G4VKinkyStringDecay Class Reference

#include <G4VKinkyStringDecay.hh>

Public Member Functions
	G4VKinkyStringDecay (G4VLongitudinalStringDecay *theModal)
virtual	~G4VKinkyStringDecay ()
G4KineticTrackVector *	FragmentString (const G4ExcitedString &String)
virtual G4double	GetLightConeGluonZ (G4double zmin, G4double zmax)
void	SetLongitudinalStringDecay (G4VLongitudinalStringDecay *)

Detailed Description

Definition at line 43 of file G4VKinkyStringDecay.hh.

Constructor & Destructor Documentation

G4VKinkyStringDecay::G4VKinkyStringDecay

(

G4VLongitudinalStringDecay *

theModal

)

Definition at line 43 of file G4VKinkyStringDecay.cc.

References SetLongitudinalStringDecay().

   {
   this->SetLongitudinalStringDecay(theModal);
   }

virtual G4VKinkyStringDecay::~G4VKinkyStringDecay ( )

inlinevirtual

Definition at line 49 of file G4VKinkyStringDecay.hh.

{};

Member Function Documentation

G4KineticTrackVector * G4VKinkyStringDecay::FragmentString

(

const G4ExcitedString &

String

)

Definition at line 63 of file G4VKinkyStringDecay.cc.

References CLHEP::HepLorentzVector::e(), G4VLongitudinalStringDecay::FragmentString(), G4Parton::Get4Momentum(), G4ExcitedString::GetAntiColorParton(), G4ExcitedString::GetColorParton(), G4ExcitedString::GetDirection(), G4ExcitedString::GetGluon(), GetLightConeGluonZ(), G4Parton::GetPosition(), CLHEP::Hep3Vector::mag2(), CLHEP::HepLorentzVector::pz(), G4VLongitudinalStringDecay::SampleQuarkFlavor(), G4VLongitudinalStringDecay::SampleQuarkPt(), G4Parton::Set4Momentum(), G4Parton::SetPosition(), CLHEP::Hep3Vector::setZ(), and z.

    {
    G4LorentzVector Mom = String.GetGluon()->Get4Momentum();
    G4ThreeVector Pos = String.GetGluon()->GetPosition();
    G4int QuarkEncoding = theLongitudinalStringDecay->SampleQuarkFlavor();
    G4ThreeVector Pquark=theLongitudinalStringDecay->SampleQuarkPt();
    G4double Pt2 = Pquark.mag2();
    G4double z = GetLightConeGluonZ(0, 1);
    G4double w = Mom.e() + Mom.pz();
    //... now compute quark longitudinal momentum and energy

    Pquark.setZ(  (z*w - Pt2/(z*w))*0.5);
    G4double E  = (z*w + Pt2/(z*w))*0.5;
    
    G4Parton* AntiColor = new G4Parton(-QuarkEncoding);
    AntiColor->SetPosition(Pos);
    G4LorentzVector AntiColorMom(-Pquark, E);
    AntiColor->Set4Momentum(AntiColorMom);
    G4Parton* Color = new G4Parton(*String.GetColorParton());
    G4ExcitedString Str1(Color, AntiColor, String.GetDirection());
    G4KineticTrackVector* KTV1 = theLongitudinalStringDecay->FragmentString(Str1);

    Color = new G4Parton(QuarkEncoding);
    Color->SetPosition(Pos);
    G4LorentzVector ColorMom(Pquark, E);
    Color->Set4Momentum(ColorMom);
    AntiColor = new G4Parton(*String.GetAntiColorParton());
    G4ExcitedString Str2(Color, AntiColor, String.GetDirection());
    G4KineticTrackVector* KTV2 = theLongitudinalStringDecay->FragmentString(Str2);

    if (KTV1 && KTV2)
         while(!KTV2->empty())
     {
             KTV1->push_back(KTV2->back());
         KTV1->erase(KTV1->end()-1);
     }
    return KTV1;            
    } 

G4double G4VKinkyStringDecay::GetLightConeGluonZ ( G4double  zmin, G4double  zmax  )

virtual

Definition at line 50 of file G4VKinkyStringDecay.cc.

References G4UniformRand, sqr(), and z.

Referenced by FragmentString().

    {
    G4double z, yf;
    do {
       z = zmin + G4UniformRand()*(zmax-zmin);
       yf = z*z +sqr(1 - z);    
       } 
    while (G4UniformRand() > yf); 
    return z;
    }

void G4VKinkyStringDecay::SetLongitudinalStringDecay ( G4VLongitudinalStringDecay *  theModal )

inline

Definition at line 64 of file G4VKinkyStringDecay.hh.

Referenced by G4VKinkyStringDecay().

   {
   theLongitudinalStringDecay = theModal;
   }

---

The documentation for this class was generated from the following files:

• G4VKinkyStringDecay.hh
• G4VKinkyStringDecay.cc