtualParticle &) const
virtual void	SetLeptonBeamPdgCode (int pdg)
virtual int	GetLeptonBeamPdgCode () const
virtual bool	SetChargedCurrent (bool isChargedCurrent)

Static Public Member Functions
static bool	IdentifyBeams (const erhic::VirtualEvent &, BeamParticles &)
static bool	IdentifyBeams (const erhic::VirtualEvent &, std::vector< const erhic::VirtualParticle * > &)

Protected Member Functions
Int_t	DetermineScatteredType (Int_t)

Protected Attributes
Bool_t	mChargedCurrent
Int_t	mLeptonBeamPdgCode
Int_t	mScatteredPdgCode

Detailed Description

Implements methods to identify particles based on their species and status codes.

Definition at line 25 of file ParticleIdentifier.h.

Constructor & Destructor Documentation

ParticleIdentifier::ParticleIdentifier

(

const int

leptonPdg = ~unsigned(0)/2

)

Default constructor. Initialise with the PDG code of the lepton beam. The default is an invalid value.

Definition at line 21 of file ParticleIdentifier.cxx.

Member Function Documentation

Int_t ParticleIdentifier::DetermineScatteredType ( Int_t  beamType )

protected

Determine the scattered lepton type from an incident lepton type.

For neutral current events these are equal. For charged current events the scattered lepton will be a neutrino, the type of which depends on the incident lepton type e.g. beam electron (11) –> scattered nu_e (12) beam positron (-11) –> scattered nu_e_bar (-12) Even though we would not envisage mu or tau beams (!) the algorithm is still robust for these inputs.

Definition at line 102 of file ParticleIdentifier.cxx.

int ParticleIdentifier::GetLeptonBeamPdgCode ( ) const

inlinevirtual

Returns the PDG code to use when identifying the lepton beam.

Definition at line 121 of file ParticleIdentifier.h.

bool ParticleIdentifier::IdentifyBeams ( const erhic::VirtualEvent &  event, BeamParticles &  beams  )

static

Identify the beams from an event and store their properties in a BeamParticles object. See BeamParticles.h for the quantities stored. Returns true if all beams are found, false if not. Important: finding the scattered hadron beam is not implemented.

Definition at line 139 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::IdentifyBeams ( const erhic::VirtualEvent &  event, std::vector< const erhic::VirtualParticle * > &  beams  )

static

Identify the beams from an event and store their properties in a vector of pointers to the particle objects in the event. Do not delete the pointers, as they belong to the event. The returned vector has four entries, in this order: incident lepton, incident hadron, exchanged boson, scattered lepton. Any particle not found yields a NULL pointer in the vector. Returns true if all beams are found (i.e. no NULL pointers), false if not. Important: finding the scattered hadron beam is not implemented.

Definition at line 161 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::isBeamLepton ( const erhic::VirtualParticle &  particle ) const

virtual

Returns whether the particle is the beam lepton.

Definition at line 30 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::isBeamNucleon ( const erhic::VirtualParticle &  particle ) const

virtual

Returns whether the particle is the beam hadron.

Definition at line 90 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::isScatteredLepton ( const erhic::VirtualParticle &  particle ) const

virtual

Returns whether the particle is the scattered lepton beam particle.

Definition at line 41 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::IsVirtualPhoton ( const erhic::VirtualParticle &  particle ) const

virtual

Returns whether the particle is a virtual photon.

Definition at line 81 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::SetChargedCurrent ( bool  isChargedCurrent )

virtual

Look for charged current events.

In this case, the scattered lepton searched for will be the neutrino corresponding to the incident lepton beam type (e.g. W- for electron, W+ for proton).

Definition at line 121 of file ParticleIdentifier.cxx.

void ParticleIdentifier::SetLeptonBeamPdgCode ( int  pdg )

virtual

Sets the PDG code to use when identifying the lepton beam.

Definition at line 112 of file ParticleIdentifier.cxx.

bool ParticleIdentifier::SkipParticle ( const erhic::VirtualParticle &  particle ) const

virtual

Returns whether the particles should be skipped by the tree building code.

Definition at line 54 of file ParticleIdentifier.cxx.

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

• /Users/thomasburton/Documents/projects/eic-smear/include/eicsmear/erhic/ParticleIdentifier.h
• /Users/thomasburton/Documents/projects/eic-smear/src/erhic/ParticleIdentifier.cxx