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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EvtGenKine.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 EVTGENKINE_HH
22#define EVTGENKINE_HH
23
24class EvtVector4R;
25class EvtParticle;
26
28 public:
29 static double PhaseSpace( int ndaug, double mass[30], EvtVector4R p4[30],
30 double mp );
31
32 static double PhaseSpacePole( double M, double m1, double m2, double m3,
33 double a, EvtVector4R p4[10] );
34
35 /*
36 * Function which takes two invariant masses squared in 3-body decay and
37 * parent after makeDaughters() and generateMassTree() and
38 * calculates/generates momenta of daughters and sets those.
39 */
40 static void ThreeBodyKine( const double m12Sq, const double m23Sq,
41 EvtParticle* p );
42};
43
44#endif
static double PhaseSpacePole(double M, double m1, double m2, double m3, double a, EvtVector4R p4[10])
static double PhaseSpace(int ndaug, double mass[30], EvtVector4R p4[30], double mp)
static void ThreeBodyKine(const double m12Sq, const double m23Sq, EvtParticle *p)