JPHYSICS::JDeltaRays::FIT Struct Reference

Auxiliary data structure to encapsulate energy loss methods based on fit. More...

#include <JDeltaRays.hh>

Static Public Member Functions
static double	getEnergyLossFromMuon (const double E)
	Equivalent EM-shower energy loss due to delta-rays per unit muon track length.
static double	getEnergyLossFromTau (const double E)
	Equivalent EM-shower energy loss due to delta-rays per unit tau track length.

Detailed Description

Auxiliary data structure to encapsulate energy loss methods based on fit.

Definition at line 433 of file JDeltaRays.hh.

Member Function Documentation

getEnergyLossFromMuon()

static double JPHYSICS::JDeltaRays::FIT::getEnergyLossFromMuon ( const double E )

inlinestatic

Equivalent EM-shower energy loss due to delta-rays per unit muon track length.

Parameters

E	muon energy [GeV]

Returns

equivalent energy loss [GeV/m]

Definition at line 441 of file JDeltaRays.hh.

      {
        static const double a =  3.195e-01;
        static const double b =  3.373e-01;
        static const double c = -2.731e-02;
        static const double d =  1.610e-03;
        static const double Emin = 0.13078; // [GeV]
     
        if (E > Emin) {
      
          const double x = log10(E);
          const double y = a + x*(b + x*(c + x*(d)));                           // [MeV g^-1 cm^2]
      
          if (y > 0.0) {
            return y * DENSITY_SEA_WATER * 1.0e-1;                              // [GeV/m]
          }
        }
    
        return 0.0;
      }

getEnergyLossFromTau()

static double JPHYSICS::JDeltaRays::FIT::getEnergyLossFromTau ( const double E )

inlinestatic

Equivalent EM-shower energy loss due to delta-rays per unit tau track length.

Parameters

E	tau energy [GeV]

Returns

equivalent energy loss [GeV/m]

Definition at line 469 of file JDeltaRays.hh.

      {
        static const double a = -2.178e-01;
        static const double b =  4.995e-01;
        static const double c = -3.906e-02;
        static const double d =  1.615e-03;
        static const double Emin = 2.19500; // [GeV]
       
        if (E > Emin) {
   
          const double x = log10(E);
          const double y = a + x*(b + x*(c + x*(d)));                           // [MeV g^-1 cm^2]
   
          if (y > 0) {
            return y * DENSITY_SEA_WATER * 1.0e-1;                              // [GeV/m]
          }
        }
   
        return 0.0;
      }

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

• JDeltaRays.hh