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This commit is contained in:
Gabriele Cosmo
2016-06-09 16:15:05 +02:00
parent b79225fb37
commit 74cad5e589
3877 changed files with 234205 additions and 167127 deletions
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source/processes/hadronic/models/parton_string/hadronization/src/G4VLongitudinalStringDecay.cc
+32 -8
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@@ -24,8 +24,8 @@
// ********************************************************************
//
//
// $Id: G4VLongitudinalStringDecay.cc,v 1.13 2008/06/23 08:35:55 vuzhinsk Exp $
// GEANT4 tag $Name: geant4-09-02 $
// $Id: G4VLongitudinalStringDecay.cc,v 1.18 2009/08/03 13:21:25 vuzhinsk Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// -----------------------------------------------------------------------------
// GEANT 4 class implementation file
@@ -70,7 +70,6 @@ G4VLongitudinalStringDecay::G4VLongitudinalStringDecay()
ClusterLoopInterrupt = 500;
// Changable Parameters below.
SigmaQT = 0.5 * GeV;
StrangeSuppress = 0.44; // 27 % strange quarks produced, ie. u:d:s=1:1:0.27
@@ -484,9 +483,16 @@ G4VLongitudinalStringDecay::pDefPair G4VLongitudinalStringDecay::CreatePartonPai
// return G4ThreeVector(Pt * std::cos(phi),Pt * std::sin(phi),0);
// }
G4ThreeVector G4VLongitudinalStringDecay::SampleQuarkPt()
G4ThreeVector G4VLongitudinalStringDecay::SampleQuarkPt(G4double ptMax)
{
G4double Pt = -std::log(G4UniformRand());
G4double Pt;
if ( ptMax < 0 ) {
// sample full gaussian
Pt = -std::log(G4UniformRand());
} else {
// sample in limited range
Pt = -std::log(CLHEP::RandFlat::shoot(std::exp(-sqr(ptMax)/sqr(SigmaQT)), 1.));
}
Pt = SigmaQT * std::sqrt(Pt);
G4double phi = 2.*pi*G4UniformRand();
return G4ThreeVector(Pt * std::cos(phi),Pt * std::sin(phi),0);
@@ -497,11 +503,12 @@ G4ThreeVector G4VLongitudinalStringDecay::SampleQuarkPt()
void G4VLongitudinalStringDecay::CalculateHadronTimePosition(G4double theInitialStringMass, G4KineticTrackVector* Hadrons)
{
// `yo-yo` formation time
// `yo-yo` formation time
// const G4double kappa = 1.0 * GeV/fermi/4.; // Uzhi String tension 1.06.08
G4double kappa = GetStringTensionParameter();
//G4cout<<"Kappa "<<kappa<<G4endl; // Uzhi 20.06.08
//G4int Uzhi; G4cin>>Uzhi; // Uzhi 20.06.08
//G4cout<<"Number of hadrons "<<Hadrons->size()<<G4endl; // Vova
for(size_t c1 = 0; c1 < Hadrons->size(); c1++)
{
G4double SumPz = 0;
@@ -513,9 +520,26 @@ void G4VLongitudinalStringDecay::CalculateHadronTimePosition(G4double theInitial
}
G4double HadronE = Hadrons->operator[](c1)->Get4Momentum().e();
G4double HadronPz = Hadrons->operator[](c1)->Get4Momentum().pz();
Hadrons->operator[](c1)->SetFormationTime((theInitialStringMass - 2.*SumPz + HadronE - HadronPz)/(2.*kappa));
G4ThreeVector aPosition(0, 0, (theInitialStringMass - 2.*SumE - HadronE + HadronPz)/(2.*kappa));
Hadrons->operator[](c1)->SetFormationTime(
(theInitialStringMass - 2.*SumPz + HadronE - HadronPz)/(2.*kappa)/c_light); //Uzhi1.07.09c_light
G4ThreeVector aPosition(0, 0,
(theInitialStringMass - 2.*SumE - HadronE + HadronPz)/(2.*kappa));
Hadrons->operator[](c1)->SetPosition(aPosition);
/*
G4cout<<"kappa "<<kappa<<G4endl;
G4cout<<c1<<" Partic time, position Old "<<
(theInitialStringMass - 2.*SumPz + HadronE - HadronPz)/(2.*kappa)<<' '<<
(theInitialStringMass - 2.*SumE - HadronE + HadronPz)/(2.*kappa)<<G4endl;
G4cout<<c1<<" Partic time, position New "<<
(theInitialStringMass - 2.*SumPz + HadronE - HadronPz)/(2.*kappa)/c_light<<' '<<
(theInitialStringMass - 2.*SumE - HadronE + HadronPz)/(2.*kappa)<<G4endl;
G4cout<<"fermi "<<fermi<<" 1/fermi "<<1./fermi<<' '<<"1*fermi/c "<<1.*fermi/c_light<<G4endl;
G4int Uzhi; G4cin>>Uzhi; // Uzhi 20.06.08
*/
}
}