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1 // 2 // ******************************************************************** 3 // * License and Disclaimer * 4 // * * 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. * 10 // * * 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitation of liability. * 17 // * * 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************************************** 25 // 26 // ------------------------------------------------------------ 27 // GEANT 4 class header file 28 // 29 // History: first implementation, based on object model of 30 // 4-th April 1996, G.Cosmo 31 // **************************************************************** 32 // New implementation as a utility class M.Asai, 26 July 2004 33 // ---------------------------------------------------------------- 34 35 #ifndef G4PionZero_h 36 #define G4PionZero_h 1 37 38 #include "G4ParticleDefinition.hh" 39 40 class G4PionZero : public G4ParticleDefinition 41 { 42 public: 43 static G4PionZero* Definition(); 44 static G4PionZero* PionZeroDefinition(); 45 static G4PionZero* PionZero(); 46 47 private: 48 G4PionZero() {} 49 ~G4PionZero() override = default; 50 51 static G4PionZero* theInstance; 52 }; 53 54 #endif 55