InDet::SiNoise_bt Class Reference

#include <SiNoise_bt.h>

Collaboration diagram for InDet::SiNoise_bt:

Public Member Functions
const int &	model () const
const double &	covarianceAzim () const
const double &	covariancePola () const
const double &	covarianceIMom () const
const double &	correctionIMom () const
void	reset ()
void	production (int direction, int model, const Trk::TrackParameters &tp)

Private Attributes
int	m_model {}
double	m_covarianceAzim {}
double	m_covariancePola {}
double	m_covarianceIMom {}
double	m_correctionIMom {1.0}

Detailed Description

Definition at line 23 of file SiNoise_bt.h.

Member Function Documentation

correctionIMom()

const double& InDet::SiNoise_bt::correctionIMom ( ) const

inline

Definition at line 30 of file SiNoise_bt.h.

{return m_correctionIMom;}

covarianceAzim()

const double& InDet::SiNoise_bt::covarianceAzim ( ) const

inline

Definition at line 27 of file SiNoise_bt.h.

{return m_covarianceAzim;}

covarianceIMom()

const double& InDet::SiNoise_bt::covarianceIMom ( ) const

inline

Definition at line 29 of file SiNoise_bt.h.

{return m_covarianceIMom;}

covariancePola()

const double& InDet::SiNoise_bt::covariancePola ( ) const

inline

Definition at line 28 of file SiNoise_bt.h.

{return m_covariancePola;}

model()

const int& InDet::SiNoise_bt::model ( ) const

inline

Definition at line 26 of file SiNoise_bt.h.

{return m_model         ;}

production()

void InDet::SiNoise_bt::production	(	int	direction,
		int	model,
		const Trk::TrackParameters &	tp
	)

Definition at line 24 of file SiNoise_bt.cxx.

{
  reset(); 
  if(Model < 1 || Model > 2) return; 
  m_model = Model;
  double radlength = 0.03;
  double energylose = 0.4;
 
  const Amg::Transform3D& T  = Tp.associatedSurface().transform();
  const AmgVector(5)&     Vp = Tp.parameters(); 
 
  double q     = std::abs(Vp[4]);
  double cosp  = std::cos(Vp[3]) ;
  double sinp2 = (1.-cosp)*(1.+cosp)   ;
  if(sinp2==0) sinp2 = 0.000001;
  double s     = 
    std::abs(std::sqrt(sinp2)*(std::cos(Vp[2])*T(0,2)+std::sin(Vp[2]*T(1,2)))+cosp*T(2,2));
  s  < .05 ? s = 20. : s = 1./s; 
  
  m_covariancePola = 134.*s*radlength*q*q;
  m_covarianceAzim = m_covariancePola/sinp2;
 
  if(m_model==1) {
    double        dp = energylose*q*s;
    m_covarianceIMom = .2*dp*dp*q*q;
    m_correctionIMom = 1.-dp;
  }
  else {
    m_correctionIMom = .5;
    m_covarianceIMom = (m_correctionIMom-1.)*(m_correctionIMom-1.)*q*q;
  }
  if(Dir>0) m_correctionIMom = 1./m_correctionIMom;
}

reset()

void InDet::SiNoise_bt::reset

(

)

Definition at line 15 of file SiNoise_bt.cxx.

                      {
      m_model          = 0 ;
      m_covarianceAzim = 0.;
      m_covariancePola = 0.;
      m_covarianceIMom = 0.;
      m_correctionIMom = 1.;
    }

Member Data Documentation

m_correctionIMom

double InDet::SiNoise_bt::m_correctionIMom {1.0}

private

Definition at line 39 of file SiNoise_bt.h.

m_covarianceAzim

double InDet::SiNoise_bt::m_covarianceAzim {}

private

Definition at line 36 of file SiNoise_bt.h.

m_covarianceIMom

double InDet::SiNoise_bt::m_covarianceIMom {}

private

Definition at line 38 of file SiNoise_bt.h.

m_covariancePola

double InDet::SiNoise_bt::m_covariancePola {}

private

Definition at line 37 of file SiNoise_bt.h.

m_model

int InDet::SiNoise_bt::m_model {}

private

Definition at line 35 of file SiNoise_bt.h.

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

• SiNoise_bt.h
• SiNoise_bt.cxx