G4Dineutron.cc

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// $Id: G4Dineutron.cc 69389 2013-05-02 15:54:09Z mkelsey $
//
// ------------------------------------------------------------
//      Bertini Cascade dineutron class implementation file
//
//      History: first implementation, inspired by G4Proton
//      17 Nov 2009:  Michael Kelsey
//      06 Apr 2010:  Do G4Ions initialization in ctor.
//      13 Apr 2010:  Per Kurashige, inherit from G4VShortLivedParticle.
//      06 May 2010:  Remove created particle from master table.
//      25 May 2012:  Add flags to suppress particle-table error message.
//      01 May 2013:  Remove G4ThreadLocal from static pointer.
// ----------------------------------------------------------------

#include "G4Dineutron.hh"

#include "globals.hh"
#include "G4ios.hh"
#include "G4PhysicalConstants.hh"
#include "G4SystemOfUnits.hh"
#include "G4ParticleTable.hh"

// ######################################################################
// ###                          DINEUTRON                             ###
// ######################################################################
G4Dineutron* G4Dineutron::theInstance = 0;

//    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
G4Dineutron::G4Dineutron()
  : G4VShortLivedParticle("dineutron",
                          2.*neutron_mass_c2, 0.0*MeV, 0,
                          2,       +1,       0,          
                          2,       -2,       0,             
                          "nucleus",        0,      +2, 0, /* ? 100000020 */
                          true,       0.,    NULL) {}


G4Dineutron* G4Dineutron::Definition() {
  if (0 == theInstance) {
    theInstance = new G4Dineutron;      // There can be only one

    G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
    G4bool tableReady = pTable->GetReadiness();
    pTable->SetReadiness(false);        // Suppress error message
    pTable->Remove(theInstance);        // Make invisible to GEANT4
    pTable->SetReadiness(tableReady);   // Set back 'ready to use' flag
  }

  return theInstance;
}

// Simple call-throughs
G4Dineutron* G4Dineutron::DineutronDefinition() { return Definition(); }
G4Dineutron* G4Dineutron::Dineutron()           { return Definition(); }