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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) 2000 Caltech, UCSB | |
10 | // | |
11 | // Module: EvtGen/EvtCGCoefSingle.hh | |
12 | // | |
13 | // Description:Evaluation of Clebsch-Gordon coef for a fixed j1 and j2. | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // RYD August 12, 2000 Module created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | ||
21 | #ifndef EVTCGCOEFSINGLE_HH | |
22 | #define EVTCGCOEFSINGLE_HH | |
23 | ||
24 | #include <vector> | |
25 | ||
26 | ||
27 | class EvtCGCoefSingle{ | |
28 | ||
29 | public: | |
30 | ||
31 | EvtCGCoefSingle(int j1, int j2) {init(j1,j2);} | |
32 | ~EvtCGCoefSingle(); | |
33 | ||
34 | ||
35 | double coef(int J,int M,int j1,int j2,int m1,int m2); | |
36 | ||
37 | private: | |
38 | ||
39 | void init(int j1,int j2); | |
40 | double& cg(int J,int M, int m1, int m2); | |
41 | ||
42 | int _j1; | |
43 | int _j2; | |
44 | ||
45 | int _Jmax; | |
46 | int _Jmin; | |
47 | ||
48 | std::vector<std::vector<std::vector<double> > > _table; | |
49 | ||
50 | }; | |
51 | ||
52 | #endif | |
53 | ||
54 |