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This commit is contained in:
Gabriele Cosmo
2016-06-09 11:11:55 +02:00
parent e083ffb441
commit 516dbf1a58
5914 changed files with 202605 additions and 71141 deletions
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source/processes/hadronic/util/src/G4Nucleus.cc
+24 -24
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@@ -28,7 +28,7 @@
// J.P.Wellisch: 23-Apr-97: minor simplifications
// modified by J.L.Chuma 24-Jul-97 to set the total momentum in Cinema and
// EvaporationEffects
// modified by J.L.Chuma 21-Oct-97 put abs() around the totalE^2-mass^2
// modified by J.L.Chuma 21-Oct-97 put std::abs() around the totalE^2-mass^2
// in calculation of total momentum in
// Cinema and EvaporationEffects
// Chr. Volcker, 10-Nov-1997: new methods and class variables.
@@ -77,7 +77,7 @@ GetBiasedThermalNucleus(G4double aMass, G4ThreeVector aVelocity, G4double temp)
G4ReactionProduct result;
G4double value = 0;
G4double random = 1;
G4double norm = 3.*sqrt(k_Boltzmann*temp*aMass*G4Neutron::Neutron()->GetPDGMass());
G4double norm = 3.*std::sqrt(k_Boltzmann*temp*aMass*G4Neutron::Neutron()->GetPDGMass());
norm /= G4Neutron::Neutron()->GetPDGMass();
norm *= 5.;
norm += velMag;
@@ -103,8 +103,8 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
py = GetThermalPz(theTarget.GetMass(), currentTemp);
pz = GetThermalPz(theTarget.GetMass(), currentTemp);
theTarget.SetMomentum(px, py, pz);
G4double tMom = sqrt(px*px+py*py+pz*pz);
G4double tEtot = sqrt((tMom+theTarget.GetMass())*
G4double tMom = std::sqrt(px*px+py*py+pz*pz);
G4double tEtot = std::sqrt((tMom+theTarget.GetMass())*
(tMom+theTarget.GetMass())-
2.*tMom*theTarget.GetMass());
if(1-tEtot/theTarget.GetMass()>0.001)
@@ -208,12 +208,12 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
G4double mass =
(A-Z)*neutron_mass + Z*proton_mass + Z*electron_mass
- 15.67*A // nuclear volume
+ 17.23*pow(A,2./3.) // surface energy
+ 93.15*pow(A/2.-Z,2.)/A // asymmetry
+ 0.6984523*pow(Z,2.)*pow(A,-1./3.); // coulomb
+ 17.23*std::pow(A,2./3.) // surface energy
+ 93.15*std::pow(A/2.-Z,2.)/A // asymmetry
+ 0.6984523*std::pow(Z,2.)*std::pow(A,-1./3.); // coulomb
G4int ipp = (myA - myZ)%2; // pairing
G4int izz = myZ%2;
if( ipp == izz )mass += (ipp+izz-1) * 12.0 * pow(A,-0.5);
if( ipp == izz )mass += (ipp+izz-1) * 12.0 * std::pow(A,-0.5);
return mass*MeV;
}
@@ -221,7 +221,7 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
G4Nucleus::GetThermalPz( const G4double mass, const G4double temp ) const
{
G4double result = G4RandGauss::shoot();
result *= sqrt(k_Boltzmann*temp*mass); // Das ist impuls (Pz),
result *= std::sqrt(k_Boltzmann*temp*mass); // Das ist impuls (Pz),
// nichtrelativistische rechnung
// Maxwell verteilung angenommen
return result;
@@ -245,14 +245,14 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
G4double ek = kineticEnergy/GeV;
G4float ekin = std::min( 4.0, std::max( 0.1, ek ) );
const G4float atno = std::min( 120., aEff );
const G4float gfa = 2.0*((aEff-1.0)/70.)*exp(-(aEff-1.0)/70.);
const G4float gfa = 2.0*((aEff-1.0)/70.)*std::exp(-(aEff-1.0)/70.);
//
// 0.35 value at 1 GeV
// 0.05 value at 0.1 GeV
//
G4float cfa = std::max( 0.15, 0.35 + ((0.35-0.05)/2.3)*log(ekin) );
G4float exnu = 7.716 * cfa * exp(-cfa)
* ((atno-1.0)/120.)*exp(-(atno-1.0)/120.);
G4float cfa = std::max( 0.15, 0.35 + ((0.35-0.05)/2.3)*std::log(ekin) );
G4float exnu = 7.716 * cfa * std::exp(-cfa)
* ((atno-1.0)/120.)*std::exp(-(atno-1.0)/120.);
G4float fpdiv = std::max( 0.5, 1.0-0.25*ekin*ekin );
//
// pnBlackTrackEnergy is the kinetic energy (in GeV) available for
@@ -301,13 +301,13 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
static const G4double expxl = -expxu; // lower bound for arg. of exp
G4double ek = kineticEnergy/GeV;
G4double ekLog = log( ek );
G4double aLog = log( aEff );
G4double ekLog = std::log( ek );
G4double aLog = std::log( aEff );
G4double em = std::min( 1.0, 0.2390 + 0.0408*aLog*aLog );
G4double temp1 = -ek * std::min( 0.15, 0.0019*aLog*aLog*aLog );
G4double temp2 = exp( std::max( expxl, std::min( expxu, -(ekLog-em)*(ekLog-em)*2.0 ) ) );
G4double temp2 = std::exp( std::max( expxl, std::min( expxu, -(ekLog-em)*(ekLog-em)*2.0 ) ) );
G4double result = 0.0;
if( abs( temp1 ) < 1.0 )
if( std::abs( temp1 ) < 1.0 )
{
if( temp2 > 1.0e-10 )result = temp1*temp2;
}
@@ -325,20 +325,20 @@ G4ReactionProduct G4Nucleus::GetThermalNucleus(G4double targetMass, G4double tem
// chv: .. we assume zero temperature!
// momentum is equally distributed in each phasespace volume dpx, dpy, dpz.
G4double ranflat1=RandFlat::shoot((HepDouble)0.,(HepDouble)fermiMomentum);
G4double ranflat2=RandFlat::shoot((HepDouble)0.,(HepDouble)fermiMomentum);
G4double ranflat3=RandFlat::shoot((HepDouble)0.,(HepDouble)fermiMomentum);
G4double ranflat1=RandFlat::shoot((G4double)0.,(G4double)fermiMomentum);
G4double ranflat2=RandFlat::shoot((G4double)0.,(G4double)fermiMomentum);
G4double ranflat3=RandFlat::shoot((G4double)0.,(G4double)fermiMomentum);
G4double ranmax = (ranflat1>ranflat2? ranflat1: ranflat2);
ranmax = (ranmax>ranflat3? ranmax : ranflat3);
// - random decay angle
G4double theta=pi*G4UniformRand(); // isotropic decay angle theta
G4double phi =RandFlat::shoot((HepDouble)0.,(HepDouble)2*pi); // isotropic decay angle phi
G4double phi =RandFlat::shoot((G4double)0.,(G4double)2*pi); // isotropic decay angle phi
// - setup ThreeVector
G4double pz=cos(theta)*ranmax;
G4double px=sin(theta)*cos(phi)*ranmax;
G4double py=sin(theta)*sin(phi)*ranmax;
G4double pz=std::cos(theta)*ranmax;
G4double px=std::sin(theta)*std::cos(phi)*ranmax;
G4double py=std::sin(theta)*std::sin(phi)*ranmax;
G4ThreeVector p(px,py,pz);
return p;
}