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This commit is contained in:
Gabriele Cosmo
2026-03-19 16:51:22 +01:00
parent b4a16de652
commit 41f2dd7996
352 changed files with 26342 additions and 24532 deletions
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source/processes/hadronic/cross_sections/History
+10
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@@ -6,6 +6,16 @@ It must **not** be used as a substitute for writing good git commit messages!
-------------------------------------------------------------------------------
## 2026-01-21 Vladimir Ivanchenko (hadr-cross-V11-03-10)
- G4ChargeExchangeXS - added two different biasing factors for pions and
kaons (urgent request NA64).
## 2026-01-11 Vladimir Ivanchenko
- G4ChargeExchangeXS - removed debug printout
## 2025-12-30 Vladimir Ivanchenko
- G4ChargeExchangeXS - fixed trivial Coverity warning
## 2025-11-24 Vladimir Ivanchenko (hadr-cross-V11-03-09)
- G4EMDissociationCrossSection - fixed compilation warning
source/processes/hadronic/cross_sections/include/G4ChargeExchangeXS.hh
+8 -4
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@@ -48,8 +48,8 @@
// where Y = KS, KL
//
#ifndef G4ChargeExchangeXS_h
#define G4ChargeExchangeXS_h
#ifndef G4CHARGEEXCHANGEXS_HH
#define G4CHARGEEXCHANGEXS_HH
#include "G4VCrossSectionDataSet.hh"
#include "globals.hh"
@@ -86,10 +86,12 @@ public:
void SetEnergyLimit(G4double val) { fEnergyLimit = val; };
void SetCrossSectionFactor(G4double val) { fFactor = val; };
void SetPionCrossSectionFactor(G4double val) { fFactorPi = val; };
void SetKaonCrossSectionFactor(G4double val) { fFactorK = val; };
G4double GetCrossSectionFactor() const { return fFactor; };
G4bool isPion() const { return findex >= 0; };
G4double SampleTforPion(const G4double etot,
@@ -110,6 +112,8 @@ private:
const G4ParticleDefinition* fPionSecPD[5];
G4double fXSecPion[5] = {0.0, 0.0, 0.0, 0.0, 0.0};
G4double fEnergyLimit{0.0};
G4double fFactorPi{1.0};
G4double fFactorK{1.0};
G4double fFactor{1.0};
G4double fMassPi;
};
source/processes/hadronic/cross_sections/src/G4ChargeExchangeXS.cc
+5 -3
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@@ -121,6 +121,7 @@ G4double G4ChargeExchangeXS::GetCrossSection(const G4ParticleDefinition* part,
G4int ZZ, G4double pEtot)
{
G4double result = 0.0;
fFactor = fFactorK;
G4int pdg = part->GetPDGEncoding();
// Get or calculate the proton mass, particle mass, and s(Lorentz invariant)
@@ -145,6 +146,7 @@ G4double G4ChargeExchangeXS::GetCrossSection(const G4ParticleDefinition* part,
// pi- + p -> n + meson (0- pi0, 1- eta, 2- eta', 3- omega, 4- f2(1270))
if (pdg == -211) {
fFactor = fFactorPi;
G4double z23 = g4calc->Z23(Z);
G4double x = lorentz_s*inv1e7;
G4double logX = G4Log(x);
@@ -163,6 +165,7 @@ G4double G4ChargeExchangeXS::GetCrossSection(const G4ParticleDefinition* part,
// pi+ + n -> p + meson (0- pi0, 1- eta, 2- eta', 3- omega, 4- f2(1270))
else if (pdg == 211) {
fFactor = fFactorPi;
G4double n23 = g4calc->Z23(A - Z);
G4double x = lorentz_s*inv1e7;
G4double logX = G4Log(x);
@@ -227,8 +230,7 @@ G4ChargeExchangeXS::SampleSecondaryType(const G4ParticleDefinition* part,
GetCrossSection(part, mat, Z, etot);
const G4ParticleDefinition* pd = nullptr;
G4int pdg = std::abs(part->GetPDGEncoding());
G4cout << pdg << G4endl;
G4int pdg = std::abs(part->GetPDGEncoding());
// pi- + p / pi+ + n
if (pdg == 211) {
pd = fPionSecPD[0];
@@ -262,7 +264,7 @@ G4ChargeExchangeXS::SampleSecondaryType(const G4ParticleDefinition* part,
pd = G4KaonPlus::KaonPlus();
}
}
if (verboseLevel > 1) {
if (verboseLevel > 1 && nullptr != pd) {
G4cout << "G4ChargeExchangeXS::SampleSecondaryType for "
<< pd->GetParticleName() << " findex=" << findex
<< G4endl;