Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/hadronic/util/src/G4Nucleon.cc

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 26 //
 27 //
 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 
 38 G4Nucleon::G4Nucleon()
 39 : theBindingE(0.) , theParticleType(0), theSplitableHadron(0)
 40 {}
 41 
 42 G4Nucleon::~G4Nucleon()
 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 }   
 67