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0ca57c2f | 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: EvtBcVMuNu.cc | |
12 | // | |
13 | // Description: Routine to implement semileptonic B->psi lnu decays | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // AVL July 6, 2012 Module created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | // | |
21 | #include "EvtGenBase/EvtPatches.hh" | |
22 | #include <stdlib.h> | |
23 | #include "EvtGenBase/EvtParticle.hh" | |
24 | #include "EvtGenBase/EvtGenKine.hh" | |
25 | #include "EvtGenBase/EvtPDL.hh" | |
26 | #include "EvtGenBase/EvtReport.hh" | |
27 | #include "EvtGenBase/EvtSemiLeptonicVectorAmp.hh" | |
28 | #include <string> | |
29 | #include <iostream> | |
30 | ||
31 | #include "EvtGenModels/EvtBcVMuNu.hh" | |
32 | #include "EvtGenModels/EvtBCVFF.hh" | |
33 | ||
34 | using namespace std; | |
35 | ||
36 | EvtBcVMuNu::~EvtBcVMuNu() { | |
37 | // cout<<"EvtBcVMuNu::destructor getProbMax(-1) = "<<getProbMax(-1)<<endl; | |
38 | } | |
39 | ||
40 | std::string EvtBcVMuNu::getName(){ | |
41 | return "BC_VMN"; | |
42 | } | |
43 | ||
44 | ||
45 | EvtDecayBase* EvtBcVMuNu::clone(){ | |
46 | // cout<<" === EvtBcVMuNu::clone() ============"<<endl; | |
47 | return new EvtBcVMuNu; | |
48 | ||
49 | } | |
50 | ||
51 | void EvtBcVMuNu::decay( EvtParticle *p ){ | |
52 | // cout<<" === EvtBcVMuNu::decay() ============"<<endl; | |
53 | ||
54 | p->initializePhaseSpace(getNDaug(),getDaugs()); | |
55 | calcamp->CalcAmp(p,_amp2,ffmodel); | |
56 | // cout<<"EvtBcVMuNu::decay() getProbMax(-1) = "<<getProbMax(-1)<<endl; | |
57 | } | |
58 | ||
59 | ||
60 | void EvtBcVMuNu::init(){ | |
61 | // cout<<" === EvtBcVMuNu::init() ============"<<endl; | |
62 | ||
63 | ||
64 | checkNArg(1); | |
65 | checkNDaug(3); | |
66 | ||
67 | //We expect the parent to be a scalar | |
68 | //and the daughters to be X lepton neutrino | |
69 | ||
70 | checkSpinParent(EvtSpinType::SCALAR); | |
71 | ||
72 | checkSpinDaughter(0,EvtSpinType::VECTOR); | |
73 | checkSpinDaughter(1,EvtSpinType::DIRAC); | |
74 | checkSpinDaughter(2,EvtSpinType::NEUTRINO); | |
75 | ||
76 | idVector = getDaug(0).getId(); | |
77 | whichfit = int(getArg(0)+0.1); | |
78 | cout<<"EvtBcVMuNu: whichfit ="<<whichfit<<" idVector="<<idVector<<endl; | |
79 | ffmodel = new EvtBCVFF(idVector,whichfit); | |
80 | ||
81 | calcamp = new EvtSemiLeptonicVectorAmp; | |
82 | ||
83 | } | |
84 | ||
85 | void EvtBcVMuNu::initProbMax() { | |
86 | // cout<<" === EvtBcVMuNu::initProbMax() ============"<<endl; | |
87 | if(whichfit==0) setProbMax(1700.); | |
88 | else if(idVector == EvtPDL::getId("J/psi").getId() && whichfit == 1) setProbMax(40000.); | |
89 | else if(idVector == EvtPDL::getId("J/psi").getId() && whichfit == 2) setProbMax(15000.); | |
90 | else if(idVector == EvtPDL::getId("psi(2S)").getId() && whichfit == 1) setProbMax(700.); | |
91 | else if(idVector == EvtPDL::getId("psi(2S)").getId() && whichfit == 2) setProbMax(300.); | |
92 | else { | |
93 | cout<<"EvtBcVMuNu: Not realized yet"<<endl; | |
94 | ::abort(); | |
95 | }; | |
96 | }; | |
97 |