Geant4  10.01.p02
G4MultiBodyMomentumDist.cc
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26 // $Id: G4MultiBodyMomentumDist.cc 71652 2013-06-19 17:20:45Z mkelsey $
27 // Author: Michael Kelsey (SLAC)
28 // Date: 7 March 2013
29 //
30 // Description: Singleton class to evaluate multi-body momentum distribution
31 // functions based on intial state codes and multiplicity.
32 //
33 // 20130308 Use envvar to enable/disable use of 3-body generators.
34 // 20130619 Change singleton instance to be thread-local, to avoid collisions.
35 // 20141121 Use G4AutoDelete to avoid end-of-thread memory leaks
36 
38 #include "G4AutoDelete.hh"
39 #include "G4CascadeParameters.hh"
40 #include "G4NuclNucl3BodyMomDst.hh"
41 #include "G4NuclNucl4BodyMomDst.hh"
42 #include "G4HadNucl3BodyMomDst.hh"
43 #include "G4HadNucl4BodyMomDst.hh"
44 #include "G4InuclParticleNames.hh"
45 using namespace G4InuclParticleNames;
46 
47 
48 // Singleton is created at first invocation
49 
51 
53  if (!theInstance) {
54  theInstance = new G4MultiBodyMomentumDist;
55  G4AutoDelete::Register(theInstance);
56  }
57 
58  return theInstance;
59 }
60 
61 // Constructor and destructor
62 
64  : nn3BodyDst(new G4NuclNucl3BodyMomDst),
65  nn4BodyDst(new G4NuclNucl4BodyMomDst),
66  hn3BodyDst(new G4HadNucl3BodyMomDst),
67  hn4BodyDst(new G4HadNucl4BodyMomDst) {;}
68 
70  delete nn3BodyDst;
71  delete nn4BodyDst;
72  delete hn3BodyDst;
73  delete hn4BodyDst;
74 }
75 
76 
77 // Set verbosity for all generators (const-cast required)
78 
80  const_cast<G4MultiBodyMomentumDist*>(GetInstance())->passVerbose(verbose);
81 }
82 
84  if (nn3BodyDst) nn3BodyDst->setVerboseLevel(verbose);
85  if (nn4BodyDst) nn4BodyDst->setVerboseLevel(verbose);
86  if (hn3BodyDst) hn3BodyDst->setVerboseLevel(verbose);
87  if (hn4BodyDst) hn4BodyDst->setVerboseLevel(verbose);
88 }
89 
90 
91 // Return appropriate distribution generator for specified interaction
92 
93 const G4VMultiBodyMomDst*
95  if (is == pro*pro || is == pro*neu || is == neu*neu) {
96  //***** REMOVED BY VLADIMIR UZHINSKY 18 JULY 2011
97  if (G4CascadeParameters::use3BodyMom() && mult==3) return nn3BodyDst;
98  return nn4BodyDst;
99  }
100 
101  else { // FIXME: All other initial states use pi-N scattering
102  //***** REMOVED BY VLADIMIR UZHINSKY 18 JULY 2011
103  if (G4CascadeParameters::use3BodyMom() && mult==3) return hn3BodyDst;
104  return hn4BodyDst;
105  }
106 
107  // Invalid interaction
108  return 0;
109 }
static void setVerboseLevel(G4int vb=0)
#define G4ThreadLocal
Definition: tls.hh:89
virtual void setVerboseLevel(G4int verbose=0)
int G4int
Definition: G4Types.hh:78
G4HadNucl3BodyMomDst * hn3BodyDst
void Register(T *inst)
Definition: G4AutoDelete.hh:65
G4NuclNucl3BodyMomDst * nn3BodyDst
const G4VMultiBodyMomDst * ChooseDist(G4int is, G4int mult) const
static G4ThreadLocal G4MultiBodyMomentumDist * theInstance
static const G4MultiBodyMomentumDist * GetInstance()
static G4bool use3BodyMom()
G4NuclNucl4BodyMomDst * nn4BodyDst
G4HadNucl4BodyMomDst * hn4BodyDst