include/EvtGenBase/EvtFlatAmp.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
0004 *                                                                      *
0005 * This file is part of EvtGen.                                         *
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0020
0021 #ifndef EVT_FLAT_AMP_HH
0022 #define EVT_FLAT_AMP_HH
0023
0024 #include "EvtGenBase/EvtAmplitude.hh"
0025
0026 // Flat amplitude
0027
0028 template <class T>
0029 class EvtFlatAmp : public EvtAmplitude<T> {
0030   public:
0031     EvtFlatAmp() {}
0032     EvtFlatAmp( const EvtFlatAmp<T>& other ) : EvtAmplitude<T>( other ) {}
0033     virtual ~EvtFlatAmp() {}
0034
0035     EvtAmplitude<T>* clone() const override
0036     {
0037         return new EvtFlatAmp<T>( *this );
0038     }
0039     EvtComplex amplitude( const T& ) const override
0040     {
0041         return EvtComplex( 1., 0. );
0042     }
0043 };
0044
0045 #endif