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@lnl.infn.it
  12 //-------------------------------------------------------------------------
  13
  14 #include <TNamed.h>
  15 #include "AliESDVertex.h"
  16 #include "AliAODRecoDecayHF.h"
  17 #include "AliAODRecoDecayHF2Prong.h"
  18 #include "AliAODRecoDecayHF3Prong.h"
  19 #include "AliAODRecoDecayHF4Prong.h"
  20 #include "AliAODRecoCascadeHF.h"
  21 #include "AliAnalysisFilter.h"
  22
  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 *aodLikeSignTClArr);
  44
  45   void PrintStatus() const;
  46   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  47   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  48   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  49   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  50   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  51   void Set3ProngOn() { f3Prong=kTRUE; }
  52   void Set3ProngOff() { f3Prong=kFALSE; }
  53   void Set4ProngOn() { f4Prong=kTRUE; }
  54   void Set4ProngOff() { f4Prong=kFALSE; }
  55   void SetDstarOn() { fDstar=kTRUE; }
  56   void SetDstarOff() { fDstar=kFALSE; }
  57   void SetLikeSignOn() { fLikeSign=kTRUE; }
  58   void SetLikeSignOff() { fLikeSign=kFALSE; }
  59   Bool_t GetD0toKpi() { return fD0toKpi; }
  60   Bool_t GetJPSItoEle() { return fJPSItoEle; }
  61   Bool_t Get3Prong() { return f3Prong; }
  62   Bool_t Get4Prong() { return f4Prong; }
  63   Bool_t GetDstar()  { return fDstar; }
  64   Bool_t GetLikeSign() { return fLikeSign; }
  65   void SetRecoPrimVtxSkippingTrks()
  66     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  67   void SetRmTrksFromPrimVtx()
  68     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  69   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
  70   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
  71   AliAnalysisFilter* GetTrackFilter() const { return fTrackFilter; }
  72   AliAnalysisFilter* GetTrackFilterSoftPi() const { return fTrackFilterSoftPi; }
  73   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  74                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  75                       Double_t cut5=100000.,Double_t cut6=100000.,
  76                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  77   void SetD0toKpiCuts(const Double_t cuts[9]);
  78   void SetD0fromDstarCuts(Double_t cut0=1000.,Double_t cut1=100000.,
  79                           Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  80                           Double_t cut5=100000.,Double_t cut6=100000.,
  81                           Double_t cut7=100000000.,Double_t cut8=-1.1);
  82   void SetD0fromDstarCuts(const Double_t cuts[9]);
  83   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
  84                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
  85                       Double_t cut5=100000.,Double_t cut6=100000.,
  86                       Double_t cut7=100000000.,Double_t cut8=-1.1);
  87   void SetBtoJPSICuts(const Double_t cuts[9]);
  88   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
  89                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  90                     Double_t cut5=0.,Double_t cut6=10000000000.,
  91                     Double_t cut7=0.,Double_t cut8=0.,
  92                     Double_t cut9=-1.1,Double_t cut10=0.,
  93                     Double_t cut11=10000000000.);
  94   void SetDplusCuts(const Double_t cuts[12]);
  95   void SetDsCuts(Double_t cut0=1000.,Double_t cut1=0.,
  96                 Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
  97                 Double_t cut5=0.,Double_t cut6=10000000000.,
  98                 Double_t cut7=0.,Double_t cut8=0.,
  99                 Double_t cut9=-1.1,Double_t cut10=0.,
 100                 Double_t cut11=10000000000., Double_t cut12=1000.);
 101   void SetDsCuts(const Double_t cuts[13]);
 102   void SetLcCuts(Double_t cut0=1000.,Double_t cut1=0.,
 103                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 104                  Double_t cut5=0.,Double_t cut6=10000000000.,
 105                  Double_t cut7=0.,Double_t cut8=0.,
 106                  Double_t cut9=-1.1,Double_t cut10=0.,
 107                  Double_t cut11=10000000000.);
 108   void SetLcCuts(const Double_t cuts[12]);
 109   void SetDstarCuts(Double_t cut0=1000., Double_t cut1=1000.,
 110                       Double_t cut2=-1., Double_t cut3=1000.,
 111                       Double_t cut4=1.6);
 112   void SetDstarCuts(const Double_t cuts[5]);
 113   void SetD0to4ProngsCuts(Double_t cut0=1000.,Double_t cut1=100000.,
 114                       Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 115                       Double_t cut5=-1.1,Double_t cut6=0.,
 116                       Double_t cut7=0.,Double_t cut8=0.);
 117   void SetD0to4ProngsCuts(const Double_t cuts[9]);
 118   const Double_t *GetD0toKpiCuts() const {return fD0toKpiCuts;}
 119   const Double_t *GetD0fromDstarCuts() const {return fD0fromDstarCuts;}
 120   const Double_t *GetBtoJPSICuts() const {return fBtoJPSICuts;}
 121   const Double_t *GetDplusCuts() const {return fDplusCuts;}
 122   const Double_t *GetDsCuts() const {return fDsCuts;}
 123   const Double_t *GetLcCuts() const {return fLcCuts;}
 124   const Double_t *GetDstarCuts() const {return fDstarCuts;}
 125   const Double_t *GetD0to4ProngsCuts() const {return fD0to4ProngsCuts;}
 126
 127   //
 128  private:
 129   //
 130   enum { kBitDispl = 0, kBitSoftPi = 1 };
 131
 132   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 133
 134   Int_t *fAODMap; // map between index and ID for AOD tracks
 135
 136   Double_t fBzkG; // z componenent of field in kG
 137
 138   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 139
 140   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 141                                    // for each candidate, w/o its daughters
 142   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 143                              // the primary vertex
 144
 145   AliESDVertex *fV1; // primary vertex
 146
 147   // flag to enable candidates production
 148   Bool_t fD0toKpi;   // D0->Kpi
 149   Bool_t fJPSItoEle; // Jpsi->ee
 150   Bool_t f3Prong;    // D+,Ds,Lc
 151   Bool_t f4Prong;    // D0->Kpipipi
 152   Bool_t fDstar;     // D*->D0pi
 153   Bool_t fLikeSign;  // Like-sign pairs
 154
 155   // single-track cuts
 156   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 157   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 158   // candidates cuts
 159   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 160                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 161                           // 0 = inv. mass half width [GeV]
 162                           // 1 = dca [cm]
 163                           // 2 = cosThetaStar
 164                           // 3 = pTK [GeV/c]
 165                           // 4 = pTPi [GeV/c]
 166                           // 5 = d0K [cm]   upper limit!
 167                           // 6 = d0Pi [cm]  upper limit!
 168                           // 7 = d0d0 [cm^2]
 169                           // 8 = cosThetaPoint
 170   Double_t fD0fromDstarCuts[9]; // cuts on D0->Kpi candidates from D*
 171                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 172                           // 0 = inv. mass half width [GeV]
 173                           // 1 = dca [cm]
 174                           // 2 = cosThetaStar
 175                           // 3 = pTK [GeV/c]
 176                           // 4 = pTPi [GeV/c]
 177                           // 5 = d0K [cm]   upper limit!
 178                           // 6 = d0Pi [cm]  upper limit!
 179                           // 7 = d0d0 [cm^2]
 180                           // 8 = cosThetaPoint
 181   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 182                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 183                           // 0 = inv. mass half width [GeV]
 184                           // 1 = dca [cm]
 185                           // 2 = cosThetaStar (negative electron)
 186                           // 3 = pTP [GeV/c]
 187                           // 4 = pTN [GeV/c]
 188                           // 5 = d0O [cm]   upper limit!
 189                           // 6 = d0N [cm]  upper limit!
 190                           // 7 = d0d0 [cm^2]
 191                           // 8 = cosThetaPoint
 192   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 193                   // (to be passed to AliAODRecoDecayHF3Prong::SelectDplus())
 194                           // 0 = inv. mass half width [GeV]
 195                           // 1 = pTK [GeV/c]
 196                           // 2 = pTPi [GeV/c]
 197                           // 3 = d0K [cm]   lower limit!
 198                           // 4 = d0Pi [cm]  lower limit!
 199                           // 5 = dist12 (cm)
 200                           // 6 = sigmavert (cm)
 201                           // 7 = dist prim-sec (cm)
 202                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 203                           // 9 = cosThetaPoint
 204                           // 10 = Sum d0^2 (cm^2)
 205                           // 11 = dca cut (cm)
 206   Double_t fDsCuts[13]; // cuts on Ds candidates
 207                         // (to be passed to AliAODRecoDecayHF3Prong::SelectDs())
 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                         // 12 = inv. mass cut arounf phi and K0* [GeV]
 221    Double_t fLcCuts[12]; // cuts on Lambdac candidates
 222                         // (to be passed to AliAODRecoDecayHF3Prong::SelectLc())
 223                         // 0 = inv. mass half width [GeV]
 224                         // 1 = pTP [GeV/c]
 225                         // 2 = pTPi abd pTK [GeV/c]
 226                         // 3 = d0P [cm]   lower limit!
 227                         // 4 = d0Pi and d0K [cm]  lower limit!
 228                         // 5 = dist12 (cm)
 229                         // 6 = sigmavert (cm)
 230                         // 7 = dist prim-sec (cm)
 231                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 232                         // 9 = cosThetaPoint
 233                         // 10 = Sum d0^2 (cm^2)
 234                         // 11 = dca cut (cm)
 235   Double_t fDstarCuts[5]; // cuts on D* candidates
 236                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 237                         // 0 = inv. mass half width of D* [GeV]
 238                         // 1 = half width of (M_Kpipi-M_Kpi) [GeV]
 239                         // 2 = PtMin of pi_s [GeV/c]
 240                         // 3 = PtMax of pi_s [GeV/c]
 241                         // 4 = theta, angle between the track of pi_s and D0 decay plane [rad]
 242
 243   Double_t fD0to4ProngsCuts[9]; // cuts on D0->K3pi candidates
 244                         // (to be passed to AliAODRecoDecayHF4Prong::SelectD0())
 245                         // 0 = inv. mass half width of D0 [GeV]
 246                         // 1 = DCA between opposite sign tracks
 247                         // 2 = Distance between primary and two tracks vertex fDist12toPrim
 248                         // 3 = Distance between primary and three tracks vertex fDist3toPrim
 249                         // 4 = Distance between primary and two tracks vertex fDist4toPrim
 250                         // 5 = Cosinus of the pointing angle
 251                         // 6 = Transverse momentum of the D0 candidate
 252                         // 7 = Mass Pi+Pi- = mass of the rho0
 253                         // 8 = PID cut (one K in the quadruplet)
 254
 255   //
 256   void AddDaughterRefs(AliAODVertex *v,AliVEvent *event,
 257                        TObjArray *trkArray) const;
 258   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 259                                       AliAODVertex *secVert,Double_t dcap1n1,
 260                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 261   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 262                                       AliAODVertex *secVert,
 263                                       Double_t dispersion,
 264                                       AliAODVertex *vertexp1n1,
 265                                       AliAODVertex *vertexp2n1,
 266                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 267                                       Bool_t &ok3Prong) const;
 268   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 269                                       AliAODVertex *secVert,
 270                                       AliAODVertex *vertexp1n1,
 271                                       AliAODVertex *vertexp1n1p2,
 272                                       Double_t dcap1n1,Double_t dcap1n2,
 273                                       Double_t dcap2n1,Double_t dcap2n2,
 274                                       Bool_t &ok4Prong) const;
 275   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 276                                    AliAODVertex *secVert,
 277                                    AliAODRecoDecayHF2Prong *rd2Prong,
 278                                    Double_t dca,
 279                                    Bool_t &okDstar) const;
 280
 281   AliAODVertex* PrimaryVertex(TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 282   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 283   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 284                        Double_t *px,Double_t *py,Double_t *pz) const;
 285   void   SelectTracksAndCopyVertex(AliVEvent *event,
 286                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
 287                                    UChar_t *seleFlags);
 288   void   SetPrimaryVertex(AliESDVertex *v1) { fV1 = v1; }
 289   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 290   //
 291   ClassDef(AliAnalysisVertexingHF,8);  // Reconstruction of HF decay candidates
 292 };
 293
 294
 295 #endif
 296
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