Import Geant4 10.0.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -49,6 +49,7 @@
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// Declare the categories of collisions the Scatterer can handle
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typedef GROUP2(G4CollisionNN, G4CollisionMesonBaryon) theChannels;
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//----------------------------------------------------------------------------
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G4Scatterer::G4Scatterer()
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{
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@@ -56,6 +57,7 @@ G4Scatterer::G4Scatterer()
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G4ForEach<theChannels>::Apply(&aR, &collisions);
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}
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//----------------------------------------------------------------------------
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G4Scatterer::~G4Scatterer()
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{
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@@ -63,7 +65,9 @@ G4Scatterer::~G4Scatterer()
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collisions.clear();
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}
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G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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//----------------------------------------------------------------------------
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G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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{
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G4double time = DBL_MAX;
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@@ -71,35 +75,35 @@ G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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G4LorentzVector mom1 = trk1.GetTrackingMomentum();
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// G4cout << "zcomp=" << std::abs(mom1.vect().unit().z() -1 ) << G4endl;
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G4double collisionTime;
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if ( std::abs(mom1.vect().unit().z() -1 ) < 1e-6 )
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if ( std::abs(mom1.vect().unit().z() -1 ) < 1e-6 )
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{
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G4ThreeVector position = trk2.GetPosition() - trk1.GetPosition();
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G4double deltaz=position.z();
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G4double velocity = mom1.z()/mom1.e() * c_light;
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collisionTime=deltaz/velocity;
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distance_fast=position.x()*position.x() + position.y()*position.y();
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} else {
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// The nucleons of the nucleus are FROZEN, ie. do not move..
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G4ThreeVector position = trk2.GetPosition() - trk1.GetPosition();
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G4ThreeVector position = trk2.GetPosition() - trk1.GetPosition();
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G4ThreeVector velocity = mom1.vect()/mom1.e() * c_light; // mom1.boostVector() will exit on slightly negative mass
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collisionTime = (position * velocity) / velocity.mag2(); // can't divide by /c_light;
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position -= velocity * collisionTime;
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distance_fast=position.mag2();
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// if ( collisionTime>0 ) G4cout << " dis1/2 square" << dis1 <<" "<< dis2 << G4endl;
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// collisionTime = GetTimeToClosestApproach(trk1,trk2);
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}
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if (collisionTime > 0)
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{
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{
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static const G4double maxCrossSection = 500*millibarn;
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if(0.7*pi*distance_fast>maxCrossSection) return time;
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G4LorentzVector mom2(0,0,0,trk2.Get4Momentum().mag());
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// G4ThreeVector momLab = mom1.vect();// frozen Nucleus - mom2.vect();
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@@ -112,7 +116,7 @@ G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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G4LorentzVector coordinate1(trk1.GetPosition(), 100.);
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G4LorentzVector coordinate2(trk2.GetPosition(), 100.);
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G4ThreeVector pos = ((toCMSFrame * coordinate1).vect() -
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G4ThreeVector pos = ((toCMSFrame * coordinate1).vect() -
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(toCMSFrame * coordinate2).vect());
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G4ThreeVector mom = mom1.vect() - mom2.vect();
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@@ -121,40 +125,40 @@ G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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G4double distance = pos * pos - (pos*mom) * (pos*mom) / (mom.mag2());
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// G4cout << " disDiff " << distance-disLab << " " << disLab
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// G4cout << " disDiff " << distance-disLab << " " << disLab
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// << " " << std::abs(distance-disLab)/distance << G4endl
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// << " mom/Lab " << mom << " " << momLab << G4endl
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// << " pos/Lab " << pos << " " << posLab
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// << " pos/Lab " << pos << " " << posLab
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// << G4endl;
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if(pi*distance>maxCrossSection) return time;
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// charged particles special
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static const G4double maxChargedCrossSection = 200*millibarn;
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if(std::abs(trk1.GetDefinition()->GetPDGCharge())>0.1 &&
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if(std::abs(trk1.GetDefinition()->GetPDGCharge())>0.1 &&
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std::abs(trk2.GetDefinition()->GetPDGCharge())>0.1 &&
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pi*distance>maxChargedCrossSection) return time;
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G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
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// neutrons special
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// neutrons special pn is largest cross-section, but above 1.91 GeV is less than 200 mb
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if(( trk1.GetDefinition() == G4Neutron::Neutron() ||
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trk1.GetDefinition() == G4Neutron::Neutron() ) &&
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sqrtS>1.91*GeV && pi*distance>maxChargedCrossSection) return time;
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trk2.GetDefinition() == G4Neutron::Neutron() ) &&
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sqrtS>1.91*GeV && pi*distance>maxChargedCrossSection) return time;
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/*
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* if(distance <= sqr(1.14*fermi))
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* {
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* time = collisionTime;
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*
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*
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* *
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* * G4cout << "Scatter distance/time: " << std::sqrt(distance)/fermi <<
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* * " / "<< time/ns << G4endl;
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* * G4ThreeVector pos1=trk1.GetPosition();
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* * G4ThreeVector pos1=trk1.GetPosition();
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* * G4ThreeVector pos2=trk2.GetPosition();
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* * G4LorentzVector xmom1 = trk1.Get4Momentum();
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* * G4LorentzVector xmom2 = trk2.Get4Momentum();
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* * G4LorentzVector xmom2 = trk2.Get4Momentum();
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* * G4cout << "position1: " << pos1.x() << " " << pos1.y() << " "
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* * << pos1.z();
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* * << pos1.z();
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* * pos1+=(collisionTime*c_light/xmom1.e())*xmom1.vect();
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* * G4cout << " straight line trprt: "
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* * << pos1.x() << " " << pos1.y() << " "
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@@ -169,15 +173,15 @@ G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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* * G4cout << "straight line distance :" << (pos1-pos2).mag()/fermi << G4endl;
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* *
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* }
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*
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*
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* if(1)
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* return time;
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*/
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if ((trk1.GetActualMass()+trk2.GetActualMass()) > sqrtS) return time;
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G4VCollision* collision = FindCollision(trk1,trk2);
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G4double totalCrossSection;
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// The cross section is interpreted geometrically as an area
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@@ -260,8 +264,10 @@ G4double G4Scatterer::GetTimeToInteraction(const G4KineticTrack& trk1,
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return time;
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}
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G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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//----------------------------------------------------------------------------
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G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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{
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// G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
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G4LorentzVector pInitial=trk1.Get4Momentum() + trk2.Get4Momentum();
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@@ -273,12 +279,12 @@ G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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+ trk2.GetDefinition()->GetPDGCharge());
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G4int baryonBalance = trk1.GetDefinition()->GetBaryonNumber()
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+ trk2.GetDefinition()->GetBaryonNumber();
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G4VCollision* collision = FindCollision(trk1,trk2);
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if (collision != 0)
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{
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G4double aCrossSection = collision->CrossSection(trk1,trk2);
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if (aCrossSection > 0.0)
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if (aCrossSection > 0.0)
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{
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@@ -297,7 +303,7 @@ G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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if(!products || products->size() == 0) return products;
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#ifdef debug_G4Scatterer
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G4cout << "size of FS: "<<products->size()<<G4endl;
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G4cout << "size of FS: "<<products->size()<<G4endl;
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#endif
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G4KineticTrack *final= products->operator[](0);
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@@ -332,7 +338,7 @@ G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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}
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G4cout << "Scatterer costh= " << trk1.Get4Momentum().vect().unit() *(products->operator[](0))->Get4Momentum().vect().unit()<< G4endl;
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#endif
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for(size_t hpw=0; hpw<products->size(); hpw++)
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{
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energyBalance-=products->operator[](hpw)->Get4Momentum().t();
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@@ -363,14 +369,15 @@ G4KineticTrackVector* G4Scatterer::Scatter(const G4KineticTrack& trk1,
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"Problem in ChargeBalance");
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}
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return products;
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}
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}
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}
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}
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return NULL;
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}
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//----------------------------------------------------------------------------
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G4VCollision* G4Scatterer::FindCollision(const G4KineticTrack& trk1,
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G4VCollision* G4Scatterer::FindCollision(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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{
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G4VCollision* collisionInCharge = 0;
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@@ -387,7 +394,7 @@ G4VCollision* G4Scatterer::FindCollision(const G4KineticTrack& trk1,
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}
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// if(collisionInCharge)
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// {
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// G4cout << "found collision : "
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// G4cout << "found collision : "
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// << collisionInCharge->GetName()<< " "
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// << "for "
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// << trk1.GetDefinition()->GetParticleName()<<" + "
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@@ -396,9 +403,11 @@ G4VCollision* G4Scatterer::FindCollision(const G4KineticTrack& trk1,
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// }
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return collisionInCharge;
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}
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G4double G4Scatterer::GetCrossSection(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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//----------------------------------------------------------------------------
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G4double G4Scatterer::GetCrossSection(const G4KineticTrack& trk1,
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const G4KineticTrack& trk2)
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{
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G4VCollision* collision = FindCollision(trk1,trk2);
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G4double aCrossSection = 0;
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@@ -409,9 +418,10 @@ G4double G4Scatterer::GetCrossSection(const G4KineticTrack& trk1,
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return aCrossSection;
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}
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//----------------------------------------------------------------------------
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const std::vector<G4CollisionInitialState *> & G4Scatterer::
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GetCollisions(G4KineticTrack * aProjectile,
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GetCollisions(G4KineticTrack * aProjectile,
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std::vector<G4KineticTrack *> & someCandidates,
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G4double aCurrentTime)
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{
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@@ -428,16 +438,17 @@ GetCollisions(G4KineticTrack * aProjectile,
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aTarget.push_back(*j);
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theCollisions.push_back(
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new G4CollisionInitialState(collisionTime+aCurrentTime, aProjectile, aTarget, this) );
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// G4cerr <<" !!!!!! debug collisions "<<collisionTime<<" "<<pkt->GetDefinition()->GetParticleName()<<G4endl;
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// G4cerr <<" !!!!!! debug collisions "<<collisionTime<<" "<<pkt->GetDefinition()->GetParticleName()<<G4endl;
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}
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return theCollisions;
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}
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G4KineticTrackVector * G4Scatterer::
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GetFinalState(G4KineticTrack * aProjectile,
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GetFinalState(G4KineticTrack * aProjectile,
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std::vector<G4KineticTrack *> & theTargets)
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{
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G4KineticTrack target_reloc(*(theTargets[0]));
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return Scatter(*aProjectile, target_reloc);
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}
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//----------------------------------------------------------------------------
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