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This commit is contained in:
Gabriele Cosmo
2024-06-21 15:46:33 +02:00
parent dda54bbdcf
commit f7b23877ed
411 changed files with 22817 additions and 21317 deletions
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source/processes/electromagnetic/standard/src/G4BetheHeitler5DModel.cc
+25 -14
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@@ -388,7 +388,12 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
G4LorentzVector LeptonMinus;
G4double pdf = 0.;
G4double rndmv6[6];
G4double rndmv6[6] = {0.0};
const G4double corrFac = 1.0/(correctionIndex + 1.0);
const G4double expLowLim = -20.;
const G4double logLowLim = G4Exp(expLowLim/corrFac);
G4double z0, z1, z2, x0, x1;
G4double betheheitler, sinTheta, cosTheta, dum0;
// START Sampling
do {
@@ -399,18 +404,25 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
// integral y = pow(x,(c+1))/(c+1) @ x = 1 => y = 1 /(1+c)
// invCdf exp( log(y /* *( c + 1.0 )/ (c + 1.0 ) */ ) /( c + 1.0) )
//////////////////////////////////////////////////
const G4double X1 =
G4Exp(G4Log(rndmv6[0])/(correctionIndex + 1.0));
const G4double x0 = G4Exp(xl1 + (xu1 - xl1)*rndmv6[1]);
const G4double dum0 = 1./(1.+x0);
const G4double cosTheta = (x0-1.)*dum0;
const G4double sinTheta = std::sqrt(4.*x0)*dum0;
z0 = (rndmv6[0] > logLowLim) ? G4Log(rndmv6[0])*corrFac : expLowLim;
G4double X1 = (z0 > expLowLim) ? G4Exp(z0) : 0.0;
z1 = xl1 + (xu1 - xl1)*rndmv6[1];
if (z1 > expLowLim) {
x0 = G4Exp(z1);
dum0 = 1.0/(1.0 + x0);
x1 = dum0*x0;
cosTheta = -1.0 + 2.0*x1;
sinTheta = 2*std::sqrt(x1*(1.0 - x1));
} else {
x0 = 0.0;
dum0 = 1.0;
cosTheta = -1.0;
sinTheta = 0.0;
}
const G4double PairInvMass = PairInvMassMin*G4Exp(X1*X1*lnPairInvMassRange);
// G4double rndmv3[3];
// rndmEngine->flatArray(3, rndmv3);
z2 = X1*X1*lnPairInvMassRange;
const G4double PairInvMass = PairInvMassMin*((z2 > 1.e-3) ? G4Exp(z2) : 1 + z2 + 0.5*z2*z2);
// cos and sin theta-lepton
const G4double cosThetaLept = std::cos(pi*rndmv6[2]);
@@ -423,7 +435,7 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
const G4double sinPhiLept = std::copysign(std::sqrt((1.-cosPhiLept)*(1.+cosPhiLept)),rndmv6[3]-0.5);
// cos and sin phi
const G4double cosPhi = std::cos(twoPi*rndmv6[4]-pi);
const G4double sinPhi = std::copysign(std::sqrt((1.-cosPhi)*(1.+cosPhi)),rndmv6[4]-0.5);
const G4double sinPhi = std::copysign(std::sqrt((1.-cosPhi)*(1.+cosPhi)),rndmv6[4]-0.5);
//////////////////////////////////////////////////
// frames:
@@ -550,7 +562,6 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
}
} // else FormFactor = 1 by default
G4double betheheitler;
if (GammaPolarizationMag==0.) {
const G4double pPlusSTP = PPlus*sinThetaPlus;
const G4double pMinusSTM = PMinus*sinThetaMinus;
@@ -581,7 +592,7 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
pdf = cross * (xu1 - xl1) / G4Exp(correctionIndex*G4Log(X1)); // cond1;
} while ( pdf < ymax * rndmv6[5] );
// END of Sampling
if ( fVerbose > 2 ) {
G4double recul = std::sqrt(Recoil.x()*Recoil.x()+Recoil.y()*Recoil.y()
+Recoil.z()*Recoil.z());