PWG2/RESONANCES/AliRsnDaughterCutPair.h

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  * See cxx source for full Copyright notice                               *
   4  **************************************************************************/
   5
   6 //-------------------------------------------------------------------------
   7 //                      Class AliRsnDaughterCutPair
   8 //
   9 //           Implementation of various cut which can be applied
  10 //           during resonance analysis.
  11 //           First is the virtual base class.
  12 //
  13 // author: A. Pulvirenti             (email: alberto.pulvirenti@ct.infn.it)
  14 //-------------------------------------------------------------------------
  15
  16 #ifndef ALIRSNDAUGHTERCUTPAIR_H
  17 #define ALIRSNDAUGHTERCUTPAIR_H
  18
  19 class AliRsnDaughter;
  20
  21 class AliRsnDaughterCutPair : public TObject
  22 {
  23 public:
  24                         AliRsnDaughterCutPair() {}
  25         virtual        ~AliRsnDaughterCutPair() {}
  26         virtual Bool_t  Pass(AliRsnDaughter *track1, AliRsnDaughter *track2) const;
  27 private:
  28         ClassDef(AliRsnDaughterCutPair,1)
  29 };
  30 //
  31 //-------------------------------------------------------------------------
  32 //
  33 class AliRsnDaughterCutPairPt : public AliRsnDaughterCutPair
  34 {
  35 public:
  36                                AliRsnDaughterCutPairPt(Double_t min, Double_t max) : fPtMin(min),fPtMax(max) {}
  37         virtual       ~AliRsnDaughterCutPairPt() {}
  38         virtual Bool_t Pass(AliRsnDaughter *track1, AliRsnDaughter *track2) const;
  39 protected:
  40         Double_t fPtMin; // smallest allowed Pt
  41         Double_t fPtMax; // largest allowed Pt
  42
  43         ClassDef(AliRsnDaughterCutPairPt,1)
  44 };
  45 //
  46 //-------------------------------------------------------------------------
  47 //
  48 class AliRsnDaughterCutPairArmenteros : public AliRsnDaughterCutPair
  49 {
  50 public:
  51                                AliRsnDaughterCutPairArmenteros(Double_t qMin, Double_t qMax, Double_t aMin, Double_t aMax)
  52                                 : fQtMin(qMin),fQtMax(qMax),fAlphaMin(aMin),fAlphaMax(aMax) {}
  53         virtual       ~AliRsnDaughterCutPairArmenteros() {}
  54         virtual Bool_t Pass(AliRsnDaughter *track1, AliRsnDaughter *track2) const;
  55                 void   Compute(AliRsnDaughter *track1, AliRsnDaughter *track2, Double_t &qt, Double_t &alpha) const;
  56 private:
  57         Double_t fQtMin;    // minimum Qt
  58         Double_t fQtMax;    // minimum Qt
  59         Double_t fAlphaMin; // minimum alpha
  60         Double_t fAlphaMax; // minimum alpha
  61
  62         ClassDef(AliRsnDaughterCutPairArmenteros,1)
  63 };
  64
  65 #endif