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Commit 3c9b9106 authored by Felix Riehn's avatar Felix Riehn
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added decay configuration routines, turned on decay for sibyll interaction

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Documentation/Examples/cascade_example.cc
+ 36
− 22
View file @ 3c9b9106
......@@ -43,6 +43,35 @@ class ProcessSplit : public corsika::process::BaseProcess<ProcessSplit> {
public:
ProcessSplit() {}
void setTrackedParticlesStable() const {
/*
Sibyll is hadronic generator
only hadrons decay
*/
// set particles unstable
corsika::process::sibyll::setHadronsUnstable();
// make tracked particles stable
std::cout << "ProcessSplit: setting tracked hadrons stable.." << std::endl;
setup::Stack ds;
ds.NewParticle().SetPID(Code::PiPlus);
ds.NewParticle().SetPID(Code::PiMinus);
ds.NewParticle().SetPID(Code::KPlus);
ds.NewParticle().SetPID(Code::KMinus);
ds.NewParticle().SetPID(Code::K0Long);
ds.NewParticle().SetPID(Code::K0Short);
for (auto& p : ds) {
int s_id = process::sibyll::ConvertToSibyllRaw(p.GetPID());
// set particle stable by setting table value negative
// cout << "ProcessSplit: doDiscrete: setting " << p.GetPID() << "(" << s_id << ")"
// << " stable in Sibyll .." << endl;
s_csydec_.idb[s_id - 1] = (-1) * abs( s_csydec_.idb[s_id - 1] );
p.Delete();
}
}
template <typename Particle>
double MinStepLength(Particle& p, setup::Trajectory&) const {
......@@ -211,7 +240,8 @@ public:
// running sibyll, filling stack
sibyll_( kBeam, kTarget, sqs);
// running decays
//decsib_();
setTrackedParticlesStable();
decsib_();
// print final state
int print_unit = 6;
sib_list_( print_unit );
......@@ -228,6 +258,9 @@ public:
super_stupid::MomentumVector Ptot_final(rootCS, {0.0_newton_second, 0.0_newton_second, 0.0_newton_second});
for (auto &psib: ss){
++i;
// skip particles that have decayed in Sibyll
if( abs(s_plist_.llist[ i ]) > 100 ) continue;
//transform energy to lab. frame, primitve
// compute beta_vec * p_vec
// arbitrary Lorentz transformation based on sibyll routines
......@@ -300,29 +333,10 @@ public:
// initialize Sibyll
sibyll_ini_();
// set particles stable / unstable
// use stack to loop over particles
setup::Stack ds;
ds.NewParticle().SetPID(Code::Proton);
ds.NewParticle().SetPID(Code::Neutron);
ds.NewParticle().SetPID(Code::PiPlus);
ds.NewParticle().SetPID(Code::PiMinus);
ds.NewParticle().SetPID(Code::Pi0);
ds.NewParticle().SetPID(Code::KPlus);
ds.NewParticle().SetPID(Code::KMinus);
ds.NewParticle().SetPID(Code::K0Long);
ds.NewParticle().SetPID(Code::K0Short);
for (auto& p : ds) {
int s_id = process::sibyll::ConvertToSibyllRaw(p.GetPID());
// set particle stable by setting table value negative
cout << "ProcessSplit: Init: setting " << p.GetPID() << "(" << s_id << ")"
<< " stable in Sibyll .." << endl;
s_csydec_.idb[s_id] = -s_csydec_.idb[s_id - 1];
p.Delete();
}
setTrackedParticlesStable();
}
int GetCount() { return fCount; }
private:
......
Processes/Sibyll/ProcessDecay.h
+ 95
− 50
View file @ 3c9b9106
......@@ -12,62 +12,107 @@ namespace corsika::process {
namespace sibyll {
class ProcessDecay : public corsika::process::BaseProcess<ProcessDecay> {
public:
ProcessDecay() {}
void Init() {}
template <typename Particle>
double MinStepLength(Particle& p, setup::Trajectory&) const {
EnergyType E = p.GetEnergy();
MassType m = corsika::particles::GetMass(p.GetPID());
// env.GetDensity();
const MassDensityType density = 1.25e-3 * kilogram / ( 1_cm * 1_cm * 1_cm );
void setHadronsUnstable(){
// name? also makes EM particles stable
// loop over all particles in sibyll
// should be changed to loop over human readable list
// i.e. corsika::particles::ListOfParticles()
std::cout << "Sibyll: setting hadrons unstable.." << std::endl;
// make ALL particles unstable, then set EM stable
for(auto &p: corsika2sibyll){
//std::cout << (int)p << std::endl;
const int sibCode = (int)p;
// skip unknown and antiparticles
if( sibCode< 1) continue;
//std::cout << "Sibyll: Decay: setting " << ConvertFromSibyll( static_cast<SibyllCode> ( sibCode ) ) << " unstable" << std::endl;
s_csydec_.idb[ sibCode - 1 ] = abs( s_csydec_.idb[ sibCode - 1 ] );
//std::cout << "decay table value: " << s_csydec_.idb[ sibCode - 1 ] << std::endl;
}
// set Leptons and Proton and Neutron stable
// use stack to loop over particles
setup::Stack ds;
ds.NewParticle().SetPID(corsika::particles::Code::Proton);
ds.NewParticle().SetPID(corsika::particles::Code::Neutron);
ds.NewParticle().SetPID(corsika::particles::Code::Electron);
ds.NewParticle().SetPID(corsika::particles::Code::Positron);
ds.NewParticle().SetPID(corsika::particles::Code::NuE);
ds.NewParticle().SetPID(corsika::particles::Code::NuEBar);
ds.NewParticle().SetPID(corsika::particles::Code::MuMinus);
ds.NewParticle().SetPID(corsika::particles::Code::MuPlus);
ds.NewParticle().SetPID(corsika::particles::Code::NuMu);
ds.NewParticle().SetPID(corsika::particles::Code::NuMuBar);
for (auto& p : ds) {
int s_id = process::sibyll::ConvertToSibyllRaw(p.GetPID());
// set particle stable by setting table value negative
// cout << "Sibyll: setting " << p.GetPID() << "(" << s_id << ")"
// << " stable in Sibyll .." << endl;
s_csydec_.idb[ s_id - 1 ] = (-1) * abs(s_csydec_.idb[ s_id - 1 ]);
p.Delete();
}
}
const double gamma = E / m / constants::cSquared;
// lifetimes not implemented yet
TimeType t0;
switch( p.GetPID() ){
case corsika::particles::Code::PiPlus :
t0 = 2.6e-8 * 1_s;
break;
case corsika::particles::Code::PiMinus :
t0 = 2.6e-8 * 1_s;
break;
class ProcessDecay : public corsika::process::BaseProcess<ProcessDecay> {
public:
ProcessDecay() {}
void Init() {
//setHadronsUnstable();
}
case corsika::particles::Code::KPlus :
t0 = 1.e-5 * 1_s;
break;
void setAllStable(){
// name? also makes EM particles stable
// loop over all particles in sibyll
// should be changed to loop over human readable list
// i.e. corsika::particles::ListOfParticles()
for(auto &p: corsika2sibyll){
//std::cout << (int)p << std::endl;
const int sibCode = (int)p;
// skip unknown and antiparticles
if( sibCode< 1) continue;
std::cout << "Sibyll: Decay: setting " << ConvertFromSibyll( static_cast<SibyllCode> ( sibCode ) ) << " stable" << std::endl;
s_csydec_.idb[ sibCode - 1 ] = -1 * abs( s_csydec_.idb[ sibCode - 1 ] );
std::cout << "decay table value: " << s_csydec_.idb[ sibCode - 1 ] << std::endl;
}
}
case corsika::particles::Code::KMinus :
t0 = 1.e-5 * 1_s;
break;
friend void setHadronsUnstable();
default:
t0 = 1.e8 * 1_s;
break;
}
cout << "ProcessDecay: MinStep: t0: " << t0 << endl;
cout << "ProcessDecay: MinStep: gamma: " << gamma << endl;
cout << "ProcessDecay: MinStep: density: " << density << endl;
// return as column density
const double x0 = density * t0 * gamma * constants::c / kilogram * 1_cm * 1_cm;
cout << "ProcessDecay: MinStep: x0: " << x0 << endl;
return x0;
}
template <typename Particle, typename Stack>
void DoDiscrete(Particle& p, Stack& s) const {
template <typename Particle>
double MinStepLength(Particle& p, setup::Trajectory&) const {
EnergyType E = p.GetEnergy();
MassType m = corsika::particles::GetMass(p.GetPID());
// env.GetDensity();
const MassDensityType density = 1.25e-3 * kilogram / ( 1_cm * 1_cm * 1_cm );
}
template <typename Particle, typename Stack>
EProcessReturn DoContinuous(Particle&, setup::Trajectory&, Stack&) const {
return EProcessReturn::eOk;
}
const double gamma = E / m / constants::cSquared;
};
TimeType t0 = GetLifetime( p.GetPID() );
cout << "ProcessDecay: MinStep: t0: " << t0 << endl;
cout << "ProcessDecay: MinStep: gamma: " << gamma << endl;
cout << "ProcessDecay: MinStep: density: " << density << endl;
// return as column density
const double x0 = density * t0 * gamma * constants::c / kilogram * 1_cm * 1_cm;
cout << "ProcessDecay: MinStep: x0: " << x0 << endl;
return x0;
}
template <typename Particle, typename Stack>
void DoDiscrete(Particle& p, Stack& s) const {
}
template <typename Particle, typename Stack>
EProcessReturn DoContinuous(Particle&, setup::Trajectory&, Stack&) const {
return EProcessReturn::eOk;
}
};
}
}
......
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