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 TList;
  17 class AliESDVertex;
  18 class AliAODRecoDecayHF;
  19 class AliAODRecoDecayHF2Prong;
  20 class AliAODRecoDecayHF3Prong;
  21 class AliAODRecoDecayHF4Prong;
  22 class AliAODRecoCascadeHF;
  23 class AliAnalysisFilter;
  24 class AliRDHFCutsD0toKpi;
  25 class AliRDHFCutsJpsitoee;
  26 class AliRDHFCutsDplustoKpipi;
  27 class AliRDHFCutsDstoKKpi;
  28 class AliRDHFCutsLctopKpi;
  29 class AliRDHFCutsD0toKpipipi;
  30 class AliESDtrack;
  31 class AliVEvent;
  32 class AliAODVertex;
  33
  34 //-----------------------------------------------------------------------------
  35 class AliAnalysisVertexingHF : public TNamed {
  36  public:
  37   //
  38   AliAnalysisVertexingHF();
  39   AliAnalysisVertexingHF(const AliAnalysisVertexingHF& source);
  40   AliAnalysisVertexingHF& operator=(const AliAnalysisVertexingHF& source);
  41   virtual ~AliAnalysisVertexingHF();
  42
  43   void FindCandidates(AliVEvent *event,
  44                       TClonesArray *aodVerticesHFTClArr,
  45                       TClonesArray *aodD0toKpiTClArr,
  46                       TClonesArray *aodJPSItoEleTClArr,
  47                       TClonesArray *aodCharm3ProngTClArr,
  48                       TClonesArray *aodCharm4ProngTClArr,
  49                       TClonesArray *aodDstarTClArr,
  50                       TClonesArray *aodLikeSign2ProngTClArr,
  51                       TClonesArray *aodLikeSign3ProngTClArr);
  52
  53   TList* FillListOfCuts();
  54   void PrintStatus() const;
  55   void SetSecVtxWithKF() { fSecVtxWithKF=kTRUE; }
  56   void SetD0toKpiOn() { fD0toKpi=kTRUE; }
  57   void SetD0toKpiOff() { fD0toKpi=kFALSE; }
  58   void SetJPSItoEleOn() { fJPSItoEle=kTRUE; }
  59   void SetJPSItoEleOff() { fJPSItoEle=kFALSE; }
  60   void Set3ProngOn() { f3Prong=kTRUE; }
  61   void Set3ProngOff() { f3Prong=kFALSE; }
  62   void Set4ProngOn() { f4Prong=kTRUE; }
  63   void Set4ProngOff() { f4Prong=kFALSE; }
  64   void SetDstarOn() { fDstar=kTRUE; }
  65   void SetDstarOff() { fDstar=kFALSE; }
  66   void SetLikeSignOn() { fLikeSign=kTRUE; }
  67   void SetLikeSignOff() { fLikeSign=kFALSE; }
  68   void SetMixEventOn() { fMixEvent=kTRUE; }
  69   void SetMixEventOff() { fMixEvent=kFALSE; }
  70   void SetInputAOD() { fInputAOD=kTRUE; }
  71   Bool_t GetD0toKpi() const { return fD0toKpi; }
  72   Bool_t GetJPSItoEle() const { return fJPSItoEle; }
  73   Bool_t Get3Prong() const { return f3Prong; }
  74   Bool_t Get4Prong() const { return f4Prong; }
  75   Bool_t GetDstar()  const { return fDstar; }
  76   Bool_t GetLikeSign() const { return fLikeSign; }
  77   Bool_t GetMixEvent() const { return fMixEvent; }
  78   Bool_t GetInputAOD() const { return fInputAOD; }
  79   Bool_t GetRecoPrimVtxSkippingTrks() const {return fRecoPrimVtxSkippingTrks;}
  80   Bool_t GetRmTrksFromPrimVtx() const {return fRmTrksFromPrimVtx;}
  81   void SetFindVertexForDstar(Bool_t vtx=kTRUE) { fFindVertexForDstar=vtx; }
  82   void SetRecoPrimVtxSkippingTrks()
  83     { fRecoPrimVtxSkippingTrks=kTRUE; fRmTrksFromPrimVtx=kFALSE;}
  84   void UnsetRecoPrimVtxSkippingTrks()
  85     { fRecoPrimVtxSkippingTrks=kFALSE; fRmTrksFromPrimVtx=kFALSE;}
  86   void SetRmTrksFromPrimVtx()
  87     {fRmTrksFromPrimVtx=kTRUE; fRecoPrimVtxSkippingTrks=kFALSE; }
  88   void SetTrackFilter(AliAnalysisFilter* trackF) { fTrackFilter = trackF; }
  89   void SetTrackFilterSoftPi(AliAnalysisFilter* trackF) { fTrackFilterSoftPi = trackF; }
  90   AliAnalysisFilter* GetTrackFilter() const { return fTrackFilter; }
  91   AliAnalysisFilter* GetTrackFilterSoftPi() const { return fTrackFilterSoftPi; }
  92   void SetCutsD0toKpi(AliRDHFCutsD0toKpi* cuts) { fCutsD0toKpi = cuts; }
  93   AliRDHFCutsD0toKpi* GetCutsD0toKpi() const { return fCutsD0toKpi; }
  94   void SetCutsJpsitoee(AliRDHFCutsJpsitoee* cuts) { fCutsJpsitoee = cuts; }
  95   AliRDHFCutsJpsitoee* GetCutsJpsitoee() const { return fCutsJpsitoee; }
  96   void SetCutsDplustoKpipi(AliRDHFCutsDplustoKpipi* cuts) { fCutsDplustoKpipi = cuts; }
  97   AliRDHFCutsDplustoKpipi* GetCutsDplustoKpipi() const { return fCutsDplustoKpipi; }
  98   void SetCutsDstoKKpi(AliRDHFCutsDstoKKpi* cuts) { fCutsDstoKKpi = cuts; }
  99   AliRDHFCutsDstoKKpi* GetCutsDstoKKpi() const { return fCutsDstoKKpi; }
 100   void SetCutsLctopKpi(AliRDHFCutsLctopKpi* cuts) { fCutsLctopKpi = cuts; }
 101   AliRDHFCutsLctopKpi* GetCutsLctopKpi() const { return fCutsLctopKpi; }
 102   void SetCutsD0toKpipipi(AliRDHFCutsD0toKpipipi* cuts) { fCutsD0toKpipipi = cuts; }
 103   AliRDHFCutsD0toKpipipi* GetCutsD0toKpipipi() const { return fCutsD0toKpipipi; }
 104   void SetCutsD0fromDstar(AliRDHFCutsD0toKpi* cuts) { fCutsD0fromDstar = cuts; }
 105   AliRDHFCutsD0toKpi* GetCutsD0fromDstar() const { return fCutsD0fromDstar; }
 106   void SetD0toKpiCuts(Double_t cut0=1000.,Double_t cut1=100000.,
 107                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
 108                       Double_t cut5=100000.,Double_t cut6=100000.,
 109                       Double_t cut7=100000000.,Double_t cut8=-1.1);
 110   void SetD0toKpiCuts(const Double_t cuts[9]);
 111   void SetD0fromDstarCuts(Double_t cut0=1000.,Double_t cut1=100000.,
 112                           Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
 113                           Double_t cut5=100000.,Double_t cut6=100000.,
 114                           Double_t cut7=100000000.,Double_t cut8=-1.1);
 115   void SetD0fromDstarCuts(const Double_t cuts[9]);
 116   void SetBtoJPSICuts(Double_t cut0=1000.,Double_t cut1=100000.,
 117                       Double_t cut2=1.1,Double_t cut3=0.,Double_t cut4=0.,
 118                       Double_t cut5=100000.,Double_t cut6=100000.,
 119                       Double_t cut7=100000000.,Double_t cut8=-1.1);
 120   void SetBtoJPSICuts(const Double_t cuts[9]);
 121   void SetDplusCuts(Double_t cut0=1000.,Double_t cut1=0.,
 122                     Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 123                     Double_t cut5=0.,Double_t cut6=10000000000.,
 124                     Double_t cut7=0.,Double_t cut8=0.,
 125                     Double_t cut9=-1.1,Double_t cut10=0.,
 126                     Double_t cut11=10000000000.);
 127   void SetDplusCuts(const Double_t cuts[12]);
 128   void SetDsCuts(Double_t cut0=1000.,Double_t cut1=0.,
 129                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 130                  Double_t cut5=0.,Double_t cut6=10000000000.,
 131                  Double_t cut7=0.,Double_t cut8=0.,
 132                  Double_t cut9=-1.1,Double_t cut10=0.,
 133                  Double_t cut11=10000000000., Double_t cut12=1000.,
 134                  Double_t cut13=1000.);
 135   void SetDsCuts(const Double_t cuts[14]);
 136   void SetLcCuts(Double_t cut0=1000.,Double_t cut1=0.,
 137                  Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 138                  Double_t cut5=0.,Double_t cut6=10000000000.,
 139                  Double_t cut7=0.,Double_t cut8=0.,
 140                  Double_t cut9=-1.1,Double_t cut10=0.,
 141                  Double_t cut11=10000000000.);
 142   void SetLcCuts(const Double_t cuts[12]);
 143   void SetDstarCuts(Double_t cut0=1000., Double_t cut1=1000.,
 144                       Double_t cut2=-1., Double_t cut3=1000.,
 145                       Double_t cut4=1.6);
 146   void SetDstarCuts(const Double_t cuts[5]);
 147   void SetD0to4ProngsCuts(Double_t cut0=1000.,Double_t cut1=100000.,
 148                       Double_t cut2=0.,Double_t cut3=0.,Double_t cut4=0.,
 149                       Double_t cut5=-1.1,Double_t cut6=0.,
 150                       Double_t cut7=0.,Double_t cut8=0.);
 151   void SetD0to4ProngsCuts(const Double_t cuts[9]);
 152   const Double_t *GetD0toKpiCuts() const {return fD0toKpiCuts;}
 153   const Double_t *GetD0fromDstarCuts() const {return fD0fromDstarCuts;}
 154   const Double_t *GetBtoJPSICuts() const {return fBtoJPSICuts;}
 155   const Double_t *GetDplusCuts() const {return fDplusCuts;}
 156   const Double_t *GetDsCuts() const {return fDsCuts;}
 157   const Double_t *GetLcCuts() const {return fLcCuts;}
 158   const Double_t *GetDstarCuts() const {return fDstarCuts;}
 159   const Double_t *GetD0to4ProngsCuts() const {return fD0to4ProngsCuts;}
 160
 161   //
 162  private:
 163   //
 164   enum { kBitDispl = 0, kBitSoftPi = 1 };
 165
 166   Bool_t fInputAOD; // input from AOD (kTRUE) or ESD (kFALSE)
 167   Int_t fAODMapSize; // size of fAODMap
 168   Int_t *fAODMap; //[fAODMapSize] map between index and ID for AOD tracks
 169
 170   Double_t fBzkG; // z componenent of field in kG
 171
 172   Bool_t fSecVtxWithKF; // if kTRUE use KF vertexer, else AliVertexerTracks
 173
 174   Bool_t fRecoPrimVtxSkippingTrks; // flag for primary vertex reco on the fly
 175                                    // for each candidate, w/o its daughters
 176   Bool_t fRmTrksFromPrimVtx; // flag for fast removal of daughters from
 177                              // the primary vertex
 178
 179   AliESDVertex *fV1; // primary vertex
 180
 181   // flag to enable candidates production
 182   Bool_t fD0toKpi;   // D0->Kpi
 183   Bool_t fJPSItoEle; // Jpsi->ee
 184   Bool_t f3Prong;    // D+,Ds,Lc
 185   Bool_t f4Prong;    // D0->Kpipipi
 186   Bool_t fDstar;     // D*->D0pi
 187   Bool_t fLikeSign;  // Like-sign pairs
 188   Bool_t fMixEvent; // event mixing
 189
 190   // single-track cuts
 191   AliAnalysisFilter *fTrackFilter; //  Track Filter for displaced vertices
 192   AliAnalysisFilter *fTrackFilterSoftPi; //  Track Filter for D* soft pion
 193   // candidates cuts
 194   AliRDHFCutsD0toKpi *fCutsD0toKpi; // D0->Kpi cuts
 195   AliRDHFCutsJpsitoee *fCutsJpsitoee; // J/psi->ee cuts
 196   AliRDHFCutsDplustoKpipi *fCutsDplustoKpipi; // D+->Kpipi cuts
 197   AliRDHFCutsDstoKKpi *fCutsDstoKKpi; // Ds->KKpi cuts
 198   AliRDHFCutsLctopKpi *fCutsLctopKpi; // Lc->pKpi cuts
 199   AliRDHFCutsD0toKpipipi *fCutsD0toKpipipi; // D0->Kpipipi cuts
 200   AliRDHFCutsD0toKpi *fCutsD0fromDstar; // D0 from Dstar cuts
 201
 202   Double_t fD0toKpiCuts[9]; // cuts on D0->Kpi candidates
 203                   // (to be passed to AliAODRecoDecayHF2Prong::SelectD0())
 204                           // 0 = inv. mass half width [GeV]
 205                           // 1 = dca [cm]
 206                           // 2 = cosThetaStar
 207                           // 3 = pTK [GeV/c]
 208                           // 4 = pTPi [GeV/c]
 209                           // 5 = d0K [cm]   upper limit!
 210                           // 6 = d0Pi [cm]  upper limit!
 211                           // 7 = d0d0 [cm^2]
 212                           // 8 = cosThetaPoint
 213   Double_t fD0fromDstarCuts[9]; // cuts on D0->Kpi candidates from D*
 214                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 215                           // 0 = inv. mass half width [GeV]
 216                           // 1 = dca [cm]
 217                           // 2 = cosThetaStar
 218                           // 3 = pTK [GeV/c]
 219                           // 4 = pTPi [GeV/c]
 220                           // 5 = d0K [cm]   upper limit!
 221                           // 6 = d0Pi [cm]  upper limit!
 222                           // 7 = d0d0 [cm^2]
 223                           // 8 = cosThetaPoint
 224   Double_t fBtoJPSICuts[9]; // cuts on JPSI candidates
 225                   // (to be passed to AliAODRecoDecayHF2Prong::SelectBtoJPSI())
 226                           // 0 = inv. mass half width [GeV]
 227                           // 1 = dca [cm]
 228                           // 2 = cosThetaStar (negative electron)
 229                           // 3 = pTP [GeV/c]
 230                           // 4 = pTN [GeV/c]
 231                           // 5 = d0O [cm]   upper limit!
 232                           // 6 = d0N [cm]  upper limit!
 233                           // 7 = d0d0 [cm^2]
 234                           // 8 = cosThetaPoint
 235   Double_t fDplusCuts[12]; // cuts on Dplus candidates
 236                   // (to be passed to AliAODRecoDecayHF3Prong::SelectDplus())
 237                           // 0 = inv. mass half width [GeV]
 238                           // 1 = pTK [GeV/c]
 239                           // 2 = pTPi [GeV/c]
 240                           // 3 = d0K [cm]   lower limit!
 241                           // 4 = d0Pi [cm]  lower limit!
 242                           // 5 = dist12 (cm)
 243                           // 6 = sigmavert (cm)
 244                           // 7 = dist prim-sec (cm)
 245                           // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 246                           // 9 = cosThetaPoint
 247                           // 10 = Sum d0^2 (cm^2)
 248                           // 11 = dca cut (cm)
 249   Double_t fDsCuts[14]; // cuts on Ds candidates
 250                         // (to be passed to AliAODRecoDecayHF3Prong::SelectDs())
 251                         // 0 = inv. mass half width [GeV]
 252                         // 1 = pTK [GeV/c]
 253                         // 2 = pTPi [GeV/c]
 254                         // 3 = d0K [cm]   lower limit!
 255                         // 4 = d0Pi [cm]  lower limit!
 256                         // 5 = dist12 (cm)
 257                         // 6 = sigmavert (cm)
 258                         // 7 = dist prim-sec (cm)
 259                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 260                         // 9 = cosThetaPoint
 261                         // 10 = Sum d0^2 (cm^2)
 262                         // 11 = dca cut (cm)
 263                         // 12 = inv. mass cut around phi
 264                         // 13 = inv. mass cut around phi K0* [GeV]
 265    Double_t fLcCuts[12]; // cuts on Lambdac candidates
 266                         // (to be passed to AliAODRecoDecayHF3Prong::SelectLc())
 267                         // 0 = inv. mass half width [GeV]
 268                         // 1 = pTP [GeV/c]
 269                         // 2 = pTPi abd pTK [GeV/c]
 270                         // 3 = d0P [cm]   lower limit!
 271                         // 4 = d0Pi and d0K [cm]  lower limit!
 272                         // 5 = dist12 (cm)
 273                         // 6 = sigmavert (cm)
 274                         // 7 = dist prim-sec (cm)
 275                         // 8 = pM=Max{pT1,pT2,pT3} (GeV/c)
 276                         // 9 = cosThetaPoint
 277                         // 10 = Sum d0^2 (cm^2)
 278                         // 11 = dca cut (cm)
 279   Double_t fDstarCuts[5]; // cuts on D* candidates
 280                         // (to be passed to AliAODRecoCascadeHF::SelectDstar())
 281                         // 0 = inv. mass half width of D* [GeV]
 282                         // 1 = half width of (M_Kpipi-M_Kpi) [GeV]
 283                         // 2 = PtMin of pi_s [GeV/c]
 284                         // 3 = PtMax of pi_s [GeV/c]
 285                         // 4 = theta, angle between the track of pi_s and D0 decay plane [rad]
 286
 287   Double_t fD0to4ProngsCuts[9]; // cuts on D0->K3pi candidates
 288                         // (to be passed to AliAODRecoDecayHF4Prong::SelectD0())
 289                         // 0 = inv. mass half width of D0 [GeV]
 290                         // 1 = DCA between opposite sign tracks
 291                         // 2 = Distance between primary and two tracks vertex fDist12toPrim
 292                         // 3 = Distance between primary and three tracks vertex fDist3toPrim
 293                         // 4 = Distance between primary and two tracks vertex fDist4toPrim
 294                         // 5 = Cosinus of the pointing angle
 295                         // 6 = Transverse momentum of the D0 candidate
 296                         // 7 = Mass Pi+Pi- = mass of the rho0
 297                         // 8 = PID cut (one K in the quadruplet)
 298
 299   TList *fListOfCuts;    // pointer to list of cuts for output file
 300   Bool_t fFindVertexForDstar; // reconstruct a secondary vertex or assume it's from the primary vertex
 301   //
 302   void AddRefs(AliAODVertex *v,AliAODRecoDecayHF *rd,const AliVEvent *event,
 303                const TObjArray *trkArray) const;
 304   void AddDaughterRefs(AliAODVertex *v,const AliVEvent *event,
 305                        const TObjArray *trkArray) const;
 306   AliAODRecoDecayHF2Prong* Make2Prong(TObjArray *twoTrackArray1,AliVEvent *event,
 307                                       AliAODVertex *secVert,Double_t dcap1n1,
 308                                       Bool_t &okD0,Bool_t &okJPSI,Bool_t &okD0fromDstar) const;
 309   AliAODRecoDecayHF3Prong* Make3Prong(TObjArray *threeTrackArray,AliVEvent *event,
 310                                       AliAODVertex *secVert,
 311                                       Double_t dispersion,
 312                                       const AliAODVertex *vertexp1n1,
 313                                       const AliAODVertex *vertexp2n1,
 314                                       Double_t dcap1n1,Double_t dcap2n1,Double_t dcap1p2,
 315                                       Bool_t &ok3Prong) const;
 316   AliAODRecoDecayHF4Prong* Make4Prong(TObjArray *fourTrackArray,AliVEvent *event,
 317                                       AliAODVertex *secVert,
 318                                       const AliAODVertex *vertexp1n1,
 319                                       const AliAODVertex *vertexp1n1p2,
 320                                       Double_t dcap1n1,Double_t dcap1n2,
 321                                       Double_t dcap2n1,Double_t dcap2n2,
 322                                       Bool_t &ok4Prong) const;
 323   AliAODRecoCascadeHF* MakeCascade(TObjArray *twoTrackArray,AliVEvent *event,
 324                                    AliAODVertex *secVert,
 325                                    AliAODRecoDecayHF2Prong *rd2Prong,
 326                                    Double_t dca,
 327                                    Bool_t &okDstar) const;
 328
 329   AliAODVertex* PrimaryVertex(const TObjArray *trkArray=0x0,AliVEvent *event=0x0) const;
 330   AliAODVertex* ReconstructSecondaryVertex(TObjArray *trkArray,Double_t &dispersion,Bool_t useTRefArray=kTRUE) const;
 331   Bool_t SelectInvMass(Int_t decay,Int_t nprongs,
 332                        Double_t *px,Double_t *py,Double_t *pz) const;
 333   void   SelectTracksAndCopyVertex(const AliVEvent *event,
 334                                    TObjArray &seleTrksArray,Int_t &nSeleTrks,
 335                                    UChar_t *seleFlags,Int_t *evtNumber);
 336   Bool_t SingleTrkCuts(AliESDtrack *trk,Bool_t &okDisplaced,Bool_t &okSoftPi) const;
 337   //
 338   ClassDef(AliAnalysisVertexingHF,16);  // Reconstruction of HF decay candidates
 339 };
 340
 341
 342 #endif
 343
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