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1 #ifndef ALITRDCALPIDLQ_H
2 #define ALITRDCALPIDLQ_H
3
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 //                                                                        //
11 // PID distributions for the LQ method                                    //
12 //                                                                        //
13 // Author:                                                                //
14 // Alex Bercuci <A.Bercuci@gsi.de>                                        //
15 //                                                                        //          
16 ////////////////////////////////////////////////////////////////////////////
17
18 #include "AliTRDCalPID.h"
19
20 class AliTRDCalPIDLQ : public AliTRDCalPID
21 {
22
23  public:
24
25   enum {
26     kNLength = 4
27   };
28         
29   AliTRDCalPIDLQ();
30   AliTRDCalPIDLQ(const Text_t *name, const Text_t *title);
31   virtual        ~AliTRDCalPIDLQ();
32
33   Bool_t          LoadReferences(Char_t* refFile);
34   TObject*        GetModel(Int_t ip, Int_t iType, Int_t iPlane) const;
35   static Double_t GetLength(Int_t il) { return (il<0 || il>=kNLength) ? -1. : fgTrackSegLength[il]; }
36          Double_t GetProbability(Int_t spec, Float_t mom, Float_t *dedx
37                                , Float_t length, Int_t plane) const;
38
39  protected:
40
41   static Float_t  fgTrackSegLength[kNLength]; // Track segment lengths
42
43  private:
44
45   AliTRDCalPIDLQ(const AliTRDCalPIDLQ& pd);
46   AliTRDCalPIDLQ&   operator=(const AliTRDCalPIDLQ &c);
47
48   void     Init();
49   Int_t    GetModelID(Int_t mom, Int_t spec, Int_t ii) const;
50
51   ClassDef(AliTRDCalPIDLQ, 2)                 // LQ PID reference manager
52
53 };
54 #endif
55