EvtGen 2.2.0
Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons.
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EvtRareLbToLllFFlQCD.hh
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1
2/***********************************************************************
3* Copyright 1998-2022 CERN for the benefit of the EvtGen authors *
4* *
5* This file is part of EvtGen. *
6* *
7* EvtGen is free software: you can redistribute it and/or modify *
8* it under the terms of the GNU General Public License as published by *
9* the Free Software Foundation, either version 3 of the License, or *
10* (at your option) any later version. *
11* *
12* EvtGen is distributed in the hope that it will be useful, *
13* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15* GNU General Public License for more details. *
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17* You should have received a copy of the GNU General Public License *
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20
21#ifndef EVTRARELBTOLLLFFLQCD_HH
22#define EVTRARELBTOLLLFFLQCD_HH 1
23
24// Include files
25
33
36
38
39#include <map>
40#include <string>
41
43 public:
46
47 void init() override;
48
49 void getFF( const EvtParticle& parent, const EvtParticle& lambda,
50 EvtRareLbToLllFFBase::FormFactors& FF ) const override;
51
52 private:
53 double formFactorParametrization( const double q2, const double a0,
54 const double a1, const double pole ) const;
55 double zvar( const double q2 ) const;
56
57 double m_fconsts[3][3];
58 double m_gconsts[3][3];
59 double m_hconsts[3][3];
60 double m_htildaconsts[3][3];
61
62 double m_t0;
63 double m_tplus;
64};
65
66#endif // EVTRARELBTOLLLFF_HH
double lambda(double q, double m1, double m2)
Definition EvtFlatQ2.cpp:30
const double a1
void getFF(const EvtParticle &parent, const EvtParticle &lambda, EvtRareLbToLllFFBase::FormFactors &FF) const override
double formFactorParametrization(const double q2, const double a0, const double a1, const double pole) const
double zvar(const double q2) const
EvtRareLbToLllFFlQCD()=default
Standard constructor.