include/EvtGenModels/EvtRareLbToLllFFBase.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
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0020
0021 #ifndef EVTRARELBTOLLLFFBASE_HH
0022 #define EVTRARELBTOLLLFFBASE_HH 1
0023
0024 // Include files
0025
0026 /** @class
0027  *
0028  *
0029  *  @author Michal Kreps
0030  *  @date   2014-10-20
0031  */
0032
0033 #include "EvtGenBase/EvtIdSet.hh"
0034 #include "EvtGenBase/EvtParticle.hh"
0035
0036 #include <map>
0037 #include <string>
0038
0039 class EvtRareLbToLllFFBase {
0040   public:
0041     class FormFactors {
0042       public:
0043         FormFactors();
0044
0045         virtual ~FormFactors(){};
0046
0047         void areZero();
0048
0049         double F_[4];
0050         double G_[4];
0051         double FT_[4];
0052         double GT_[4];
0053     };
0054
0055     virtual void init() = 0;
0056
0057     virtual void getFF( EvtParticle* parent, EvtParticle* lambda,
0058                         EvtRareLbToLllFFBase::FormFactors& FF ) = 0;
0059
0060     bool isNatural( EvtParticle* lambda );
0061
0062     EvtRareLbToLllFFBase();
0063     virtual ~EvtRareLbToLllFFBase(){};
0064
0065   protected:
0066     double calculateVdotV( EvtParticle* parent, EvtParticle* lambda ) const;
0067     double calculateVdotV( EvtParticle*, EvtParticle*, double qsq ) const;
0068
0069     EvtIdSet natural_;
0070 };
0071
0072 #endif