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File indexing completed on 2026-08-06 09:20:03

0001 
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
0004 *                                                                      *
0005 * This file is part of EvtGen.                                         *
0006 *                                                                      *
0007 * EvtGen is free software: you can redistribute it and/or modify       *
0008 * it under the terms of the GNU General Public License as published by *
0009 * the Free Software Foundation, either version 3 of the License, or    *
0010 * (at your option) any later version.                                  *
0011 *                                                                      *
0012 * EvtGen is distributed in the hope that it will be useful,            *
0013 * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
0014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
0015 * GNU General Public License for more details.                         *
0016 *                                                                      *
0017 * You should have received a copy of the GNU General Public License    *
0018 * along with EvtGen.  If not, see <https://www.gnu.org/licenses/>.     *
0019 ***********************************************************************/
0020 
0021 #ifndef EVTRARITASCHWINGERPARTICLE_HH
0022 #define EVTRARITASCHWINGERPARTICLE_HH
0023 
0024 #include "EvtGenBase/EvtId.hh"
0025 #include "EvtGenBase/EvtParticle.hh"
0026 #include "EvtGenBase/EvtRaritaSchwinger.hh"
0027 
0028 class EvtVector4R;
0029 
0030 class EvtRaritaSchwingerParticle : public EvtParticle {
0031   public:
0032     EvtRaritaSchwingerParticle() = default;
0033     void init( EvtId id, const EvtVector4R& p4 ) override;
0034     void init( EvtId id, const EvtVector4R& p4, const EvtRaritaSchwinger&,
0035                const EvtRaritaSchwinger&, const EvtRaritaSchwinger&,
0036                const EvtRaritaSchwinger&, const EvtRaritaSchwinger&,
0037                const EvtRaritaSchwinger&, const EvtRaritaSchwinger&,
0038                const EvtRaritaSchwinger& );
0039     EvtRaritaSchwinger spRSParent( int ) const override;
0040     EvtRaritaSchwinger spRS( int ) const override;
0041     EvtSpinDensity rotateToHelicityBasis() const override;
0042     EvtSpinDensity rotateToHelicityBasis( double alpha, double beta,
0043                                           double gamma ) const override;
0044 
0045   private:
0046     EvtRaritaSchwinger _spinorRest[4];
0047     EvtRaritaSchwinger _spinor[4];
0048     EvtRaritaSchwingerParticle( const EvtRaritaSchwingerParticle& d );
0049     EvtRaritaSchwingerParticle& operator=( const EvtRaritaSchwingerParticle& d );
0050 };
0051 #endif