CachedShowerRegeneratorOG::LogGaussSmearing Class Reference

#include <LogGaussSmearing.h>

Public Member Functions
	LogGaussSmearing (const double width, utl::RandomEngine::RandomEngineType *const engine)

Public Attributes
double	const

Private Attributes
utl::RandomEngine::RandomEngineType *const	fRandomEngine
const double	fWidth

Detailed Description

Implementation of log-normal time smearing for shower resampling

Author

Darko Veberic

Date

11 Sep 2008

Definition at line 25 of file CachedShowerRegeneratorOG/LogGaussSmearing.h.

Constructor & Destructor Documentation

CachedShowerRegeneratorOG::LogGaussSmearing::LogGaussSmearing ( const double  width, utl::RandomEngine::RandomEngineType *const  engine  )

inline

Definition at line 27 of file CachedShowerRegeneratorOG/LogGaussSmearing.h.

Member Data Documentation

double CachedShowerRegeneratorOG::LogGaussSmearing::const

Initial value:

{
      if (particleTime > planeFrontTime) {
        
        const double fact = exp(fWidth * CLHEP::RandGauss::shoot(fRandomEngine));
        return planeFrontTime * (1 - fact) + particleTime * fact;
      }
      return particleTime

The new difference between the particle time and the plane-front time gets multiplied by a factor lying between 0 and infinity but mostly around 1 (with certain width). The new particle thus never overtakes the plane front but gets smeared around its original time with the plane-front time as a hard limit and log-normal tail towards later times.

Definition at line 40 of file CachedShowerRegeneratorOG/LogGaussSmearing.h.

utl::RandomEngine::RandomEngineType* const CachedShowerRegeneratorOG::LogGaussSmearing::fRandomEngine

private

Definition at line 51 of file CachedShowerRegeneratorOG/LogGaussSmearing.h.

const double CachedShowerRegeneratorOG::LogGaussSmearing::fWidth

private

Definition at line 50 of file CachedShowerRegeneratorOG/LogGaussSmearing.h.

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

• CachedShowerRegeneratorOG/LogGaussSmearing.h