Gabriele Cosmo
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// -------------------------------------------------------------------
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//
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// GEANT4 Class header file
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//
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//
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// File name: G4Vee2hadrons
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 12.08.2004
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//
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// Modifications: 14 July 2014 N. Chikuma revised interfaces
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//
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//
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// Class Description: base class to compute partial cross sections
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// of e+e- annihilation into hadrons and
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// sample of final state in the centre mass frame
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// -------------------------------------------------------------------
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//
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#ifndef G4Vee2hadrons_h
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#define G4Vee2hadrons_h 1
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#include <vector>
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#include <CLHEP/Units/SystemOfUnits.h>
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#include "globals.hh"
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#include "G4ThreeVector.hh"
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#include "G4eeCrossSections.hh"
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#include "G4PhysicsLinearVector.hh"
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class G4DynamicParticle;
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class G4PhysicsVector;
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class G4Vee2hadrons
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{
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public:
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explicit G4Vee2hadrons(G4eeCrossSections* cr,
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G4double vlowEnergy,
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G4double vhighEnergy,
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G4double vdelta) : cross(cr)
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{
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lowEnergy = vlowEnergy;
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highEnergy = vhighEnergy;
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delta = vdelta;
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};
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virtual ~G4Vee2hadrons() {};
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virtual G4double PeakEnergy() const = 0;
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virtual G4double ComputeCrossSection(G4double) const = 0;
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G4PhysicsVector* PhysicsVector() const
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{
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G4int nbins = std::max(3, G4int((highEnergy - lowEnergy)/delta) );
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G4PhysicsVector* pp = new G4PhysicsLinearVector(lowEnergy,highEnergy,nbins);
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return pp;
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};
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virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
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G4double, const G4ThreeVector&) = 0;
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G4double LowEnergy() const {return lowEnergy;};
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G4double HighEnergy() const {return highEnergy;};
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// hide assignment operator
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G4Vee2hadrons & operator=(const G4Vee2hadrons &right) = delete;
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G4Vee2hadrons(const G4Vee2hadrons&) = delete;
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private:
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// parameters of the table
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G4double lowEnergy;
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G4double highEnergy;
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G4double delta;
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protected:
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G4eeCrossSections* cross; // class to compute cross section
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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#endif
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