Line data Source code
1 : #ifndef ALIGENPHOSLIB_H
2 : #define ALIGENPHOSLIB_H
3 : #include "AliGenLib.h"
4 : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 : * See cxx source for full Copyright notice */
6 :
7 : /* $Id$ */
8 :
9 : //======================================================================
10 : // AliGenPHOSlib class contains parameterizations of the
11 : // pion, kaon, eta, omega, etaprime, phi and baryon (proton,
12 : // antiproton, neutron and anti-neutron) particles for the
13 : // study of the neutral background in PHOS detector.
14 : // Additional particle species simulation options has been added:
15 : // Charged Pion, Charged Kaons, KLong Proton, Anti-Proton, Neutron,
16 : // Anti-Neutron --> Changes made by Gustavo Conesa in November 2004
17 : //======================================================================
18 :
19 : class TRandom;
20 :
21 0 : class AliGenPHOSlib :
22 : public AliGenLib
23 : {
24 : public:
25 : enum constants{kPion, kChargedPion, kPi0, kPi0Flat, kKaon, kChargedKaon, kKaon0L,
26 : kEta, kEtaFlat,kOmega, kOmegaFlat, kEtaPrime, kPhi,
27 : kBaryon, kProton, kAProton, kNeutron, kANeutron};
28 : GenFunc GetPt(Int_t param, const char* tname=0) const;
29 : GenFunc GetY (Int_t param, const char* tname=0) const;
30 : GenFuncIp GetIp(Int_t param, const char* tname=0) const;
31 : private:
32 : // pions
33 : static Double_t PtPion(const Double_t *px, const Double_t *dummy);
34 : static Double_t PtScal(Double_t pt, Int_t np);
35 : static Double_t YPion( const Double_t *py, const Double_t *dummy);
36 : static Int_t IpPion(TRandom* ran);
37 : static Int_t IpChargedPion(TRandom* ran);
38 : // pi0 Distribution
39 : static Double_t PtPi0(const Double_t *px, const Double_t *dummy);
40 : // pi0 Flat Distribution
41 : static Double_t PtPi0Flat(const Double_t *px, const Double_t *dummy);
42 : static Double_t YPi0Flat( const Double_t *py, const Double_t *dummy);
43 : static Int_t IpPi0Flat(TRandom* ran);
44 :
45 : // kaons
46 : static Double_t PtKaon(const Double_t *px, const Double_t *dummy);
47 : static Double_t YKaon( const Double_t *py, const Double_t *dummy);
48 : static Int_t IpKaon(TRandom* ran);
49 : static Int_t IpChargedKaon(TRandom* ran);
50 : static Int_t IpKaon0L(TRandom* ran);
51 : // etas
52 : static Double_t PtEta(const Double_t *px, const Double_t *dummy);
53 : static Double_t YEta( const Double_t *py, const Double_t *dummy);
54 : static Int_t IpEta(TRandom *ran);
55 :
56 : // etas Flat Distribution
57 : static Double_t PtEtaFlat(const Double_t *px, const Double_t *dummy);
58 : static Double_t YEtaFlat( const Double_t *py, const Double_t *dummy);
59 : static Int_t IpEtaFlat(TRandom *ran);
60 :
61 : // omegas
62 : static Double_t PtOmega(const Double_t *px, const Double_t *dummy);
63 : static Double_t YOmega( const Double_t *py, const Double_t *dummy);
64 : static Int_t IpOmega(TRandom *ran);
65 :
66 : // omegas Flat Distribution
67 : static Double_t PtOmegaFlat(const Double_t *px, const Double_t *dummy);
68 : static Double_t YOmegaFlat( const Double_t *py, const Double_t *dummy);
69 : static Int_t IpOmegaFlat(TRandom *ran);
70 :
71 : // etaprime
72 : static Double_t PtEtaprime(const Double_t *px, const Double_t *dummy);
73 : static Double_t YEtaprime( const Double_t *py, const Double_t *dummy);
74 : static Int_t IpEtaprime(TRandom* ran);
75 :
76 : // phis
77 : static Double_t PtPhi(const Double_t *px, const Double_t *dummy);
78 : static Double_t YPhi( const Double_t *py, const Double_t *dummy);
79 : static Int_t IpPhi(TRandom* ran);
80 :
81 : // baryons
82 : static Double_t PtBaryon(const Double_t *px, const Double_t *dummy);
83 : static Double_t YBaryon( const Double_t *py, const Double_t *dummy);
84 : static Int_t IpBaryon(TRandom *ran);
85 : static Int_t IpProton(TRandom *ran);
86 : static Int_t IpAProton(TRandom *ran);
87 : static Int_t IpNeutron(TRandom *ran);
88 : static Int_t IpANeutron(TRandom *ran);
89 :
90 6 : ClassDef(AliGenPHOSlib,0) // Library providing y and pT parameterisations
91 : };
92 : #endif
93 :
94 :
95 :
96 :
97 :
98 :
99 :
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