StiElossCalculator Class Reference

Public Member Functions
	StiElossCalculator (double zOverA, double ionization, double A, double Z, double Dens)
void	set (double zOverA, double ionization, double A, double Z, double Dens)
virtual	~StiElossCalculator ()
double	calculate (double charge2, double m, double beta2) const
double	calcError (double charge2, double m, double beta2) const
double	getzOverA () const
double	getionization2 () const
double	getA () const
double	getZ () const
double	getDens () const

Protected Attributes
double	_zOverA
	Ratio of Z to A of the scattering material.
double	_ionization2
	square of the ionization potential.
double	_A
double	_Z
double	_Dens
int	mId

Static Protected Attributes
static const double	_k

Detailed Description

Definition at line 28 of file StiElossCalculator.h.

Constructor & Destructor Documentation

StiElossCalculator::~StiElossCalculator ( )

virtual

Energy Loss Calculator Constructor

Parameters

zOverA	Ratio of Z to A of the scattering material,
ionization2	square of the ionization potential.

Definition at line 39 of file StiElossCalculator.cxx.

Member Function Documentation

double StiElossCalculator::calculate	(	double	z2,
		double	m,
		double	beta2
	)		const

Calculate and return the average energy loss for an incoming particle of atomic number "z", mass "m", and velocity "beta" according to the Bethe-Bloch specific energy loss equation. This function uses the material parameters stored within this object. p> The calculation of the maximum kinetic energy done here is exact. The density effects are neglected.

Parameters

z2	square of atomic number "z" of incoming particle,
_zOverA	Ratio of Z to A of the scattering material,
m	mass (in GeV/c2) of the incoming particle,
beta2	square of the relative velocity (beta=v/c) of the incoming particle.
_ionization2	square of the ionization potential.

Exceptions

runtime_error

whenever beta2==1

Returns

energy loss in GeV*cm^2/g.

Definition at line 56 of file StiElossCalculator.cxx.

Referenced by StiKalmanTrackNode::propagateMCS().

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

• Sti/StiElossCalculator.h
• Sti/StiElossCalculator.cxx