PWG3/vertexingHF/AliAnalysisVertexingHF.h

   1 #ifndef ALIANALYSISVERTEXINGHF_H
   2 #define ALIANALYSISVERTEXINGHF_H
   3 /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 //-------------------------------------------------------------------------
   7 //                      Class AliAnalysisVertexingHF
   8 //            Reconstruction of heavy-flavour decay candidates
   9 //
  10 //  Origin: E.Bruna, G.E.Bruno, A.Dainese, F.Prino, R.Romita, X.M.Zhang
  11 //  Contact: andrea.dainese@pd.infn.it
  12 //-------------------------------------------------------------------------
  13
  14 #include <TNamed.h>
  15
  16 class AliESDVertex;
  17 class AliAODRecoDecayHF;
  18 class AliAODRecoDecayHF2Prong;
  19 class AliAODRecoDecayHF3Prong;
  20 class AliAODRecoDecayHF4Prong;
  21 class AliAODRecoCascadeHF;
  22 class AliAnalysisFilter;
  23 class AliESDtrack;
  24 class AliVEvent;
  25 class AliAODVertex;
  26
  27 //-----------------------------------------------------------------------------
  28 class AliAnalysisVertexingHF : public TNamed {
  29  public:
  30   //
  31   AliAnalysisVertexingHF();
  32   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  33   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  34   virtual ~AliAnalysisVertexingHF();
  35
  36   void FindCandidates(AliVEvent *event,
  37                       TClonesArray *aodVerticesHFTClArr,
  38                       TClonesArray *aodD0toKpiTClArr,
  39                       TClonesArray *aodJPSItoEleTClArr,
  40                       TClonesArray *aodCharm3ProngTClArr,
  41                       TClonesArray *aodCharm4ProngTClArr,
  42                       TClonesArray *aodDstarTClArr,
  43                       TClonesArray *aodLikeSign2ProngTClArr,
  44                       TClonesArray *aodLikeSign3ProngTClArr);
  45
  46   void PrintStatus() const;
  47   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  48   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  49   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  50   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  51   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  52   void Set3ProngOn() { f3Prong=kTRUE; }
  53   void Set3ProngOff() { f3Prong=kFALSE; }
  54   void Set4ProngOn() { f4Prong=kTRUE; }
  55   void Set4ProngOff() { f4Prong=kFALSE; }
  56   void SetDstarOn() { fDstar=kTRUE; }
  57   void SetDstarOff() { fDstar=kFALSE; }
  58   void SetLikeSignOn() { fLikeSign=kTRUE; }
  59   void SetLikeSignOff() { fLikeSign=kFALSE; }
  60   void SetMixEventOn() { fMixEvent=kTRUE; }
  61   void SetMixEventOff() { fMixEvent=kFALSE; }
  62   void SetInputAOD() { fInputAOD=kTRUE; }
  63   Bool_t GetD0toKpi() const { return fD0toKpi; }
  64   Bool_t GetJPSItoEle() const { return fJPSItoEle; }
  65   Bool_t Get3Prong() const { return f3Prong; }
  66   Bool_t Get4Prong() const { return f4Prong; }
  67   Bool_t GetDstar()  const { return fDstar; }
  68   Bool_t GetLikeSign() const { return fLikeSign; }
  69   Bool_t GetMixEvent() const { return fMixEvent; }
  70   Bool_t GetInputAOD() const { return fInputAOD; }
  71   Bool_t GetRecoPrimVtxSkippingTrks() const {return fRecoPrimVtxSkippingTrks;}
  72   Bool_t GetRmTrksFromPrimVtx() const {return fRmTrksFromPrimVtx;}
  73   void SetFindVertexForDstar(Bool_t vtx=kTRUE) { fFindVertexForDstar=vtx; }
  74   void SetRecoPrimVtxSkippingTrks()
  75     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  76   void UnsetRecoPrimVtxSkippingTrks()
  77     { fRecoPrimVtxSkippingTrks=kFALSE; fRmTrksFromPrimVtx=kFALSE;}
  78   void SetRmTrksFromPrimVtx()
  79     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  80   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
  81   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
  82   AliAnalysisFilter* GetTrackFilter() const { return fTrackFilter; }
  83   AliAnalysisFilter* GetTrackFilterSoftPi() const { return fTrackFilterSoftPi; }
  84   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  85                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  86                       Double_t cut5=100000.,Double_t cut6=100000.,
  87                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  88   void SetD0toKpiCuts(const Double_t cuts[9]);
  89   void SetD0fromDstarCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  90                           Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  91                           Double_t cut5=100000.,Double_t cut6=100000.,
  92                           Double_t cut7=100000000.,Double_t cut8=-1.1);
  93   void SetD0fromDstarCuts(const Double_t cuts[9]);
  94   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
  95                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  96                       Double_t cut5=100000.,Double_t cut6=100000.,
  97                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  98   void SetBtoJPSICuts(const Double_t cuts[9]);
  99   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
 100                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 101                     Double_t cut5=0.,Double_t cut6=10000000000.,
 102                     Double_t cut7=0.,Double_t cut8=0.,
 103                     Double_t cut9=-1.1,Double_t cut10=0.,
 104                     Double_t cut11=10000000000.);
 105   void SetDplusCuts(const Double_t cuts[12]);
 106   void SetDsCuts(Double_t cut0=1000.,Double_t cut1=0.,
 107                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 108                  Double_t cut5=0.,Double_t cut6=10000000000.,
 109                  Double_t cut7=0.,Double_t cut8=0.,
 110                  Double_t cut9=-1.1,Double_t cut10=0.,
 111                  Double_t cut11=10000000000., Double_t cut12=1000.,
 112                  Double_t cut13=1000.);
 113   void SetDsCuts(const Double_t cuts[14]);
 114   void SetLcCuts(Double_t cut0=1000.,Double_t cut1=0.,
 115                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 116                  Double_t cut5=0.,Double_t cut6=10000000000.,
 117                  Double_t cut7=0.,Double_t cut8=0.,
 118                  Double_t cut9=-1.1,Double_t cut10=0.,
 119                  Double_t cut11=10000000000.);
 120   void SetLcCuts(const Double_t cuts[12]);
 121   void SetDstarCuts(Double_t cut0=1000., Double_t cut1=1000.,
 122                       Double_t cut2=-1., Double_t cut3=1000.,
 123                       Double_t cut4=1.6);
 124   void SetDstarCuts(const Double_t cuts[5]);
 125   void SetD0to4ProngsCuts(Double_t cut0=1000.,Double_t cut1=100000.,
 126                       Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 127                       Double_t cut5=-1.1,Double_t cut6=0.,
 128                       Double_t cut7=0.,Double_t cut8=0.);
 129   void SetD0to4ProngsCuts(const Double_t cuts[9]);
 130   const Double_t *GetD0toKpiCuts() const {return fD0toKpiCuts;}
 131   const Double_t *GetD0fromDstarCuts() const {return fD0fromDstarCuts;}
 132   const Double_t *GetBtoJPSICuts() const {return fBtoJPSICuts;}
 133   const Double_t *GetDplusCuts() const {return fDplusCuts;}
 134   const Double_t *GetDsCuts() const {return fDsCuts;}
 135   const Double_t *GetLcCuts() const {return fLcCuts;}
 136   const Double_t *GetDstarCuts() const {return fDstarCuts;}
 137   const Double_t *GetD0to4ProngsCuts() const {return fD0to4ProngsCuts;}
 138
 139   //
 140  private:
 141   //
 142   enum { kBitDispl = 0, kBitSoftPi = 1 };
 143
 144   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 145
 146   Int_t fAODMapSize; // size of fAODMap
 147   Int_t *fAODMap; //[fAODMapSize] map between index and ID for AOD tracks
 148
 149   Double_t fBzkG; // z componenent of field in kG
 150
 151   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 152
 153   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 154                                    // for each candidate, w/o its daughters
 155   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 156                              // the primary vertex
 157
 158   AliESDVertex *fV1; // primary vertex
 159
 160   // flag to enable candidates production
 161   Bool_t fD0toKpi;   // D0->Kpi
 162   Bool_t fJPSItoEle; // Jpsi->ee
 163   Bool_t f3Prong;    // D+,Ds,Lc
 164   Bool_t f4Prong;    // D0->Kpipipi
 165   Bool_t fDstar;     // D*->D0pi
 166   Bool_t fLikeSign;  // Like-sign pairs
 167   Bool_t fMixEvent; // event mixing
 168
 169   // single-track cuts
 170   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 171   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 172   // candidates cuts
 173   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 174                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 175                           // 0 = inv. mass half width [GeV]
 176                           // 1 = dca [cm]
 177                           // 2 = cosThetaStar
 178                           // 3 = pTK [GeV/c]
 179                           // 4 = pTPi [GeV/c]
 180                           // 5 = d0K [cm]   upper limit!
 181                           // 6 = d0Pi [cm]  upper limit!
 182                           // 7 = d0d0 [cm^2]
 183                           // 8 = cosThetaPoint
 184   Double_t fD0fromDstarCuts[9]; // cuts on D0->Kpi candidates from D*
 185                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 186                           // 0 = inv. mass half width [GeV]
 187                           // 1 = dca [cm]
 188                           // 2 = cosThetaStar
 189                           // 3 = pTK [GeV/c]
 190                           // 4 = pTPi [GeV/c]
 191                           // 5 = d0K [cm]   upper limit!
 192                           // 6 = d0Pi [cm]  upper limit!
 193                           // 7 = d0d0 [cm^2]
 194                           // 8 = cosThetaPoint
 195   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 196                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 197                           // 0 = inv. mass half width [GeV]
 198                           // 1 = dca [cm]
 199                           // 2 = cosThetaStar (negative electron)
 200                           // 3 = pTP [GeV/c]
 201                           // 4 = pTN [GeV/c]
 202                           // 5 = d0O [cm]   upper limit!
 203                           // 6 = d0N [cm]  upper limit!
 204                           // 7 = d0d0 [cm^2]
 205                           // 8 = cosThetaPoint
 206   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 207                   // (to be passed to AliAODRecoDecayHF3Prong::SelectDplus())
 208                           // 0 = inv. mass half width [GeV]
 209                           // 1 = pTK [GeV/c]
 210                           // 2 = pTPi [GeV/c]
 211                           // 3 = d0K [cm]   lower limit!
 212                           // 4 = d0Pi [cm]  lower limit!
 213                           // 5 = dist12 (cm)
 214                           // 6 = sigmavert (cm)
 215                           // 7 = dist prim-sec (cm)
 216                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 217                           // 9 = cosThetaPoint
 218                           // 10 = Sum d0^2 (cm^2)
 219                           // 11 = dca cut (cm)
 220   Double_t fDsCuts[14]; // cuts on Ds candidates
 221                         // (to be passed to AliAODRecoDecayHF3Prong::SelectDs())
 222                         // 0 = inv. mass half width [GeV]
 223                         // 1 = pTK [GeV/c]
 224                         // 2 = pTPi [GeV/c]
 225                         // 3 = d0K [cm]   lower limit!
 226                         // 4 = d0Pi [cm]  lower limit!
 227                         // 5 = dist12 (cm)
 228                         // 6 = sigmavert (cm)
 229                         // 7 = dist prim-sec (cm)
 230                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 231                         // 9 = cosThetaPoint
 232                         // 10 = Sum d0^2 (cm^2)
 233                         // 11 = dca cut (cm)
 234                         // 12 = inv. mass cut around phi
 235                         // 13 = inv. mass cut around phi K0* [GeV]
 236    Double_t fLcCuts[12]; // cuts on Lambdac candidates
 237                         // (to be passed to AliAODRecoDecayHF3Prong::SelectLc())
 238                         // 0 = inv. mass half width [GeV]
 239                         // 1 = pTP [GeV/c]
 240                         // 2 = pTPi abd pTK [GeV/c]
 241                         // 3 = d0P [cm]   lower limit!
 242                         // 4 = d0Pi and d0K [cm]  lower limit!
 243                         // 5 = dist12 (cm)
 244                         // 6 = sigmavert (cm)
 245                         // 7 = dist prim-sec (cm)
 246                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 247                         // 9 = cosThetaPoint
 248                         // 10 = Sum d0^2 (cm^2)
 249                         // 11 = dca cut (cm)
 250   Double_t fDstarCuts[5]; // cuts on D* candidates
 251                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 252                         // 0 = inv. mass half width of D* [GeV]
 253                         // 1 = half width of (M_Kpipi-M_Kpi) [GeV]
 254                         // 2 = PtMin of pi_s [GeV/c]
 255                         // 3 = PtMax of pi_s [GeV/c]
 256                         // 4 = theta, angle between the track of pi_s and D0 decay plane [rad]
 257
 258   Double_t fD0to4ProngsCuts[9]; // cuts on D0->K3pi candidates
 259                         // (to be passed to AliAODRecoDecayHF4Prong::SelectD0())
 260                         // 0 = inv. mass half width of D0 [GeV]
 261                         // 1 = DCA between opposite sign tracks
 262                         // 2 = Distance between primary and two tracks vertex fDist12toPrim
 263                         // 3 = Distance between primary and three tracks vertex fDist3toPrim
 264                         // 4 = Distance between primary and two tracks vertex fDist4toPrim
 265                         // 5 = Cosinus of the pointing angle
 266                         // 6 = Transverse momentum of the D0 candidate
 267                         // 7 = Mass Pi+Pi- = mass of the rho0
 268                         // 8 = PID cut (one K in the quadruplet)
 269
 270   Bool_t fFindVertexForDstar; // reconstruct a secondary vertex or assume it's from the primary vertex
 271   //
 272   void AddDaughterRefs(AliAODVertex *v,const AliVEvent *event,
 273                        const TObjArray *trkArray) const;
 274   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 275                                       AliAODVertex *secVert,Double_t dcap1n1,
 276                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 277   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 278                                       AliAODVertex *secVert,
 279                                       Double_t dispersion,
 280                                       const AliAODVertex *vertexp1n1,
 281                                       const AliAODVertex *vertexp2n1,
 282                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 283                                       Bool_t &ok3Prong) const;
 284   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 285                                       AliAODVertex *secVert,
 286                                       const AliAODVertex *vertexp1n1,
 287                                       const AliAODVertex *vertexp1n1p2,
 288                                       Double_t dcap1n1,Double_t dcap1n2,
 289                                       Double_t dcap2n1,Double_t dcap2n2,
 290                                       Bool_t &ok4Prong) const;
 291   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 292                                    AliAODVertex *secVert,
 293                                    AliAODRecoDecayHF2Prong *rd2Prong,
 294                                    Double_t dca,
 295                                    Bool_t &okDstar) const;
 296
 297   AliAODVertex* PrimaryVertex(const TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 298   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 299   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 300                        Double_t *px,Double_t *py,Double_t *pz) const;
 301   void   SelectTracksAndCopyVertex(const AliVEvent *event,
 302                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
 303                                    UChar_t *seleFlags,Int_t *evtNumber);
 304   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 305   //
 306   ClassDef(AliAnalysisVertexingHF,13);  // Reconstruction of HF decay candidates
 307 };
 308
 309
 310 #endif
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