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G4Nucleon.cc
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28 #include "G4Nucleon.hh"
29 
30 // ------------------------------------------------------------
31 // GEANT 4 class implementation file
32 //
33 // ---------------- G4Nucleon ----------------
34 // by Gunter Folger, May 1998.
35 // class for a nucleon (inside a 3D Nucleus)
36 // ------------------------------------------------------------
37 
39 : theBindingE(0.) , theParticleType(0), theSplitableHadron(0)
40 {}
41 
43 {
44 }
45 
46 void G4Nucleon::Boost(const G4LorentzVector & aMomentum)
47 {
48 // see e.g. CERNLIB short writeup U101 for the algorithm
49  G4double mass=aMomentum.mag();
50  G4double factor=
51  ( theMomentum.vect()*aMomentum.vect()/(aMomentum.e()+mass) - theMomentum.e() ) / mass;
52 
53  theMomentum.setE(1/mass*theMomentum.dot(aMomentum));
54  theMomentum.setVect(factor*aMomentum.vect() + theMomentum.vect());
55 }
56 
57 #include <iostream>
58 std::ostream & operator << (std::ostream &stream, const G4Nucleon& nucleon)
59 {
60 // stream<< nucleon.GetDefinition()->GetParticleName()
61 // << " is " << nucleon.AreYouHit() ? " " : "not"
62 // << " hit. Momentum/position:" << G4endl;
63  stream<< " momentum : " << nucleon.Get4Momentum() << G4endl;
64  stream<< " position : " << nucleon.GetPosition() ;
65  return stream;
66 }
~G4Nucleon()
Definition: G4Nucleon.cc:42
std::ostream & operator<<(std::ostream &, const BasicVector3D< float > &)
#define G4endl
Definition: G4ios.hh:61
G4bool nucleon(G4int ityp)
void setVect(const Hep3Vector &)
const G4ThreeVector & GetPosition() const
Definition: G4Nucleon.hh:138
double G4double
Definition: G4Types.hh:76
G4LorentzVector theMomentum
Definition: G4Nucleon.hh:101
virtual const G4LorentzVector & Get4Momentum() const
Definition: G4Nucleon.hh:72
double mag() const
void Boost(const G4ThreeVector &beta)
Definition: G4Nucleon.hh:86
Hep3Vector vect() const
double dot(const HepLorentzVector &) const