G4BetaPlusDecay.hh

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////////////////////////////////////////////////////////////////////////////////
//                                                                            //
//  File:   G4BetaPlusDecay.hh                                                //
//  Author: D.H. Wright (SLAC)                                                //
//  Date:   14 November 2014                                                  //
//  Description: performs beta+ decay of radioactive nuclei, and returns      //
//               daughter particles in rest frame of parent nucleus           // 
//  Modifications:                                                            //
//    23.08.2023 V.Ivanchenko make it thread safe using static utility        //
//               G4BetaSpectrumSampler                                        //
//                                                                            //
////////////////////////////////////////////////////////////////////////////////
 
#ifndef G4BetaPlusDecay_h
#define G4BetaPlusDecay_h 1
 
#include "G4NuclearDecay.hh"
#include "G4BetaDecayType.hh"
 
class G4BetaPlusDecay : public G4NuclearDecay
{
  public:
    G4BetaPlusDecay(const G4ParticleDefinition* theParentNucleus,
                    const G4double& theBR, const G4double& endpointE,
                    const G4double& ex, const G4Ions::G4FloatLevelBase& flb,
                    const G4BetaDecayType& type);
 
    ~G4BetaPlusDecay() override = default;
 
    G4DecayProducts* DecayIt(G4double) override;
 
    void DumpNuclearInfo() override;
 
  private:
 
    void SetUpBetaSpectrumSampler(const G4int& parentZ, const G4int& parentA,
                                  const G4BetaDecayType& type);
 
    const G4double maxEnergy; // in eMass units
    const G4double estep;     // in eMass units
    G4double parentMass;
    G4double resMass;
 
    const G4ParticleDefinition* fPrimaryIon;
    const G4ParticleDefinition* fResIon;
    const G4ParticleDefinition* fLepton;
    const G4ParticleDefinition* fNeutrino;
 
    static const G4int npti{101};
    G4double cdf[npti];
};
 
#endif