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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: EvtSLPole.cc | |
12 | // | |
13 | // Description: Routine to implement semileptonic decays according | |
14 | // to light cone sum rules | |
15 | // | |
16 | // Modification history: | |
17 | // | |
18 | // DJL April 23, 1998 Module created | |
19 | // | |
20 | //------------------------------------------------------------------------ | |
21 | // | |
22 | #include "EvtGenBase/EvtPatches.hh" | |
23 | #include <stdlib.h> | |
24 | #include "EvtGenBase/EvtParticle.hh" | |
25 | #include "EvtGenBase/EvtGenKine.hh" | |
26 | #include "EvtGenBase/EvtPDL.hh" | |
27 | #include "EvtGenBase/EvtReport.hh" | |
28 | #include "EvtGenModels/EvtSLPole.hh" | |
29 | #include "EvtGenModels/EvtSLPoleFF.hh" | |
30 | #include "EvtGenBase/EvtSemiLeptonicScalarAmp.hh" | |
31 | #include "EvtGenBase/EvtSemiLeptonicVectorAmp.hh" | |
32 | #include "EvtGenBase/EvtSemiLeptonicTensorAmp.hh" | |
33 | #include <string> | |
34 | ||
35 | EvtSLPole::~EvtSLPole() {} | |
36 | ||
37 | std::string EvtSLPole::getName(){ | |
38 | ||
39 | return "SLPOLE"; | |
40 | ||
41 | } | |
42 | ||
43 | ||
44 | EvtDecayBase* EvtSLPole::clone(){ | |
45 | ||
46 | return new EvtSLPole; | |
47 | ||
48 | } | |
49 | ||
50 | void EvtSLPole::decay( EvtParticle *p ){ | |
51 | ||
52 | p->initializePhaseSpace(getNDaug(),getDaugs(),_resetDaughterTree); | |
53 | calcamp->CalcAmp(p,_amp2,SLPoleffmodel); | |
54 | return; | |
55 | } | |
56 | ||
57 | void EvtSLPole::initProbMax(){ | |
58 | ||
59 | EvtId parnum,mesnum,lnum,nunum; | |
60 | ||
61 | parnum = getParentId(); | |
62 | mesnum = getDaug(0); | |
63 | lnum = getDaug(1); | |
64 | nunum = getDaug(2); | |
65 | ||
66 | double mymaxprob = calcamp->CalcMaxProb(parnum,mesnum, | |
67 | lnum,nunum,SLPoleffmodel); | |
68 | ||
69 | setProbMax(mymaxprob); | |
70 | ||
71 | } | |
72 | ||
73 | ||
74 | void EvtSLPole::init(){ | |
75 | ||
76 | checkNDaug(3); | |
77 | ||
78 | //We expect the parent to be a scalar | |
79 | //and the daughters to be X lepton neutrino | |
80 | ||
81 | checkSpinParent(EvtSpinType::SCALAR); | |
82 | checkSpinDaughter(1,EvtSpinType::DIRAC); | |
83 | checkSpinDaughter(2,EvtSpinType::NEUTRINO); | |
84 | ||
85 | EvtSpinType::spintype mesontype=EvtPDL::getSpinType(getDaug(0)); | |
86 | ||
87 | SLPoleffmodel = new EvtSLPoleFF(getNArg(),getArgs()); | |
88 | ||
89 | if ( mesontype==EvtSpinType::SCALAR ) { | |
90 | calcamp = new EvtSemiLeptonicScalarAmp; | |
91 | } | |
92 | if ( mesontype==EvtSpinType::VECTOR ) { | |
93 | calcamp = new EvtSemiLeptonicVectorAmp; | |
94 | } | |
95 | if ( mesontype==EvtSpinType::TENSOR ) { | |
96 | calcamp = new EvtSemiLeptonicTensorAmp; | |
97 | } | |
98 | ||
99 | _resetDaughterTree=false; | |
100 | if ( getArgStr(getNArg()-1) == "true") _resetDaughterTree=true; | |
101 | ||
102 | } | |
103 |