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This commit is contained in:
Gabriele Cosmo
2016-06-30 14:12:05 +02:00
parent a654a7ab1f
commit 4ec577e5c4
2021 changed files with 100995 additions and 78277 deletions
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source/processes/electromagnetic/muons/src/G4MuPairProductionModel.cc
+25 -26
View File
@@ -23,7 +23,7 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4MuPairProductionModel.cc 91743 2015-08-04 11:49:58Z gcosmo $
// $Id: G4MuPairProductionModel.cc 97392 2016-06-02 10:10:32Z gcosmo $
//
// -------------------------------------------------------------------
//
@@ -90,12 +90,14 @@
// static members
//
const G4int G4MuPairProductionModel::zdat[]={1, 4, 13, 29, 92};
const G4double G4MuPairProductionModel::adat[]={1.01, 9.01,26.98, 63.55, 238.03};
const G4double G4MuPairProductionModel::xgi[]={ 0.0199, 0.1017, 0.2372, 0.4083,
0.5917, 0.7628, 0.8983, 0.9801 };
const G4double G4MuPairProductionModel::wgi[]={ 0.0506, 0.1112, 0.1569, 0.1813,
0.1813, 0.1569, 0.1112, 0.0506 };
static const G4double ak1 = 6.9;
static const G4double ak2 = 1.0;
static const G4int zdat[5] = {1, 4, 13, 29, 92};
const G4double G4MuPairProductionModel::xgi[] =
{ 0.0199, 0.1017, 0.2372, 0.4083, 0.5917, 0.7628, 0.8983, 0.9801 };
const G4double G4MuPairProductionModel::wgi[8] =
{ 0.0506, 0.1112, 0.1569, 0.1813, 0.1813, 0.1569, 0.1112, 0.0506 };
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -104,12 +106,12 @@ using namespace std;
G4MuPairProductionModel::G4MuPairProductionModel(const G4ParticleDefinition* p,
const G4String& nam)
: G4VEmModel(nam),
particle(0),
particle(nullptr),
factorForCross(4.*fine_structure_const*fine_structure_const
*classic_electr_radius*classic_electr_radius/(3.*pi)),
sqrte(sqrt(G4Exp(1.))),
currentZ(0),
fParticleChange(0),
fParticleChange(nullptr),
minPairEnergy(4.*electron_mass_c2),
lowestKinEnergy(1.0*GeV),
nzdat(5),
@@ -124,16 +126,15 @@ G4MuPairProductionModel::G4MuPairProductionModel(const G4ParticleDefinition* p,
theElectron = G4Electron::Electron();
thePositron = G4Positron::Positron();
particleMass = lnZ = z13 = z23 = 0;
particleMass = lnZ = z13 = z23 = 0.;
// setup lowest limit dependent on particle mass
if(p) {
SetParticle(p);
G4double limit = p->GetPDGMass()*8;
if(limit > lowestKinEnergy) { lowestKinEnergy = limit; }
lowestKinEnergy = std::max(lowestKinEnergy,p->GetPDGMass()*8.0);
}
emin = lowestKinEnergy;
emax = 10*TeV;
emax = 10.*TeV;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
@@ -216,7 +217,7 @@ G4double G4MuPairProductionModel::ComputeDEDXPerVolume(
G4double loss = ComputMuPairLoss(Z, kineticEnergy, cutEnergy, tmax);
dedx += loss*theAtomicNumDensityVector[i];
}
if (dedx < 0.) { dedx = 0.; }
dedx = std::max(dedx, 0.0);
return dedx;
}
@@ -234,8 +235,6 @@ G4double G4MuPairProductionModel::ComputMuPairLoss(G4double Z,
// calculate the rectricted loss
// numerical integration in log(PairEnergy)
G4double ak1=6.9;
G4double ak2=1.0;
G4double aaa = G4Log(minPairEnergy);
G4double bbb = G4Log(cut);
@@ -257,7 +256,7 @@ G4double G4MuPairProductionModel::ComputMuPairLoss(G4double Z,
x += hhh;
}
loss *= hhh;
if (loss < 0.) loss = 0.;
loss = std::max(loss, 0.0);
return loss;
}
@@ -273,8 +272,8 @@ G4double G4MuPairProductionModel::ComputeMicroscopicCrossSection(
G4double cut = std::max(cutEnergy, minPairEnergy);
if (tmax <= cut) { return cross; }
G4double ak1=6.9 ;
G4double ak2=1.0 ;
// G4double ak1=6.9 ;
// G4double ak2=1.0 ;
G4double aaa = G4Log(cut);
G4double bbb = G4Log(tmax);
G4int kkk = (G4int)((bbb-aaa)/ak1 + ak2);
@@ -295,7 +294,7 @@ G4double G4MuPairProductionModel::ComputeMicroscopicCrossSection(
}
cross *= hhh;
if(cross < 0.0) { cross = 0.0; }
cross = std::max(cross, 0.0);
return cross;
}
@@ -305,9 +304,9 @@ G4double G4MuPairProductionModel::ComputeDMicroscopicCrossSection(
G4double tkin,
G4double Z,
G4double pairEnergy)
// Calculates the differential (D) microscopic cross section
// using the cross section formula of R.P. Kokoulin (18/01/98)
// Code modified by R.P. Kokoulin, V.N. Ivanchenko (27/01/04)
// Calculates the differential (D) microscopic cross section
// using the cross section formula of R.P. Kokoulin (18/01/98)
// Code modified by R.P. Kokoulin, V.N. Ivanchenko (27/01/04)
{
static const G4double bbbtf= 183. ;
static const G4double bbbh = 202.4 ;
@@ -318,8 +317,8 @@ G4double G4MuPairProductionModel::ComputeDMicroscopicCrossSection(
G4double totalEnergy = tkin + particleMass;
G4double residEnergy = totalEnergy - pairEnergy;
G4double massratio = particleMass/electron_mass_c2 ;
G4double massratio2 = massratio*massratio ;
G4double massratio = particleMass/electron_mass_c2;
G4double massratio2 = massratio*massratio;
G4double cross = 0.;
G4double c3 = 0.75*sqrte*particleMass;
@@ -408,7 +407,7 @@ G4double G4MuPairProductionModel::ComputeDMicroscopicCrossSection(
}
cross = -tmn*sum*factorForCross*z2*residEnergy/(totalEnergy*pairEnergy);
if(cross < 0.0) { cross = 0.0; }
cross = std::max(cross, 0.0);
return cross;
}