Updated to the new way AOD stores particles
[u/mrichter/AliRoot.git] / HBTAN / AliHBTLLWeights.h
CommitLineData
4fdf4eb3 1/* $Id$ */
2
3// This class introduces the weight's calculation
4// according to the Lednicky's algorithm.
5// The detailed description of the algorithm can be found
6// in comments to fortran code:
7// fsiw.f, fsiini.f
88cb7938 8
7f92929e 9#ifndef ALIHBTLLWEIGHTS_H
10#define ALIHBTLLWEIGHTS_H
11
dd82cadc 12#include "AliHBTWeights.h"
7f92929e 13
14class AliHBTPair;
dd82cadc 15class AliHBTLLWeights: public AliHBTWeights
88cb7938 16 {
17 public:
ae4a4473 18 AliHBTLLWeights();
88cb7938 19 virtual ~AliHBTLLWeights(){;}
20 static AliHBTLLWeights* Instance();
ae4a4473 21
dd82cadc 22 void Set();
88cb7938 23
24 Double_t GetWeight(const AliHBTPair* partpair); //get weight calculated by Lednicky's algorithm
25
26 void Init(); //put the initial values in fortran commons fsiini, led_bldata
27 void SetTest(Bool_t rtest = kTRUE);//Sets fTest member
4fdf4eb3 28
88cb7938 29 void SetColoumb(Bool_t col = kTRUE);//: (ICH in fortran code) Coulomb interaction between the two particles ON (OFF)
30 void SetQuantumStatistics(Bool_t qss = kTRUE);//IQS: quantum statistics for the two particles ON (OFF) //if non-identical particles automatically off
31 void SetStrongInterSwitch(Bool_t sis = kTRUE);//ISI: strong interaction between the two particles ON (OFF)
32 void SetColWithResidNuclSwitch(Bool_t crn = kTRUE);//I3C: Coulomb interaction with residual nucleus ON (OFF)
526c2bd5 33 void SetLambda(Double_t la){fOneMinusLambda=1.-la;} //lambda=haoticity
88cb7938 34 void SetApproxModel(Int_t ap);//sets Model of Approximation (NS in Fortran code)
35 void SetRandomPosition(Bool_t rp = kTRUE); //ON=kTRUE(OFF=kFALSE)
36 void SetR1dw(Double_t R); //spherical source model radii
37 void SetParticlesTypes(Int_t pid1, Int_t pid2); //set AliRoot particles types
38 void SetNucleusCharge(Double_t ch); // not used now (see comments in fortran code)
39 void SetNucleusMass(Double_t mass); // (see comments in fortran code)
526c2bd5 40
88cb7938 41 protected:
42
43 Bool_t fTest; //flag indicating if parameters listed below are to be calculated automatically (0)
44 //or
37e71815 45 Bool_t fColoumbSwitch; //switches on/off Coulumb effect
46 Bool_t fQuantStatSwitch; //switches on/off Quantum Statistics effect
88cb7938 47 Bool_t fStrongInterSwitch;//Switches strong interactions TRUE=ON
48 Bool_t fColWithResidNuclSwitch;//Switches couloumb interaction
49 //with residual nucleus TRUE=ON
50 Double_t fNuclMass; //mass of nucleus
51 Double_t fNuclCharge; //charge of nucleus
52
53 Bool_t fRandomPosition;//flag indicating if positions of particles shuold be randomized according to parameters below
54 Double_t fRadius; //radius used for randomizing particle vertex position
526c2bd5 55
56 Double_t fOneMinusLambda; //1 - intercept parameter
7f92929e 57
88cb7938 58 Int_t fApproximationModel; //approximation used to calculate Bethe-Salpeter amplitude see SetApproxModel for more comments
59
37e71815 60 Int_t fPID1; //Pdg Code of the first particle in the pair
61 Int_t fPID2; //Pdg Code of the second particle in the pair
88cb7938 62 Double_t fSigma; //constants for spherical source model in cm
63 static const Double_t fgkWcons; //constant for fm->GeV conversion 1/0.1973
64
65 static AliHBTLLWeights *fgLLWeights;// pointer to wrapper of Fortran Lednicky code
66
67 static Int_t GetPairCode(Int_t pid1,Int_t pid2);
68 static Int_t GetPairCode(const AliHBTPair* partpair);//calculate automatically internal code
69
70 private:
111e505b 71 AliHBTLLWeights(const AliHBTLLWeights &/*source*/);
72 AliHBTLLWeights & operator=(const AliHBTLLWeights& /*source*/);
73
88cb7938 74 ClassDef(AliHBTLLWeights,1)
7f92929e 75 };
76
77#endif