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Geant4/processes/hadronic/models/im_r_matrix/src/G4XAqmTotal.cc

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Diff markup

Differences between /processes/hadronic/models/im_r_matrix/src/G4XAqmTotal.cc (Version 11.3.0) and /processes/hadronic/models/im_r_matrix/src/G4XAqmTotal.cc (Version 5.0)


  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
  7 // * conditions of the Geant4 Software License    
  8 // * LICENSE and available at  http://cern.ch/    
  9 // * include a list of copyright holders.         
 10 // *                                              
 11 // * Neither the authors of this software syst    
 12 // * institutes,nor the agencies providing fin    
 13 // * work  make  any representation or  warran    
 14 // * regarding  this  software system or assum    
 15 // * use.  Please see the license in the file     
 16 // * for the full disclaimer and the limitatio    
 17 // *                                              
 18 // * This  code  implementation is the result     
 19 // * technical work of the GEANT4 collaboratio    
 20 // * By using,  copying,  modifying or  distri    
 21 // * any work based  on the software)  you  ag    
 22 // * use  in  resulting  scientific  publicati    
 23 // * acceptance of all terms of the Geant4 Sof    
 24 // *******************************************    
 25 //                                                
 26 //                                                
 27 // -------------------------------------------    
 28 //      GEANT4 Class file                         
 29 //                                                
 30 //      For information related to this code c    
 31 //                                                
 32 //      File name:     G4XAqmTotal                
 33 //                                                
 34 //      Author:                                   
 35 //                                                
 36 //      Creation date: 15 April 1999              
 37 //                                                
 38 //      Modifications:                            
 39 //                                                
 40 // Additive Quark Model total cross section       
 41 // (H.J. Lipkin and F. Scheck, Phys.Rev. 16 (1    
 42 //                                                
 43 // -------------------------------------------    
 44                                                   
 45 #include "globals.hh"                             
 46 #include "G4ios.hh"                               
 47 #include "G4Pow.hh"                               
 48 #include "G4SystemOfUnits.hh"                     
 49 #include "G4XAqmTotal.hh"                         
 50 #include "G4KineticTrack.hh"                      
 51 #include "G4ParticleDefinition.hh"                
 52                                                   
 53                                                   
 54 // Validity range of this cross-section           
 55 const G4double G4XAqmTotal::_lowLimit = 0.;       
 56 const G4double G4XAqmTotal::_highLimit = DBL_M    
 57                                                   
 58 G4XAqmTotal::G4XAqmTotal()                        
 59 {                                                 
 60   // As a first approximation the model is ass    
 61   // the entire energy range                      
 62 }                                                 
 63                                                   
 64                                                   
 65 G4XAqmTotal::~G4XAqmTotal()                       
 66 { }                                               
 67                                                   
 68                                                   
 69 G4bool G4XAqmTotal::operator==(const G4XAqmTot    
 70 {                                                 
 71   return (this == (G4XAqmTotal *) &right);        
 72 }                                                 
 73                                                   
 74                                                   
 75 G4bool G4XAqmTotal::operator!=(const G4XAqmTot    
 76 {                                                 
 77   return (this != (G4XAqmTotal *) &right);        
 78 }                                                 
 79                                                   
 80                                                   
 81 G4double G4XAqmTotal::CrossSection(const G4Kin    
 82 {                                                 
 83   G4double sigma = 0.;                            
 84                                                   
 85   // Get strangeness content                      
 86   const G4ParticleDefinition* def1 = trk1.GetD    
 87   G4int sTrk1 = def1->GetQuarkContent(3) + def    
 88   const G4ParticleDefinition* def2 = trk2.GetD    
 89   G4int sTrk2 = def2->GetQuarkContent(3) + def    
 90                                                   
 91   // Get non-strange quark content                
 92   G4int qTrk1 = def1->GetQuarkContent(1) + def    
 93                 def1->GetQuarkContent(2) + def    
 94                 def1->GetQuarkContent(4) + def    
 95                 def1->GetQuarkContent(5) + def    
 96                 def1->GetQuarkContent(6) + def    
 97                                                   
 98   G4int qTrk2 = def2->GetQuarkContent(1) + def    
 99                 def2->GetQuarkContent(2) + def    
100                 def2->GetQuarkContent(4) + def    
101                 def2->GetQuarkContent(5) + def    
102                 def2->GetQuarkContent(6) + def    
103                                                   
104   G4double sRatio1 = 0.;                          
105   if (qTrk1 != 0) sRatio1 = sTrk1 / qTrk1;        
106                                                   
107   G4double sRatio2 = 0.;                          
108   if (qTrk2 != 0) sRatio2 = sTrk2 / qTrk2;        
109                                                   
110   // Calculate the number of colliding mesons     
111   G4int nMesons = 0;                              
112   G4int nQ1 = sTrk1 + qTrk1;                      
113                                                   
114   if (nQ1 == 2) nMesons++;                        
115   G4int nQ2 = sTrk2 + qTrk2;                      
116   if (nQ2 == 2) nMesons++;                        
117                                                   
118   // Cross-section (units to be checked!)         
119   sigma = 40. * G4Pow::GetInstance()->powN((2.    
120                                                   
121   return sigma;                                   
122 }                                                 
123                                                   
124                                                   
125 G4String G4XAqmTotal::Name() const                
126 {                                                 
127   G4String name("AqmTotalCrossSection");          
128   return name;                                    
129 }                                                 
130                                                   
131                                                   
132                                                   
133 G4bool G4XAqmTotal::IsValid(G4double e) const     
134 {                                                 
135   G4bool answer = InLimits(e,_lowLimit,_highLi    
136                                                   
137   return answer;                                  
138 }                                                 
139