LArHit Class Reference

Class to store hit energy and time in LAr cell from G4 simulation. More...

#include <LArHit.h>

Collaboration diagram for LArHit:

Public Member Functions
	LArHit (Identifier l_cell, double l_energy, double l_time)
	LArHit Constructor.
	LArHit ()
	Default constructor for persistency.
	~LArHit ()
	Destructor.
Identifier	cellID () const
double	energy () const
double	time () const
bool	Less (LArHit *const &h) const
	Operator Less than this for hit ordering.
bool	Equals (LArHit *const &h) const
	Operator Equals this.
void	Add (LArHit *const &h)
	Add another hit ot this hit.
void	finalize ()
	The method to be called at the end of event by SD.

Private Attributes
Identifier	m_ID
	identifier of the cell in which this hit occured.
double	m_energy
	energy (in MeV) deposited in this hit
double	m_time
	time (in ns)

Detailed Description

Class to store hit energy and time in LAr cell from G4 simulation.

Definition at line 21 of file LArHit.h.

Constructor & Destructor Documentation

LArHit() [1/2]

LArHit::LArHit ( Identifier l_cell, double l_energy, double l_time )

inline

LArHit Constructor.

inlines

Parameters

[in]	l_cell	Identifier of the cell in which the hit occured.
[in]	l_energy	Energy (in MeV) deposited in the cell.
[in]	l_time	Time (in ns) of the hit. energy and time should be double in transient memory to have proper rounding accuracy in accumulating sum(E) and sum(E.t) from G4 steps

Definition at line 86 of file LArHit.h.

    :
    m_ID(l_cell), 
    m_energy(l_energy),
        m_time( (l_time*l_energy) )
{}

LArHit() [2/2]

LArHit::LArHit ( )

inline

Default constructor for persistency.

Should never be used

Definition at line 95 of file LArHit.h.

    :
    m_ID(Identifier()),
    m_energy(0.),
        m_time(0.)
{}

~LArHit()

LArHit::~LArHit ( )

inline

Destructor.

Definition at line 103 of file LArHit.h.

{ }

Member Function Documentation

Add()

void LArHit::Add ( LArHit *const & h )

inline

Add another hit ot this hit.

Parameters

[in]

h

hit to add

Definition at line 133 of file LArHit.h.

{
    m_energy += h->m_energy;
    m_time   += h->m_time;
}

cellID()

Identifier LArHit::cellID ( ) const

inline

Returns

cell identifier of this hit

Definition at line 108 of file LArHit.h.

{ return m_ID; }

energy()

double LArHit::energy ( ) const

inline

Returns

energy in MeV of this hit

Definition at line 113 of file LArHit.h.

{ return (double) m_energy; }

Equals()

bool LArHit::Equals ( LArHit *const & h ) const

inline

Operator Equals this.

Definition at line 128 of file LArHit.h.

{ return m_ID == h->m_ID; }

finalize()

void LArHit::finalize ( )

inline

The method to be called at the end of event by SD.

Finalize time computation time = Sum(E.t)/Sum(E)

Definition at line 143 of file LArHit.h.

{
  m_time = m_energy==0 ? 0. : (double)(m_time/m_energy)/Athena::Units::ns;
  m_energy = m_energy/Athena::Units::MeV;
}

Less()

bool LArHit::Less ( LArHit *const & h ) const

inline

Operator Less than this for hit ordering.

Definition at line 123 of file LArHit.h.

{ return m_ID < h->m_ID; } 

time()

double LArHit::time ( ) const

inline

Returns

time in ns of this hit
Time is defined as the g4 time minus the time of flight at speed of light from the center of Atlas

Definition at line 118 of file LArHit.h.

{ return m_time; }

Member Data Documentation

m_energy

double LArHit::m_energy

private

energy (in MeV) deposited in this hit

Definition at line 76 of file LArHit.h.

m_ID

Identifier LArHit::m_ID

private

identifier of the cell in which this hit occured.

Definition at line 73 of file LArHit.h.

m_time

double LArHit::m_time

private

time (in ns)

Definition at line 79 of file LArHit.h.

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

• LArHit.h