genfit::MaterialEffects Class Reference

Stepper and energy loss/noise matrix calculation. More...

#include <MaterialEffects.h>

Inheritance diagram for genfit::MaterialEffects:

Public Member Functions
void	init (AbsMaterialInterface *matIfc)
	set the material interface here. Material interface classes must be derived from AbsMaterialInterface. More...
bool	isInitialized ()
void	setNoEffects (bool opt=true)
void	setEnergyLossBetheBloch (bool opt=true)
void	setNoiseBetheBloch (bool opt=true)
void	setNoiseCoulomb (bool opt=true)
void	setEnergyLossBrems (bool opt=true)
void	setNoiseBrems (bool opt=true)
void	ignoreBoundariesBetweenEqualMaterials (bool opt=true)
void	setMscModel (const std::string &modelName)
	Select the multiple scattering model that will be used during track fit. More...
double	effects (const std::vector< RKStep > &steps, int materialsFXStart, int materialsFXStop, const double &mom, const int &pdg, M7x7 *noise=nullptr)
	Calculates energy loss in the traveled path, optional calculation of noise matrix. More...
void	stepper (const RKTrackRep *rep, M1x7 &state7, const double &mom, double &relMomLoss, const int &pdg, MaterialProperties &currentMaterial, StepLimits &limits, bool varField=true)
	Returns maximum length so that a specified momentum loss will not be exceeded. More...
void	setDebugLvl (unsigned int lvl=1)
void	drawdEdx (int pdg=11)

Static Public Member Functions
static MaterialEffects *	getInstance ()
static void	destruct ()

Detailed Description

Stepper and energy loss/noise matrix calculation.

Author

Christian Höppner (Technische Universität München, original author)

Sebastian Neubert (Technische Universität München, original author)

Johannes Rauch (Technische Universität München, author)

It provides functionality to limit the stepsize of an extrapolation in order not to exceed a specified maximum momentum loss. After propagation, the energy loss for the given length and (optionally) the noise matrix can be calculated. You have to set which energy-loss and noise mechanisms you want to use. At the moment, per default all energy loss and noise options are ON.

Definition at line 50 of file MaterialEffects.h.

Member Function Documentation

destruct()

static void genfit::MaterialEffects::destruct ( )

static

drawdEdx()

void genfit::MaterialEffects::drawdEdx

(

int

pdg = 11

)

Referenced by ignoreBoundariesBetweenEqualMaterials().

effects()

double genfit::MaterialEffects::effects	(	const std::vector< RKStep > &	steps,
		int	materialsFXStart,
		int	materialsFXStop,
		const double &	mom,
		const int &	pdg,
		M7x7 *	noise = nullptr
	)

Calculates energy loss in the traveled path, optional calculation of noise matrix.

Referenced by ignoreBoundariesBetweenEqualMaterials().

getInstance()

static MaterialEffects* genfit::MaterialEffects::getInstance ( )

static

ignoreBoundariesBetweenEqualMaterials()

void genfit::MaterialEffects::ignoreBoundariesBetweenEqualMaterials ( bool  opt = true )

inline

Definition at line 93 of file MaterialEffects.h.

References drawdEdx(), effects(), setDebugLvl(), setMscModel(), and stepper().

{ ignoreBoundariesBetweenEqualMaterials_ = opt; }

init()

void genfit::MaterialEffects::init

(

AbsMaterialInterface *

matIfc

)

set the material interface here. Material interface classes must be derived from AbsMaterialInterface.

isInitialized()

bool genfit::MaterialEffects::isInitialized ( )

inline

Definition at line 64 of file MaterialEffects.h.

{ return materialInterface_ != nullptr; }

setDebugLvl()

void genfit::MaterialEffects::setDebugLvl

(

unsigned int

lvl = 1

)

Referenced by ignoreBoundariesBetweenEqualMaterials().

setEnergyLossBetheBloch()

void genfit::MaterialEffects::setEnergyLossBetheBloch ( bool  opt = true )

inline

Definition at line 68 of file MaterialEffects.h.

  {
    energyLossBetheBloch_ = opt;
    noEffects_ = false;
  }

setEnergyLossBrems()

void genfit::MaterialEffects::setEnergyLossBrems ( bool  opt = true )

inline

Definition at line 83 of file MaterialEffects.h.

  {
    energyLossBrems_ = opt;
    noEffects_ = false;
  }

setMscModel()

void genfit::MaterialEffects::setMscModel

(

const std::string &

modelName

)

Select the multiple scattering model that will be used during track fit.

At the moment two model are available GEANE and Highland. GEANE is the model was was present in Genfit first. Note that using this function has no effect if setNoiseCoulomb(false) is set.

Referenced by ignoreBoundariesBetweenEqualMaterials().

setNoEffects()

void genfit::MaterialEffects::setNoEffects ( bool  opt = true )

inline

Definition at line 66 of file MaterialEffects.h.

{ noEffects_ = opt; }

setNoiseBetheBloch()

void genfit::MaterialEffects::setNoiseBetheBloch ( bool  opt = true )

inline

Definition at line 73 of file MaterialEffects.h.

  {
    noiseBetheBloch_ = opt;
    noEffects_ = false;
  }

setNoiseBrems()

void genfit::MaterialEffects::setNoiseBrems ( bool  opt = true )

inline

Definition at line 88 of file MaterialEffects.h.

  {
    noiseBrems_ = opt;
    noEffects_ = false;
  }

setNoiseCoulomb()

void genfit::MaterialEffects::setNoiseCoulomb ( bool  opt = true )

inline

Definition at line 78 of file MaterialEffects.h.

  {
    noiseCoulomb_ = opt;
    noEffects_ = false;
  }

stepper()

void genfit::MaterialEffects::stepper	(	const RKTrackRep *	rep,
		M1x7 &	state7,
		const double &	mom,
		double &	relMomLoss,
		const int &	pdg,
		MaterialProperties &	currentMaterial,
		StepLimits &	limits,
		bool	varField = true
	)

Returns maximum length so that a specified momentum loss will not be exceeded.

The stepper returns the maximum length that the particle may travel, so that a specified relative momentum loss will not be exceeded, or the next material boundary is reached. The material crossed are stored together with their stepsizes.

Referenced by ignoreBoundariesBetweenEqualMaterials().

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

• MaterialEffects.h