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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EvtbTosllMSFF.hh
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1
2/***********************************************************************
3* Copyright 1998-2020 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. *
16* *
17* You should have received a copy of the GNU General Public License *
18* along with EvtGen. If not, see <https://www.gnu.org/licenses/>. *
19***********************************************************************/
20
21#ifndef EVTBTOSLLMSFF_HH
22#define EVTBTOSLLMSFF_HH
23
25
26class EvtId;
27
28// Description: Form factors for B^0_d -> K^* l^+ l^- transition according
29// to the paper: D.Melikhov, B.Stech, PRD62, 014006 (2000).
30// N.Nikitin (nnikit@mail.cern.ch) March 13, 2008 Module created
31// N.Nikitin (nnikit@mail.cern.ch) March 27, 2008 add \bar B -> \bar (K,K^*) transition ff
32// N.Nikitin (nnikit@mail.cern.ch) April 26, 2008 add \bar Bs -> phi transition ff
33// N.Nikitin (nnikit@mail.cern.ch) April 26, 2008 add \bar Bs -> K* transition ff
34// N.Nikitin (nnikit@mail.cern.ch) April 27, 2008 add \bar B -> \bar rho transition ff
35// N.Nikitin (nnikit@mail.cern.ch) Nvmbr 04, 2011 add \bar B -> omega transition ff
36// N.Nikitin (nnikit@mail.cern.ch) Dec 16, 2011 add \bar B -> \bar K_1(1270) transition ff (from H.Hatanaka and Kwei-Chou Yang, PRD78, 074007 (2008))
37// N.Nikitin (nnikit@mail.cern.ch) Dec 16, 2011 add \bar B -> \bar K_1(1400) transition ff (from H.Hatanaka and Kwei-Chou Yang, PRD78, 074007 (2008))
38// N.Nikitin (nnikit@mail.cern.ch) May 11, 2012 add \bar Bs -> f_0(980) transition ff with NLO corrections from Table II (see P.Colangelo et al., PRD81, 074001 (2010))
39
41 public:
43
44 double equation9_10( double ff0, double M2, double q2, double sigma1,
45 double sigma2, int eq_num );
46
47 void getScalarFF( EvtId parent, EvtId daught, double t, double& fp,
48 double& f0, double& ft ) override;
49
50 void getVectorFF( EvtId parent, EvtId daught, double t, double& a1,
51 double& a2, double& a0, double& v, double& t1, double& t2,
52 double& t3 ) override;
53
54 double getQuarkMass( int i ) override;
55
56 private:
57};
58
59#endif
const double a2
const double a1
Definition EvtId.hh:27
void getScalarFF(EvtId parent, EvtId daught, double t, double &fp, double &f0, double &ft) override
void getVectorFF(EvtId parent, EvtId daught, double t, double &a1, double &a2, double &a0, double &v, double &t1, double &t2, double &t3) override
double getQuarkMass(int i) override
double equation9_10(double ff0, double M2, double q2, double sigma1, double sigma2, int eq_num)