LowEnergyFastSimParam Class Reference

#include <LowEnergyFastSimParam.h>

Public Member Functions
G4double	GetInPointEnergyFraction (G4double energy) const
G4double	GetRadius (G4double energy) const
G4double	GetZ () const

Detailed Description

Definition at line 7 of file LowEnergyFastSimParam.h.

Member Function Documentation

GetInPointEnergyFraction()

G4double LowEnergyFastSimParam::GetInPointEnergyFraction ( G4double  energy ) const

inline

Definition at line 9 of file LowEnergyFastSimParam.h.

                                                           {
    const G4double e2 = energy * energy;
    const G4double e3 = e2 * energy;
    return -6.42310317e-07 * e3 + 1.96988997e-04 * e2 - 2.14064635e-02 * energy + 1.02186764e+00;
  }

References SiPixelPhase1Clusters_cfi::e3, and HCALHighEnergyHPDFilter_cfi::energy.

Referenced by LowEnergyFastSimModel::DoIt().

GetRadius()

G4double LowEnergyFastSimParam::GetRadius ( G4double  energy ) const

inline

Definition at line 15 of file LowEnergyFastSimParam.h.

                                            {
    constexpr const G4double r1 = 156.52094133;
    constexpr const G4double r2 = -1.02220543;
    const G4double r0 = r1 + r2 * energy;
    const G4double erand = G4UniformRand();
 
    return sqrt(r0 / erand - r0);
  }

References HCALHighEnergyHPDFilter_cfi::energy, diffTwoXMLs::r1, diffTwoXMLs::r2, and mathSSE::sqrt().

Referenced by LowEnergyFastSimModel::DoIt().

GetZ()

G4double LowEnergyFastSimParam::GetZ ( void  ) const

inline

Definition at line 24 of file LowEnergyFastSimParam.h.

                        {
    constexpr const G4double alpha = 0.02211515;
    constexpr const G4double t = 0.66968625;
    const G4double erand = G4UniformRand();
 
    return -log(erand) / alpha + t;
  }

References zMuMuMuonUserData::alpha, dqm-mbProfile::log, and OrderedSet::t.

Referenced by LowEnergyFastSimModel::DoIt().