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This commit is contained in:
Gabriele Cosmo
2020-02-14 15:32:52 +01:00
parent 5baee230e9
commit 8c87fe78c4
278 changed files with 24232 additions and 22963 deletions
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source/processes/electromagnetic/standard/src/G4BetheHeitler5DModel.cc
+5 -5
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@@ -481,12 +481,12 @@ G4BetheHeitler5DModel::SampleSecondaries(std::vector<G4DynamicParticle*>* fvect,
const G4double LeptonEnergy2 = PairInvMass*0.5;
// New way of calucaltion thePRecoil to avoid underflow
const G4double ap1 = 2.0*GammaEnergy*RecoilMass -
PairInvMass*PairInvMass + 2.0*PairInvMass*RecoilMass;
const G4double bp1 = 2.0*GammaEnergy*RecoilMass -
PairInvMass*PairInvMass - 2.0*PairInvMass*RecoilMass;
G4double abp = std::max((2.0*GammaEnergy*RecoilMass -
PairInvMass*PairInvMass + 2.0*PairInvMass*RecoilMass)*
(2.0*GammaEnergy*RecoilMass -
PairInvMass*PairInvMass - 2.0*PairInvMass*RecoilMass),0.0);
const G4double thePRecoil = std::sqrt(ap1 * bp1) * isqrts2;
G4double thePRecoil = std::sqrt(abp) * isqrts2;
// back to the center-of-mass frame
Recoil.set( thePRecoil*sinTheta*cosPhi,