Gabriele Cosmo
187 lines
4.5 KiB
C++
187 lines
4.5 KiB
C++
// This code implementation is the intellectual property of
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// the GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4ExcitedDeltaConstructor.hh,v 1.4 2000/02/27 07:48:50 kurasige Exp $
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// GEANT4 tag $Name: geant4-03-00 $
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//
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//
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// --------------------------------------------------------------
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// GEANT 4 class implementation file
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//
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// For information related to this code contact:
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// CERN, IT Division, ASD Group
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// History: first implementation, based on object model of
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// 10 oct 1998 H.Kurashige
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// ---------------------------------------------------------------
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#ifndef G4ExcitedDeltaConstructor_h
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#define G4ExcitedDeltaConstructor_h 1
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#include "globals.hh"
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#include "G4ios.hh"
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#include "G4ExcitedBaryonConstructor.hh"
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class G4ExcitedDeltaConstructor: public G4ExcitedBaryonConstructor
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{
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//This class is a utility class for construction
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//short lived particles
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public:
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G4ExcitedDeltaConstructor();
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virtual ~G4ExcitedDeltaConstructor();
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protected:
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virtual G4int GetEncoding(G4int iIsoSpin3, G4int idxState);
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protected:
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virtual G4bool Exist( G4int ){return true;}
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virtual G4int GetQuarkContents(G4int, G4int);
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virtual G4String GetName(G4int iIso3, G4int iState);
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virtual G4String GetMultipletName(G4int iState);
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virtual G4double GetMass(G4int iState);
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virtual G4double GetWidth(G4int iState);
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virtual G4int GetiSpin(G4int iState);
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virtual G4int GetiParity(G4int iState);
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virtual G4int GetEncodingOffset(G4int iState);
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virtual G4DecayTable* CreateDecayTable(const G4String& name,
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G4int iIso3, G4int iState,
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G4bool fAnti = false);
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private:
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G4DecayTable* AddNGammaMode( G4DecayTable* table, const G4String& name,
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G4double br, G4int iIso3, G4bool fAnti);
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G4DecayTable* AddNPiMode( G4DecayTable* table, const G4String& name,
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G4double br, G4int iIso3, G4bool fAnti);
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G4DecayTable* AddNRhoMode( G4DecayTable* table, const G4String& name,
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G4double br, G4int iIso3, G4bool fAnti);
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G4DecayTable* AddDeltaPiMode( G4DecayTable* table, const G4String& name,
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G4double br, G4int iIso3, G4bool fAnti);
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G4DecayTable* AddNStarPiMode( G4DecayTable* table, const G4String& name,
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G4double br, G4int iIso3, G4bool fAnti);
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public:
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enum { NStates = 9 };
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private:
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enum { DeltaIsoSpin = 3 };
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private:
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static const char* name[ NStates ];
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static const G4double mass[ NStates ];
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static const G4double width[ NStates ];
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static const G4int iSpin[ NStates ];
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static const G4int iParity[ NStates ];
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static const G4int encodingOffset[ NStates ];
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public:
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enum { NumberOfDecayModes = 5};
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private:
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enum { NGamma=0, NPi=1, NRho=2, DeltaPi=3, NStarPi=4 };
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private:
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static const G4double bRatio[ NStates ][ NumberOfDecayModes];
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};
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inline
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G4double G4ExcitedDeltaConstructor::GetMass(G4int iState)
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{
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return mass[iState];
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}
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inline
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G4double G4ExcitedDeltaConstructor::GetWidth(G4int iState)
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{
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return width[iState];
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}
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inline
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G4int G4ExcitedDeltaConstructor::GetiSpin(G4int iState)
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{
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return iSpin[iState];
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}
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inline
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G4int G4ExcitedDeltaConstructor::GetiParity(G4int iState)
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{
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return iParity[iState];
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}
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inline
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G4int G4ExcitedDeltaConstructor::GetEncodingOffset(G4int iState)
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{
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return encodingOffset[iState];
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}
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inline
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G4int G4ExcitedDeltaConstructor::GetQuarkContents(G4int iQ, G4int iIso3)
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{
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// Quark contents
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// iIso3 = +3 : uuu
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// iIso3 = +1 : uud
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// iIso3 = -1 : udd
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// iIso3 = -3 : ddd
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G4int quark=0;
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if ( iQ == 0 ){
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if ( iIso3 == -3 ){
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// d-quark
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quark = 1;
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} else {
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// u-quark
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quark = 2;
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}
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} else if ( iQ == 2 ){
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if ( iIso3 == +3 ){
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// u-quark
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quark = 2;
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} else {
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// d-quark
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quark = 1;
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}
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} else {
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if (( iIso3 == -1 )||( iIso3 == -3 )) {
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// d-quark
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quark = 1;
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} else {
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// u-quark
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quark = 2;
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}
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}
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return quark;
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}
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inline
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G4String G4ExcitedDeltaConstructor::GetMultipletName(G4int iState)
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{
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return name[iState];
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}
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inline
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G4String G4ExcitedDeltaConstructor::GetName(G4int iIso3, G4int iState)
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{
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G4String particle = name[iState];
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if ( iIso3 == -3 ){
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particle += "-";
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} else if ( iIso3 == -1 ){
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particle += "0";
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} else if ( iIso3 == +1 ){
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particle += "+";
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} else {
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particle += "++";
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}
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return particle;
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}
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#endif
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