include/Geant4/G4BetaPlusDecay.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 ////////////////////////////////////////////////////////////////////////////////
0027 //                                                                            //
0028 //  File:   G4BetaPlusDecay.hh                                                //
0029 //  Author: D.H. Wright (SLAC)                                                //
0030 //  Date:   14 November 2014                                                  //
0031 //  Description: performs beta+ decay of radioactive nuclei, and returns      //
0032 //               daughter particles in rest frame of parent nucleus           //
0033 //  Modifications:                                                            //
0034 //    23.08.2023 V.Ivanchenko make it thread safe using static utility        //
0035 //               G4BetaSpectrumSampler                                        //
0036 //                                                                            //
0037 ////////////////////////////////////////////////////////////////////////////////
0038
0039 #ifndef G4BetaPlusDecay_h
0040 #define G4BetaPlusDecay_h 1
0041
0042 #include "G4NuclearDecay.hh"
0043 #include "G4BetaDecayType.hh"
0044
0045 class G4BetaPlusDecay : public G4NuclearDecay
0046 {
0047   public:
0048     G4BetaPlusDecay(const G4ParticleDefinition* theParentNucleus,
0049                     const G4double& theBR, const G4double& endpointE,
0050                     const G4double& ex, const G4Ions::G4FloatLevelBase& flb,
0051                     const G4BetaDecayType& type);
0052
0053     ~G4BetaPlusDecay() override = default;
0054
0055     G4DecayProducts* DecayIt(G4double) override;
0056
0057     void DumpNuclearInfo() override;
0058
0059   private:
0060
0061     void SetUpBetaSpectrumSampler(const G4int& parentZ, const G4int& parentA,
0062                                   const G4BetaDecayType& type);
0063
0064     const G4double maxEnergy; // in eMass units
0065     const G4double estep;     // in eMass units
0066     G4double parentMass;
0067     G4double resMass;
0068
0069     const G4ParticleDefinition* fPrimaryIon;
0070     const G4ParticleDefinition* fResIon;
0071     const G4ParticleDefinition* fLepton;
0072     const G4ParticleDefinition* fNeutrino;
0073
0074     static const G4int npti{101};
0075     G4double cdf[npti];
0076 };
0077
0078 #endif
0079