ITS/AliITSVertexerIons.h

   1 #ifndef ALIITSVERTEXERIONS_H
   2 #define ALIITSVERTEXERIONS_H
   3
   4 #include <AliITSVertexer.h>
   5
   6 //////////////////////////////////////////////////////////////////////
   7 // AliITSVertexerIons  is a class for full 3D primary vertex        //
   8 // finding optimized for Ion-Ion interactions                       //
   9 //                                                                  //
  10 //                                                                  //
  11 //                                                                  //
  12 //                                                                  //
  13 // Written by Giuseppe Lo Re and Francesco Riggi                    //
  14 // Giuseppe.Lore@ct.infn.it                                         //
  15 // Franco.Riggi@ct.infn.it                                          //
  16 //                                                                  //
  17 // Release date: Mar 2004                                           //
  18 //                                                                  //
  19 //                                                                  //
  20 //////////////////////////////////////////////////////////////////////
  21
  22
  23 class TH1F;
  24
  25 class AliITSVertexerIons : public AliITSVertexer {
  26
  27  public:
  28   AliITSVertexerIons();
  29   virtual ~AliITSVertexerIons(); // destructor
  30   virtual AliESDVertex* FindVertexForCurrentEvent(TTree *itsClusterTree);
  31   virtual void PhiFunc(Double_t &x,Double_t &y,Double_t &phi);
  32   virtual void PrintStatus() const;
  33   Int_t GetNpThreshold() const {return fNpThreshold;}
  34   void SetNpThreshold(Int_t t = 500){fNpThreshold = t;}
  35   Double_t GetMaxDeltaPhi() const {return fMaxDeltaPhi;}
  36   void SetMaxDeltaPhi(Double_t dphi=0.45) {fMaxDeltaPhi=dphi;}
  37   Double_t GetMaxDeltaZ() const {return fMaxDeltaPhi;}
  38   void SetMaxDeltaZ(Double_t dz=0.15) {fMaxDeltaZ=dz;}
  39   Double_t FindMaxAround(Double_t point, TH1F *h, Double_t distance);
  40
  41  protected:
  42
  43   Int_t fNpThreshold;      // minimum number of rec points for vertexing
  44   Double_t fMaxDeltaPhi;   // Maximum phi difference for rec points correlation
  45   Double_t fMaxDeltaZ;     // Maximum z difference for rec points correlation
  46   AliITSVertexerIons(const AliITSVertexerIons &source); // copy constructor (NO copy allowed: the constructor is protected to avoid misuse)
  47   AliITSVertexerIons& operator=(const AliITSVertexerIons &source); // assignment operator (NO assignment allowed)
  48
  49   ClassDef(AliITSVertexerIons,5);
  50 };
  51
  52 #endif