Gabriele Cosmo
177 lines
6.1 KiB
C++
177 lines
6.1 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// $Id: G4eeToHadronsMultiModel.hh 109567 2018-05-02 07:04:10Z gcosmo $
|
|
//
|
|
// -------------------------------------------------------------------
|
|
//
|
|
// GEANT4 Class header file
|
|
//
|
|
//
|
|
// File name: G4eeToHadronsMultiModel
|
|
//
|
|
// Author: Vladimir Ivanchenko
|
|
//
|
|
// Creation date: 18.05.2005
|
|
//
|
|
// Modifications:
|
|
//
|
|
|
|
//
|
|
// Class Description: vector of e+e- -> hadrons models
|
|
//
|
|
|
|
// -------------------------------------------------------------------
|
|
//
|
|
|
|
#ifndef G4eeToHadronsMultiModel_h
|
|
#define G4eeToHadronsMultiModel_h 1
|
|
|
|
#include "G4VEmModel.hh"
|
|
#include "G4eeToHadronsModel.hh"
|
|
#include "G4ParticleChangeForGamma.hh"
|
|
#include "G4TrackStatus.hh"
|
|
#include "Randomize.hh"
|
|
#include <CLHEP/Units/SystemOfUnits.h>
|
|
#include <CLHEP/Units/PhysicalConstants.h>
|
|
#include <vector>
|
|
|
|
class G4eeCrossSections;
|
|
class G4Vee2hadrons;
|
|
|
|
class G4eeToHadronsMultiModel : public G4VEmModel
|
|
{
|
|
|
|
public:
|
|
|
|
explicit G4eeToHadronsMultiModel(G4int ver=0,
|
|
const G4String& nam = "eeToHadrons");
|
|
|
|
virtual ~G4eeToHadronsMultiModel();
|
|
|
|
virtual void Initialise(const G4ParticleDefinition*,
|
|
const G4DataVector&) override;
|
|
|
|
virtual G4double CrossSectionPerVolume(const G4Material*,
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double cutEnergy,
|
|
G4double maxEnergy) override;
|
|
|
|
virtual G4double ComputeCrossSectionPerAtom(
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double Z, G4double A,
|
|
G4double cutEnergy = 0.0,
|
|
G4double maxEnergy = DBL_MAX) override;
|
|
|
|
virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
|
|
const G4MaterialCutsCouple*,
|
|
const G4DynamicParticle*,
|
|
G4double tmin = 0.0,
|
|
G4double maxEnergy = DBL_MAX) override;
|
|
|
|
virtual void ModelDescription(std::ostream& outFile) const override;
|
|
|
|
virtual void ModelDescription(std::ostream& outFile,
|
|
G4String endOfLine) const override;
|
|
|
|
// Set the factor to artificially increase the crossSection (default 1)
|
|
void SetCrossSecFactor(G4double fac);
|
|
|
|
inline G4double ComputeCrossSectionPerElectron(
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double cutEnergy = 0.0,
|
|
G4double maxEnergy = DBL_MAX);
|
|
|
|
private:
|
|
|
|
void AddEEModel(G4Vee2hadrons*, const G4DataVector&);
|
|
|
|
//change incident e+ kinetic energy into CM total energy(sum of e+ and e-)
|
|
inline G4double LabToCM(G4double);
|
|
|
|
// hide assignment operator
|
|
G4eeToHadronsMultiModel & operator=(const G4eeToHadronsMultiModel &right);
|
|
G4eeToHadronsMultiModel(const G4eeToHadronsMultiModel&);
|
|
|
|
G4eeCrossSections* cross;
|
|
G4ParticleChangeForGamma* fParticleChange;
|
|
G4double delta;
|
|
|
|
std::vector<G4eeToHadronsModel*> models;
|
|
|
|
std::vector<G4double> ekinMin;
|
|
std::vector<G4double> ekinPeak;
|
|
std::vector<G4double> ekinMax;
|
|
std::vector<G4double> cumSum;
|
|
|
|
G4double thKineticEnergy;
|
|
G4double maxKineticEnergy;
|
|
G4double csFactor;
|
|
|
|
G4int nModels;
|
|
G4int verbose;
|
|
G4bool isInitialised;
|
|
};
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
//change incident e+ kinetic energy into CM total energy(sum of e+ and e-)
|
|
inline G4double G4eeToHadronsMultiModel::LabToCM(G4double kinE_lab)
|
|
{
|
|
G4double totE_CM = 0.0;
|
|
G4double mass = CLHEP::electron_mass_c2;
|
|
G4double totE_lab = kinE_lab + mass;
|
|
totE_CM = std::sqrt(2*mass*(mass+totE_lab));
|
|
|
|
return totE_CM;
|
|
}
|
|
|
|
inline G4double G4eeToHadronsMultiModel::ComputeCrossSectionPerElectron(
|
|
const G4ParticleDefinition*,
|
|
G4double kineticEnergy,
|
|
G4double, G4double)
|
|
{
|
|
G4double res = 0.0;
|
|
|
|
G4double energy = LabToCM(kineticEnergy);
|
|
|
|
if (energy > thKineticEnergy) {
|
|
for(G4int i=0; i<nModels; i++) {
|
|
if(energy >= ekinMin[i] && energy <= ekinMax[i]){
|
|
res += (models[i])->ComputeCrossSectionPerElectron(0,energy);
|
|
}
|
|
cumSum[i] = res;
|
|
}
|
|
}
|
|
return res*csFactor;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
#endif
|