Import Geant4 10.3.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -50,6 +50,7 @@ void G4DecayKineticTracks::Decay(G4KineticTrackVector *tracks) const {
|
||||
|
||||
// Select decay of current track, put daughters at end of vector
|
||||
daughters = track->GetDefinition()->IsShortLived() ? track->Decay() : 0;
|
||||
|
||||
if (daughters) {
|
||||
tracks->insert(tracks->end(), daughters->begin(), daughters->end());
|
||||
delete track; // Remove parent track
|
||||
|
||||
@@ -516,131 +516,160 @@ G4KineticTrackVector* G4KineticTrack::Decay()
|
||||
G4double theTotalActualWidth = this->EvaluateTotalActualWidth();
|
||||
if (theTotalActualWidth !=0)
|
||||
{
|
||||
G4int index;
|
||||
G4double theSumActualWidth = 0.0;
|
||||
G4double* theCumActualWidth = new G4double[nChannels];
|
||||
for (index = nChannels - 1; index >= 0; index--)
|
||||
{
|
||||
theSumActualWidth += theActualWidth[index];
|
||||
theCumActualWidth[index] = theSumActualWidth;
|
||||
// cout << "DECAY Cum. Width " << index << " " << theCumActualWidth[index] << G4endl;
|
||||
}
|
||||
// cout << "DECAY Total Width " << theSumActualWidth << G4endl;
|
||||
// cout << "DECAY Total Width " << theTotalActualWidth << G4endl;
|
||||
G4double r = theTotalActualWidth * G4UniformRand();
|
||||
G4VDecayChannel* theDecayChannel(0);
|
||||
G4int chosench=-1;
|
||||
for (index = nChannels - 1; index >= 0; index--)
|
||||
{
|
||||
if (r < theCumActualWidth[index])
|
||||
{
|
||||
theDecayChannel = theDecayTable->GetDecayChannel(index);
|
||||
// cout << "DECAY SELECTED CHANNEL" << index << G4endl;
|
||||
chosench=index;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
delete [] theCumActualWidth;
|
||||
|
||||
if(!theDecayChannel)
|
||||
{
|
||||
G4cerr << "Error condition encountered in G4KineticTrack::Decay()"<<G4endl;
|
||||
G4cerr << " decay channel has 0x0 channel associated."<<G4endl;
|
||||
G4cerr << " particle was "<<thisDefinition->GetParticleName()<<G4endl;
|
||||
G4cerr << " channel index "<< chosench << "of "<<nChannels<<"channels"<<G4endl;
|
||||
return 0;
|
||||
}
|
||||
G4String theParentName = theDecayChannel->GetParentName();
|
||||
G4double theParentMass = this->GetActualMass();
|
||||
G4double theBR = theActualWidth[index];
|
||||
// cout << "**BR*** DECAYNEW " << theBR << G4endl;
|
||||
G4int theNumberOfDaughters = theDecayChannel->GetNumberOfDaughters();
|
||||
G4String theDaughtersName1 = "";
|
||||
G4String theDaughtersName2 = "";
|
||||
G4String theDaughtersName3 = "";
|
||||
G4String theDaughtersName4 = "";
|
||||
|
||||
//AR-16Aug2016 : Repeat the sampling of the decay channel until is
|
||||
// kinematically above threshold or a max number of attempts is reached
|
||||
G4bool isChannelBelowThreshold = true;
|
||||
const G4int maxNumberOfLoops = 10000;
|
||||
G4int loopCounter = 0;
|
||||
|
||||
G4int chosench;
|
||||
G4String theParentName;
|
||||
G4double theParentMass;
|
||||
G4double theBR;
|
||||
G4int theNumberOfDaughters;
|
||||
G4String theDaughtersName1;
|
||||
G4String theDaughtersName2;
|
||||
G4String theDaughtersName3;
|
||||
G4String theDaughtersName4;
|
||||
G4double masses[4]={0.,0.,0.,0.};
|
||||
G4int shortlivedDaughters[4];
|
||||
G4int numberOfShortliveds(0);
|
||||
G4double SumLongLivedMass(0);
|
||||
for (G4int aD=0; aD < theNumberOfDaughters ; aD++)
|
||||
{
|
||||
const G4ParticleDefinition* aDaughter = theDecayChannel->GetDaughter(aD);
|
||||
masses[aD] = aDaughter->GetPDGMass();
|
||||
if ( aDaughter->IsShortLived() )
|
||||
{
|
||||
shortlivedDaughters[numberOfShortliveds]=aD;
|
||||
numberOfShortliveds++;
|
||||
} else {
|
||||
SumLongLivedMass += aDaughter->GetPDGMass();
|
||||
}
|
||||
|
||||
do {
|
||||
|
||||
G4int index;
|
||||
G4double theSumActualWidth = 0.0;
|
||||
G4double* theCumActualWidth = new G4double[nChannels];
|
||||
for (index = nChannels - 1; index >= 0; index--)
|
||||
{
|
||||
theSumActualWidth += theActualWidth[index];
|
||||
theCumActualWidth[index] = theSumActualWidth;
|
||||
// cout << "DECAY Cum. Width " << index << " " << theCumActualWidth[index] << G4endl;
|
||||
}
|
||||
// cout << "DECAY Total Width " << theSumActualWidth << G4endl;
|
||||
// cout << "DECAY Total Width " << theTotalActualWidth << G4endl;
|
||||
G4double r = theTotalActualWidth * G4UniformRand();
|
||||
G4VDecayChannel* theDecayChannel(0);
|
||||
chosench=-1;
|
||||
for (index = nChannels - 1; index >= 0; index--)
|
||||
{
|
||||
if (r < theCumActualWidth[index])
|
||||
{
|
||||
theDecayChannel = theDecayTable->GetDecayChannel(index);
|
||||
// cout << "DECAY SELECTED CHANNEL" << index << G4endl;
|
||||
chosench=index;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
delete [] theCumActualWidth;
|
||||
|
||||
if(!theDecayChannel)
|
||||
{
|
||||
G4cerr << "Error condition encountered in G4KineticTrack::Decay()"<<G4endl;
|
||||
G4cerr << " decay channel has 0x0 channel associated."<<G4endl;
|
||||
G4cerr << " particle was "<<thisDefinition->GetParticleName()<<G4endl;
|
||||
G4cerr << " channel index "<< chosench << "of "<<nChannels<<"channels"<<G4endl;
|
||||
return 0;
|
||||
}
|
||||
theParentName = theDecayChannel->GetParentName();
|
||||
theParentMass = this->GetActualMass();
|
||||
theBR = theActualWidth[index];
|
||||
// cout << "**BR*** DECAYNEW " << theBR << G4endl;
|
||||
theNumberOfDaughters = theDecayChannel->GetNumberOfDaughters();
|
||||
theDaughtersName1 = "";
|
||||
theDaughtersName2 = "";
|
||||
theDaughtersName3 = "";
|
||||
theDaughtersName4 = "";
|
||||
|
||||
for (G4int i=0; i < 4; i++) masses[i]=0.;
|
||||
G4int shortlivedDaughters[4];
|
||||
G4int numberOfShortliveds(0);
|
||||
G4double SumLongLivedMass(0);
|
||||
for (G4int aD=0; aD < theNumberOfDaughters ; aD++)
|
||||
{
|
||||
const G4ParticleDefinition* aDaughter = theDecayChannel->GetDaughter(aD);
|
||||
masses[aD] = aDaughter->GetPDGMass();
|
||||
if ( aDaughter->IsShortLived() )
|
||||
{
|
||||
shortlivedDaughters[numberOfShortliveds]=aD;
|
||||
numberOfShortliveds++;
|
||||
} else {
|
||||
SumLongLivedMass += aDaughter->GetPDGMass();
|
||||
}
|
||||
|
||||
}
|
||||
switch (theNumberOfDaughters)
|
||||
{
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = "";
|
||||
theDaughtersName3 = "";
|
||||
theDaughtersName4 = "";
|
||||
break;
|
||||
case 2:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = "";
|
||||
theDaughtersName4 = "";
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
} else if ( numberOfShortliveds == 2) {
|
||||
// choose masses one after the other, start with randomly choosen
|
||||
G4int zero= (G4UniformRand() > 0.5) ? 0 : 1;
|
||||
G4int one = 1-zero;
|
||||
G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - aSampler.GetMinimumMass(theDecayChannel->GetDaughter(shortlivedDaughters[one]));
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[zero]);
|
||||
masses[shortlivedDaughters[zero]]=aSampler.SampleMass(aDaughter,massmax);
|
||||
massmax=theParentMass - masses[shortlivedDaughters[zero]];
|
||||
aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[one]);
|
||||
masses[shortlivedDaughters[one]]=aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
break;
|
||||
case 3:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = theDecayChannel->GetDaughterName(2);
|
||||
theDaughtersName4 = "";
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = theDecayChannel->GetDaughterName(2);
|
||||
theDaughtersName4 = theDecayChannel->GetDaughterName(3);
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
if ( theNumberOfDaughters > 4 ) {
|
||||
G4ExceptionDescription ed;
|
||||
ed << "More than 4 decay daughters: kept only the first 4" << G4endl;
|
||||
G4Exception( "G4KineticTrack::Decay()", "KINTRK5", JustWarning, ed );
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
switch (theNumberOfDaughters)
|
||||
{
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = "";
|
||||
theDaughtersName3 = "";
|
||||
theDaughtersName4 = "";
|
||||
break;
|
||||
case 2:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = "";
|
||||
theDaughtersName4 = "";
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
} else if ( numberOfShortliveds == 2) {
|
||||
// choose masses one after the other, start with randomly choosen
|
||||
G4int zero= (G4UniformRand() > 0.5) ? 0 : 1;
|
||||
G4int one = 1-zero;
|
||||
G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - aSampler.GetMinimumMass(theDecayChannel->GetDaughter(shortlivedDaughters[one]));
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[zero]);
|
||||
masses[shortlivedDaughters[zero]]=aSampler.SampleMass(aDaughter,massmax);
|
||||
massmax=theParentMass - masses[shortlivedDaughters[zero]];
|
||||
aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[one]);
|
||||
masses[shortlivedDaughters[one]]=aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
break;
|
||||
case 3:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = theDecayChannel->GetDaughterName(2);
|
||||
theDaughtersName4 = "";
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
theDaughtersName1 = theDecayChannel->GetDaughterName(0);
|
||||
theDaughtersName2 = theDecayChannel->GetDaughterName(1);
|
||||
theDaughtersName3 = theDecayChannel->GetDaughterName(2);
|
||||
theDaughtersName4 = theDecayChannel->GetDaughterName(3);
|
||||
if ( numberOfShortliveds == 1)
|
||||
{ G4SampleResonance aSampler;
|
||||
G4double massmax=theParentMass - SumLongLivedMass;
|
||||
const G4ParticleDefinition * aDaughter=theDecayChannel->GetDaughter(shortlivedDaughters[0]);
|
||||
masses[shortlivedDaughters[0]]= aSampler.SampleMass(aDaughter,massmax);
|
||||
}
|
||||
if ( theNumberOfDaughters > 4 ) {
|
||||
G4ExceptionDescription ed;
|
||||
ed << "More than 4 decay daughters: kept only the first 4" << G4endl;
|
||||
G4Exception( "G4KineticTrack::Decay()", "KINTRK5", JustWarning, ed );
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
//AR-16Aug2016 : Check whether the sum of the masses of the daughters is smaller than the parent mass.
|
||||
// If this is still not the case, but the max number of attempts has been reached,
|
||||
// then the subsequent call thePhaseSpaceDecayChannel.DecayIt() will throw an exception.
|
||||
G4double sumDaughterMasses = 0.0;
|
||||
for (G4int i=0; i < 4; i++) sumDaughterMasses += masses[i];
|
||||
if ( theParentMass - sumDaughterMasses > 0.0 ) isChannelBelowThreshold = false;
|
||||
|
||||
} while ( isChannelBelowThreshold && ++loopCounter < maxNumberOfLoops ); /* Loop checking, 16.08.2016, A.Ribon */
|
||||
|
||||
//
|
||||
// Get the decay products List
|
||||
|
||||
Reference in New Issue
Block a user