73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
#ifndef DESCSS_Particle_h
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#define DESCSS_Particle_h
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#include "G4IonTable.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4ParticleTable.hh"
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#include "globals.hh"
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class Particle {
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public:
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Particle(){};
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Particle(G4int Z, G4int A) {
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if (Z == 1)
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ion = G4ParticleTable::GetParticleTable()->FindParticle("proton");
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else if (Z == 2)
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ion = G4ParticleTable::GetParticleTable()->FindParticle("alpha");
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else
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ion = G4IonTable::GetIonTable()->GetIon(Z, A, 0);
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this->Z = Z, this->A = A;
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};
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virtual ~Particle(){};
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public:
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void setC1(G4double v) { C1 = v; };
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void setC2(G4double v) { C2 = v; };
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void setC3(G4double v) { C3 = v; };
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void setC4(G4double v) { C4 = v; };
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void setSum(G4double v) { sum = v; };
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virtual G4double pdf(G4double E) { return 0; };
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public:
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G4ParticleDefinition* ion;
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protected:
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G4int Z, A;
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G4double sum;
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G4double C1, C2, C3, C4;
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};
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class TProton : public Particle {
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public:
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using Particle::Particle;
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G4double pdf(G4double y) {
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G4double C = C1 * pow(50 - C2, 1 - C3) / sum / (1 - C3);
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return pow(sum * (C + y) * (1 - C3) / C1, 1 / (1 - C3)) + C2;
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}
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};
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class GCRProton : public Particle {
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public:
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using Particle::Particle;
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G4double pdf(G4double E) {
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G4double pc = getPc(E);
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G4double beta = getBeta(E);
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return C1 * pow(beta, C2 - 1) * pow(pc / (pc + C3), C4) / pc / sum;
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}
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private:
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G4double M = 931.5;
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G4double getPc(G4double E) { return sqrt(2 * M * E + E * E); }
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G4double getBeta(G4double E) {
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G4double pc = getPc(E);
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return pc / sqrt(M * M + pc * pc);
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}
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};
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class GCRIon : public Particle {
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public:
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using Particle::Particle;
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G4double pdf(G4double E) { return C1 * exp(-C2 * E) * (1 - exp(-C3 * E + C4)) / sum; }
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};
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#endif |