G4PiMinusStopMaterial Class Reference

#include <G4PiMinusStopMaterial.hh>

Inheritance diagram for G4PiMinusStopMaterial:

G4PiMinusStopAl G4PiMinusStopC G4PiMinusStopCo G4PiMinusStopCu G4PiMinusStopLi G4PiMinusStopN G4PiMinusStopO G4PiMinusStopPb G4PiMinusStopTa

Public Member Functions

 G4PiMinusStopMaterial ()
virtual ~G4PiMinusStopMaterial ()
virtual std::vector< G4ParticleDefinition * > * DefinitionVector ()
virtual std::vector< G4LorentzVector * > * P4Vector (const G4double binding, const G4double mass)
virtual G4double FinalNucleons ()=0

Protected Member Functions

G4double GenerateAngle (G4double range)
G4LorentzVector MakeP4 (G4double p, G4double theta, G4double phi, G4double e)
G4double RecoilEnergy (const G4double mass)

Protected Attributes

std::vector< G4ParticleDefinition * > * _definitions
std::vector< G4LorentzVector * > * _momenta
G4DistributionGenerator_distributionE
G4DistributionGenerator_distributionAngle
G4double theR

Detailed Description

Definition at line 49 of file G4PiMinusStopMaterial.hh.


Constructor & Destructor Documentation

G4PiMinusStopMaterial::G4PiMinusStopMaterial (  ) 

Definition at line 55 of file G4PiMinusStopMaterial.cc.

References _definitions, _distributionAngle, _distributionE, _momenta, and theR.

00056 {
00057   _definitions = 0;
00058   _momenta = 0;
00059   _distributionE = 0;
00060   _distributionAngle = 0;
00061   theR = 0.5;
00062 }

G4PiMinusStopMaterial::~G4PiMinusStopMaterial (  )  [virtual]

Definition at line 67 of file G4PiMinusStopMaterial.cc.

References _definitions, _distributionAngle, _distributionE, and _momenta.

00068 {
00069   if (_definitions != 0) delete _definitions;
00070   _definitions = 0;
00071 
00072   //A.R. 26-Jul-2012 Coverity fix
00073   if (_momenta != 0) {
00074     for (unsigned int i=0; i<_momenta->size(); i++) delete(*_momenta)[i];
00075     delete _momenta;
00076   }
00077 
00078   delete _distributionE;
00079   delete _distributionAngle;
00080 }


Member Function Documentation

std::vector< G4ParticleDefinition * > * G4PiMinusStopMaterial::DefinitionVector (  )  [virtual]

Definition at line 82 of file G4PiMinusStopMaterial.cc.

References _definitions, G4UniformRand, G4Neutron::Neutron(), G4Proton::Proton(), and theR.

Referenced by G4PiMinusStopAbsorption::DoAbsorption().

00083 {
00084 
00085   _definitions->push_back(G4Neutron::Neutron());
00086 
00087   G4double ranflat = G4UniformRand();
00088   if (ranflat < theR)
00089     { _definitions->push_back(G4Proton::Proton()); }
00090   else
00091     { _definitions->push_back(G4Neutron::Neutron()); }
00092   
00093   return _definitions;
00094 
00095 }

virtual G4double G4PiMinusStopMaterial::FinalNucleons (  )  [pure virtual]

Implemented in G4PiMinusStopAl, G4PiMinusStopC, G4PiMinusStopCo, G4PiMinusStopCu, G4PiMinusStopLi, G4PiMinusStopN, G4PiMinusStopO, G4PiMinusStopPb, and G4PiMinusStopTa.

Referenced by G4PiMinusStopAbsorption::DoAbsorption().

G4double G4PiMinusStopMaterial::GenerateAngle ( G4double  range  )  [protected]

Definition at line 165 of file G4PiMinusStopMaterial.cc.

References G4UniformRand.

Referenced by P4Vector().

00166 {
00167   G4double ranflat = G4UniformRand();
00168   G4double value = ranflat * x;
00169   return value;
00170 }

G4LorentzVector G4PiMinusStopMaterial::MakeP4 ( G4double  p,
G4double  theta,
G4double  phi,
G4double  e 
) [protected]

Definition at line 172 of file G4PiMinusStopMaterial.cc.

Referenced by P4Vector().

00173 {
00174   //  G4LorentzVector p4;
00175   G4double px = p * std::sin(theta) * std::cos(phi);
00176   G4double py = p * std::sin(theta) * std::sin(phi);
00177   G4double pz = p * std::cos(theta);
00178   G4LorentzVector p4(px,py,pz,e);
00179   return p4;
00180 }

std::vector< G4LorentzVector * > * G4PiMinusStopMaterial::P4Vector ( const G4double  binding,
const G4double  mass 
) [virtual]

Definition at line 98 of file G4PiMinusStopMaterial.cc.

References _distributionAngle, _distributionE, _momenta, G4UniformRand, G4DistributionGenerator::Generate(), GenerateAngle(), G4ParticleDefinition::GetPDGMass(), MakeP4(), G4INCL::Math::pi, and G4PionMinus::PionMinus().

Referenced by G4PiMinusStopAbsorption::DoAbsorption().

00100 {
00101   // Generate energy of direct absorption products according to experimental
00102   // data.  The energy distribution of the two nucleons is assumed to be the
00103   // same for protons and neutrons.  
00104 
00105   G4double eKin1;
00106   G4double eKin2;
00107   G4double eRecoil;
00108 
00109   // Assume absorption on two nucleons
00110   G4int nNucleons = 2;
00111   G4double availableE = G4PionMinus::PionMinus()->GetPDGMass() - nNucleons * binding;
00112   G4LorentzVector p1;
00113   G4LorentzVector p2;
00114 
00115   do 
00116     {  
00117       G4double ranflat;
00118       G4double p;
00119       G4double energy;
00120       G4double mass;
00121 
00122       ranflat = G4UniformRand();
00123       eKin1 = _distributionE->Generate(ranflat);
00124       mass = (*_definitions)[0]->GetPDGMass();
00125       energy = eKin1 + mass;
00126       p = std::sqrt(energy*energy - mass*mass);
00127       G4double theta1 = pi*G4UniformRand();
00128       G4double phi1 = GenerateAngle(2.*pi);
00129       p1 = MakeP4(p,theta1,phi1,energy);
00130 
00131       ranflat = G4UniformRand();
00132       eKin2 = _distributionE->Generate(ranflat);
00133       mass = (*_definitions)[1]->GetPDGMass();
00134       energy = eKin2 + mass;
00135       p = std::sqrt(energy*energy - mass*mass);
00136       ranflat = G4UniformRand();
00137       G4double opAngle = _distributionAngle->Generate(ranflat);
00138       G4double theta2 = theta1 + opAngle;
00139       G4double phi2 = phi1 + opAngle;
00140   
00141       p2 = MakeP4(p,theta2,phi2,energy);
00142 
00143       G4double pNucleus = (p1.vect() + p2.vect()).mag();
00144       eRecoil = std::sqrt(pNucleus*pNucleus + massNucleus*massNucleus) - massNucleus;
00145 
00146       // ---- Debug     
00147       //      G4cout << " ---- binding = " << binding << ", nucleus mass = " << massNucleus 
00148       //             << ", p nucleus = " << pNucleus << G4endl;
00149       //      G4cout << "eKin1,2 " << eKin1 << " " << eKin2 << " eRecoil " << eRecoil 
00150       //             << " availableE " << availableE << G4endl;
00151       // ----
00152 
00153     }  while ((eKin1 + eKin2 + eRecoil) > availableE);
00154   
00155   //A.R. 26-Jul-2012 Coverity fix
00156   if (_momenta != 0) {
00157     _momenta->push_back(new G4LorentzVector(p1));
00158     _momenta->push_back(new G4LorentzVector(p2));
00159   }
00160 
00161   return _momenta;
00162 
00163 }

G4double G4PiMinusStopMaterial::RecoilEnergy ( const G4double  mass  )  [protected]

Definition at line 182 of file G4PiMinusStopMaterial.cc.

References _momenta.

00183 {
00184   G4ThreeVector p(0.,0.,0.);
00185 
00186   //A.R. 26-Jul-2012 Coverity fix
00187   if (_momenta != 0) {  
00188     for (unsigned int i = 0; i< _momenta->size(); i++)
00189       {
00190         p = p + (*_momenta)[i]->vect();
00191       }
00192   }
00193 
00194   G4double pNucleus = p.mag();
00195   G4double eNucleus = std::sqrt(pNucleus*pNucleus + mass*mass);
00196 
00197   return eNucleus;
00198 }


Field Documentation

std::vector<G4ParticleDefinition* >* G4PiMinusStopMaterial::_definitions [protected]

Definition at line 80 of file G4PiMinusStopMaterial.hh.

Referenced by DefinitionVector(), G4PiMinusStopAl::G4PiMinusStopAl(), G4PiMinusStopC::G4PiMinusStopC(), G4PiMinusStopCo::G4PiMinusStopCo(), G4PiMinusStopCu::G4PiMinusStopCu(), G4PiMinusStopLi::G4PiMinusStopLi(), G4PiMinusStopMaterial(), G4PiMinusStopN::G4PiMinusStopN(), G4PiMinusStopO::G4PiMinusStopO(), G4PiMinusStopPb::G4PiMinusStopPb(), G4PiMinusStopTa::G4PiMinusStopTa(), and ~G4PiMinusStopMaterial().

G4DistributionGenerator* G4PiMinusStopMaterial::_distributionAngle [protected]

Definition at line 83 of file G4PiMinusStopMaterial.hh.

Referenced by G4PiMinusStopAl::G4PiMinusStopAl(), G4PiMinusStopC::G4PiMinusStopC(), G4PiMinusStopCo::G4PiMinusStopCo(), G4PiMinusStopCu::G4PiMinusStopCu(), G4PiMinusStopLi::G4PiMinusStopLi(), G4PiMinusStopMaterial(), G4PiMinusStopN::G4PiMinusStopN(), G4PiMinusStopO::G4PiMinusStopO(), G4PiMinusStopPb::G4PiMinusStopPb(), G4PiMinusStopTa::G4PiMinusStopTa(), P4Vector(), and ~G4PiMinusStopMaterial().

G4DistributionGenerator* G4PiMinusStopMaterial::_distributionE [protected]

Definition at line 82 of file G4PiMinusStopMaterial.hh.

Referenced by G4PiMinusStopAl::G4PiMinusStopAl(), G4PiMinusStopC::G4PiMinusStopC(), G4PiMinusStopCo::G4PiMinusStopCo(), G4PiMinusStopCu::G4PiMinusStopCu(), G4PiMinusStopLi::G4PiMinusStopLi(), G4PiMinusStopMaterial(), G4PiMinusStopN::G4PiMinusStopN(), G4PiMinusStopO::G4PiMinusStopO(), G4PiMinusStopPb::G4PiMinusStopPb(), G4PiMinusStopTa::G4PiMinusStopTa(), P4Vector(), and ~G4PiMinusStopMaterial().

std::vector<G4LorentzVector* >* G4PiMinusStopMaterial::_momenta [protected]

Definition at line 81 of file G4PiMinusStopMaterial.hh.

Referenced by G4PiMinusStopAl::G4PiMinusStopAl(), G4PiMinusStopC::G4PiMinusStopC(), G4PiMinusStopCo::G4PiMinusStopCo(), G4PiMinusStopCu::G4PiMinusStopCu(), G4PiMinusStopLi::G4PiMinusStopLi(), G4PiMinusStopMaterial(), G4PiMinusStopN::G4PiMinusStopN(), G4PiMinusStopO::G4PiMinusStopO(), G4PiMinusStopPb::G4PiMinusStopPb(), G4PiMinusStopTa::G4PiMinusStopTa(), P4Vector(), RecoilEnergy(), and ~G4PiMinusStopMaterial().

G4double G4PiMinusStopMaterial::theR [protected]

Definition at line 84 of file G4PiMinusStopMaterial.hh.

Referenced by DefinitionVector(), G4PiMinusStopAl::G4PiMinusStopAl(), G4PiMinusStopC::G4PiMinusStopC(), G4PiMinusStopCo::G4PiMinusStopCo(), G4PiMinusStopCu::G4PiMinusStopCu(), G4PiMinusStopLi::G4PiMinusStopLi(), G4PiMinusStopMaterial(), G4PiMinusStopN::G4PiMinusStopN(), G4PiMinusStopO::G4PiMinusStopO(), G4PiMinusStopPb::G4PiMinusStopPb(), and G4PiMinusStopTa::G4PiMinusStopTa().


The documentation for this class was generated from the following files:
Generated on Mon May 27 17:52:55 2013 for Geant4 by  doxygen 1.4.7