G4UnknownParticle.cc

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//
// ----------------------------------------------------------------------
//      GEANT 4 class implementation file
//
//      History: first implementation, M.Asai Jul 07, 2004
// ----------------------------------------------------------------------
//  New impelemenataion as an utility class  H.Kurashige, 14 July 2004
// ----------------------------------------------------------------
 
#include "G4UnknownParticle.hh"
 
#include "G4ParticleTable.hh"
#include "G4String.hh"
#include "G4SystemOfUnits.hh"
 
G4UnknownParticle* G4UnknownParticle::theInstance = nullptr;
 
G4UnknownParticle* G4UnknownParticle::Definition()
{
  if (theInstance != nullptr) return theInstance;
 
  const G4String name = "unknown";
  // search in particle table]
  G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
  if (anInstance == nullptr) {
    // create particle
    //
    //    Arguments for constructor are as follows
    //               name             mass          width         charge
    //             2*spin           parity  C-conjugation
    //          2*Isospin       2*Isospin3       G-parity
    //               type    lepton number  baryon number   PDG encoding
    //             stable         lifetime    decay table
    //             shortlived      subType    anti_encoding
    // clang-format off
   anInstance = new G4ParticleDefinition(
             name,         0.0*MeV,       0.0*MeV,         0.0, 
            0,               0,             0,          
            0,               0,             0,             
       "geantino",               0,             0,           0,
         true,            -1.0,          nullptr,
        false,      "geantino",            0
        );
    // clang-format on
  }
  theInstance = static_cast<G4UnknownParticle*>(anInstance);
  return theInstance;
}
 
G4UnknownParticle* G4UnknownParticle::UnknownParticleDefinition()
{
  return Definition();
}
 
G4UnknownParticle* G4UnknownParticle::UnknownParticle()
{
  return Definition();
}