Gabriele Cosmo
96 lines
3.9 KiB
C++
96 lines
3.9 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4Positron.cc,v 1.13 2007/03/15 06:53:58 kurasige Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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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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// History: first implementation, based on object model of
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// 4th April 1996, G.Cosmo
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// **********************************************************************
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// New impelemenataion as an utility class M.Asai, 26 July 2004
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// ----------------------------------------------------------------------
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#include "G4Positron.hh"
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#include "G4ParticleTable.hh"
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// ######################################################################
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// ### POSITRON ###
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// ######################################################################
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G4Positron* G4Positron::theInstance = 0;
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G4Positron* G4Positron::Definition()
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{
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if (theInstance !=0) return theInstance;
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const G4String name = "e+";
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// search in particle table]
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G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
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G4ParticleDefinition* anInstance = pTable->FindParticle(name);
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if (anInstance ==0)
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{
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// create particle
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//
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// Arguments for constructor are as follows
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// name mass width charge
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// 2*spin parity C-conjugation
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// 2*Isospin 2*Isospin3 G-parity
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// type lepton number baryon number PDG encoding
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// stable lifetime decay table
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// shortlived subType anti_encoding
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anInstance = new G4ParticleDefinition(
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name, 0.51099906*MeV, 0.0*MeV, +1.*eplus,
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1, 0, 0,
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0, 0, 0,
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"lepton", -1, 0, -11,
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true, -1.0, NULL,
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false, "e"
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);
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// Bohr Magnetron
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G4double muB = 0.5*eplus*hbar_Planck/(0.51099906*MeV/c_squared) ;
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anInstance->SetPDGMagneticMoment( muB * 1.0011596521859 );
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}
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theInstance = reinterpret_cast<G4Positron*>(anInstance);
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return theInstance;
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}
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G4Positron* G4Positron::PositronDefinition()
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{
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return Definition();
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}
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G4Positron* G4Positron::Positron()
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{
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return Definition();
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}
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