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This commit is contained in:
Gabriele Cosmo
2016-06-09 15:37:50 +02:00
parent a8e9364cea
commit 96c8bcd0af
6923 changed files with 198390 additions and 41849 deletions
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source/processes/hadronic/cross_sections/src/G4ProtonInelasticCrossSection.cc
+8 -3
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@@ -89,15 +89,20 @@ GetCrossSection(G4double kineticEnergy, G4double atomicNumber, G4double nOfProto
G4double ff1= 0.70-0.002*a; // slope of the drop at medium energies.
G4double ff2= 1.00+1/a; // start of the slope.
G4double ff3= 0.8+18/a-0.002*a; // stephight
fac=1-(1/(1+std::exp(-8*ff1*(std::log10(kineticEnergy)+1.37*ff2))));
fac = 1.0;
if (kineticEnergy > DBL_MIN)
fac= 1.0 - (1.0/(1+std::exp(-8*ff1*(std::log10(kineticEnergy)+1.37*ff2))));
crossSection = crossSection*(1+ff3*fac);
// low energy return to zero
ff1=1.-1/a-0.001*a; // slope of the rise
ff2=1.17-2.7/a-0.0014*a; // start of the rise
fac=-8.*ff1*(std::log10(kineticEnergy)+2.0*ff2);
fac=1/(1+std::exp(fac));
fac = 0.0;
if (kineticEnergy > DBL_MIN) {
fac=-8.*ff1*(std::log10(kineticEnergy)+2.0*ff2);
fac=1/(1+std::exp(fac));
}
crossSection = crossSection*fac;
return crossSection*millibarn;
}