1 #ifndef ALIGENPHOSLIB_H
2 #define ALIGENPHOSLIB_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
15 enum constants{kPion, kPi0Flat, kKaon, kEta, kEtaFlat,kOmega, kEtaPrime, kPhi, kBaryon};
17 static Double_t PtPion(Double_t *px, Double_t *dummy);
18 static Double_t PtScal(Double_t pt, Int_t np);
19 static Double_t YPion( Double_t *py, Double_t *dummy);
20 static Int_t IpPion(TRandom* ran);
22 // pi0 Flat Distribution
23 static Double_t PtPi0Flat(Double_t *px, Double_t *dummy);
24 static Double_t YPi0Flat( Double_t *py, Double_t *dummy);
25 static Int_t IpPi0Flat(TRandom* ran);
28 static Double_t PtKaon(Double_t *px, Double_t *dummy);
29 static Double_t YKaon( Double_t *py, Double_t *dummy);
30 static Int_t IpKaon(TRandom* ran);
33 static Double_t PtEta(Double_t *px, Double_t *dummy);
34 static Double_t YEta( Double_t *py, Double_t *dummy);
35 static Int_t IpEta(TRandom *ran);
37 // etas Flat Distribution
38 static Double_t PtEtaFlat(Double_t *px, Double_t *dummy);
39 static Double_t YEtaFlat( Double_t *py, Double_t *dummy);
40 static Int_t IpEtaFlat(TRandom *ran);
43 static Double_t PtOmega(Double_t *px, Double_t *dummy);
44 static Double_t YOmega( Double_t *py, Double_t *dummy);
45 static Int_t IpOmega(TRandom *ran);
48 static Double_t PtEtaprime(Double_t *px, Double_t *dummy);
49 static Double_t YEtaprime( Double_t *py, Double_t *dummy);
50 static Int_t IpEtaprime(TRandom* ran);
53 static Double_t PtPhi(Double_t *px, Double_t *dummy);
54 static Double_t YPhi( Double_t *py, Double_t *dummy);
55 static Int_t IpPhi(TRandom* ran);
58 static Double_t PtBaryon(Double_t *px, Double_t *dummy);
59 static Double_t YBaryon( Double_t *py, Double_t *dummy);
60 static Int_t IpBaryon(TRandom *ran);
62 GenFunc GetPt(Int_t param, const char* tname=0) const;
63 GenFunc GetY (Int_t param, const char* tname=0) const;
64 GenFuncIp GetIp(Int_t param, const char* tname=0) const;
65 ClassDef(AliGenPHOSlib,0) // Library providing y and pT parameterisations