1 //--------------------------------------------------------------------------
4 // This software is part of the EvtGen package developed jointly
5 // for the BaBar and CLEO collaborations. If you use all or part
6 // of it, please give an appropriate acknowledgement.
8 // Copyright Information: See EvtGen/COPYRIGHT
9 // Copyright (C) 1998 Caltech, UCSB
11 // Module: EvtGen/EvtSVVHelAmp.hh
15 // Modification history:
17 // DJL/RYD August 11, 1998 Module created
19 //------------------------------------------------------------------------
21 #ifndef EVTSVVHELAMP_HH
22 #define EVTSVVHELAMP_HH
24 #include "EvtGenBase/EvtDecayAmp.hh"
26 //Class to handle decays of the form SCALAR -> VECTOR VECTOR
27 //according the the helicity amplitudes specified by the
28 //user. There are 6 arguements, orders as amplitude then
29 //phase for H+, H0, and H-, in that order.
35 class EvtSVVHelAmp:public EvtDecayAmp {
40 virtual ~EvtSVVHelAmp();
42 std::string getName();
43 EvtDecayBase* clone();
48 void decay(EvtParticle *p);
50 static void SVVHel(EvtParticle *parent,EvtAmp& amp,EvtId n_v1,EvtId n_v2,
51 const EvtComplex& hp, const EvtComplex& h0,
52 const EvtComplex& hm);
54 std::string getParamName(int i);
55 std::string getParamDefault(int i);