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da0e9ce3 | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
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. | |
7 | // | |
8 | // Copyright Information: See EvtGen/COPYRIGHT | |
9 | // Copyright (C) 1998 Caltech, UCSB | |
10 | // | |
11 | // Module: EvtGen/EvtCPUtil.hh | |
12 | // | |
13 | // Description:Class to hold CP physics utilities. | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // RYD March 24, 1998 Module created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | ||
21 | #ifndef EVTCPUTIL_HH | |
22 | #define EVTCPUTIL_HH | |
23 | ||
24 | #include "EvtGenBase/EvtComplex.hh" | |
25 | #include "EvtGenBase/EvtPatches.hh" | |
26 | class EvtParticle; | |
27 | class EvtId; | |
28 | ||
29 | class EvtCPUtil{ | |
30 | ||
31 | public: | |
32 | ||
33 | static void fractB0CP(EvtComplex Af, EvtComplex Abarf, | |
34 | double deltam, double beta, double &fract); | |
35 | ||
36 | static void fractB0nonCP(EvtComplex Af, EvtComplex Abarf, | |
37 | EvtComplex Afbar, EvtComplex Abarfbar, | |
38 | double deltam, double beta, int flip, | |
39 | double &fract); | |
40 | ||
41 | static void OtherB(EvtParticle *p, double &t, EvtId &otherb); | |
42 | ||
43 | static void OtherB(EvtParticle *p, double &t, EvtId &otherb, double probB0); | |
44 | ||
45 | //id is the produced particle | |
46 | //t returns the lifetime of the particle | |
47 | //and mix will be 1 if it mixed otherwise 0 | |
48 | static void incoherentMix(const EvtId id, double &t, int &mix); | |
49 | ||
50 | ||
51 | ||
52 | }; | |
53 | ||
54 | ||
55 | #endif | |
56 |