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New class used for primary vertex finding (AliITSVertexerTracks)
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1#ifndef ALIGENMUONLIB_H
2#define ALIGENMUONLIB_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7
8// Library class for particle pt and y distributions used for
9// muon spectrometer simulations.
10// To be used with AliGenParam.
11//
12// andreas.morsch@cern.ch
13
14#include "AliGenLib.h"
15
16class AliGenMUONlib :
17 public AliGenLib
18{
19 public:
20 enum constants{kPhi, kOmega, kEta, kJpsi, kUpsilon,
21 kCharm, kBeauty, kPion, kKaon};
22
23
24// pions
25 static Double_t PtPion(Double_t *px, Double_t *dummy);
26 static Double_t PtScal(Double_t pt, Int_t np);
27 static Double_t YPion( Double_t *py, Double_t *dummy);
28 static Int_t IpPion(TRandom *ran);
29// kaons
30 static Double_t PtKaon(Double_t *px, Double_t *dummy);
31 static Double_t YKaon( Double_t *py, Double_t *dummy);
32 static Int_t IpKaon(TRandom *ran);
33// Phi
34 static Double_t PtPhi( Double_t *px, Double_t *dummy);
35 static Double_t YPhi( Double_t *px, Double_t *dummy);
36 static Int_t IpPhi(TRandom *ran);
37// Omega
38 static Double_t PtOmega( Double_t *px, Double_t *dummy);
39 static Double_t YOmega( Double_t *px, Double_t *dummy);
40 static Int_t IpOmega(TRandom *ran);
41// Eta
42 static Double_t PtEta( Double_t *px, Double_t *dummy);
43 static Double_t YEta( Double_t *px, Double_t *dummy);
44 static Int_t IpEta(TRandom *ran);
45// J/Psi
46 static Double_t PtJpsi( Double_t *px, Double_t *dummy);
47 static Double_t YJpsi(Double_t *py, Double_t *dummy);
48 static Double_t PtJpsiPbPb( Double_t *px, Double_t *dummy);
49 static Double_t YJpsiPbPb(Double_t *py, Double_t *dummy);
50 static Int_t IpJpsi(TRandom *ran);
51// Upsilon
52 static Double_t PtUpsilon( Double_t *px, Double_t *dummy );
53 static Double_t YUpsilon(Double_t *py, Double_t *dummy);
54 static Double_t PtUpsilonPbPb( Double_t *px, Double_t *dummy );
55 static Double_t YUpsilonPbPb(Double_t *py, Double_t *dummy);
56 static Int_t IpUpsilon(TRandom *ran);
57//
58// Charm
59 static Double_t PtCharm( Double_t *px, Double_t *dummy );
60 static Double_t YCharm(Double_t *py, Double_t *dummy);
61 static Int_t IpCharm(TRandom *ran);
62//
63// Beauty
64 static Double_t PtBeauty( Double_t *px, Double_t *dummy );
65 static Double_t YBeauty(Double_t *py, Double_t *dummy);
66 static Int_t IpBeauty(TRandom *ran);
67//
68 GenFunc GetPt(Int_t param, const char* tname=0) const;
69 GenFunc GetY (Int_t param, const char* tname=0) const;
70 GenFuncIp GetIp(Int_t param, const char* tname=0) const;
71 private:
72
73 static Float_t Interpolate(Float_t x, Float_t* y, Float_t x0,
74 Float_t dx,
75 Int_t n, Int_t no);
76
77 ClassDef(AliGenMUONlib,0) // Library providing y and pT parameterisations
78};
79#endif
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