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0ca57c2f | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
4 | // This software is part of the EvtGen package. If you use all or part | |
5 | // of it, please give an appropriate acknowledgement. | |
6 | // | |
7 | // Copyright Information: See EvtGen/COPYRIGHT | |
8 | // | |
9 | // Module: EvtGenModels/EvtBcToNPi.hh | |
10 | // | |
11 | // Description: General decay model for Bc -> V + npi and Bc -> P + npi | |
12 | // | |
13 | // Modification history: | |
14 | // | |
15 | // A.Berezhnoy, A.Likhoded, A.Luchinsky April 2011 Module created | |
16 | // | |
17 | //------------------------------------------------------------------------ | |
18 | ||
19 | #ifndef EvtBcToNPi_HH | |
20 | #define EvtBcToNPi_HH | |
21 | ||
22 | #include "EvtGenBase/EvtParticle.hh" | |
23 | #include "EvtGenBase/EvtDecayAmp.hh" | |
24 | #include "EvtGenBase/EvtDecayBase.hh" | |
25 | #include "EvtGenBase/EvtComplex.hh" | |
26 | #include "EvtGenBase/EvtVector4R.hh" | |
27 | ||
28 | #include <string> | |
29 | ||
30 | class EvtBcToNPi: public EvtDecayAmp { | |
31 | ||
32 | public: | |
33 | ||
34 | EvtBcToNPi(bool printAuthorInfo = false); | |
35 | virtual ~EvtBcToNPi(); | |
36 | ||
37 | std::string getName(); | |
38 | ||
39 | EvtDecayBase* clone(); | |
40 | ||
41 | void initProbMax(); | |
42 | ||
43 | void init(); | |
44 | ||
45 | void decay(EvtParticle *p); | |
46 | ||
47 | protected: | |
48 | ||
49 | int nCall; | |
50 | double maxAmp2; | |
51 | ||
52 | // Bc form factors | |
53 | double _maxProb; | |
54 | double FA0_N, FA0_c1, FA0_c2; | |
55 | double FAm_N, FAm_c1, FAm_c2; | |
56 | double FAp_N, FAp_c1, FAp_c2; | |
57 | double FV_N, FV_c1, FV_c2; | |
58 | ||
59 | double Fp_N, Fp_c1, Fp_c2; | |
60 | double Fm_N, Fm_c1, Fm_c2; | |
61 | ||
62 | // W -> pi... form factors | |
63 | double _beta; | |
64 | double _mRho; | |
65 | double _gammaRho; | |
66 | double _mRhopr; | |
67 | double _gammaRhopr; | |
68 | double _mA1; | |
69 | double _gammaA1; | |
70 | ||
71 | double _ee(double M, double m1, double m2); | |
72 | double _pp(double M, double m1, double m2); | |
73 | EvtComplex Fpi( EvtVector4R q1, EvtVector4R q2); | |
74 | double pi3G(double m2,int dupD); | |
75 | ||
76 | private: | |
77 | ||
78 | void printAuthorInfo(); | |
79 | ||
80 | }; | |
81 | ||
82 | #endif | |
83 |