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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/EvtStringParticle.hh | |
12 | // | |
13 | // Description: EvtStringParticle particle is a class to keep the | |
14 | // collection of partons that are generated by jetset. | |
15 | // This is supposedly the _only_ use of this particle. | |
16 | // | |
17 | // Modification history: | |
18 | // | |
19 | // RYD Febuary 27, 1998 Module created | |
20 | // | |
21 | //------------------------------------------------------------------------ | |
22 | ||
23 | #ifndef EVTSTRINGPARTICLE_HH | |
24 | #define EVTSTRINGPARTICLE_HH | |
25 | ||
26 | #include "EvtGenBase/EvtParticle.hh" | |
27 | #include "EvtGenBase/EvtId.hh" | |
28 | ||
29 | class EvtStringParticle:public EvtParticle { | |
30 | ||
31 | public: | |
32 | ||
33 | EvtStringParticle(); | |
34 | virtual ~EvtStringParticle(); | |
35 | void init(EvtId id, const EvtVector4R& p4); | |
36 | void initPartons(int npartons,EvtVector4R* p4partons,EvtId* idpartons); | |
37 | int getNPartons(); | |
38 | EvtId getIdParton(int i); | |
39 | EvtVector4R getP4Parton(int i); | |
40 | EvtSpinDensity rotateToHelicityBasis() const; | |
41 | EvtSpinDensity rotateToHelicityBasis(double alpha, | |
42 | double beta, | |
43 | double gamma) const; | |
44 | ||
45 | private: | |
46 | ||
47 | int _npartons; | |
48 | ||
49 | EvtVector4R* _p4partons; | |
50 | EvtId* _idpartons; | |
51 | ||
52 | EvtStringParticle& operator=(const EvtStringParticle& d); | |
53 | ||
54 | }; | |
55 | #endif | |
56 |