RICH/AliRICH.h

   1 #ifndef AliRICH_h
   2 #define AliRICH_h
   3
   4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   5  * See cxx source for full Copyright notice                               */
   6
   7 #include <TObjArray.h>
   8 #include <TClonesArray.h>
   9 #include <TLorentzVector.h>
  10 #include <AliDetector.h>
  11 #include <AliHit.h>
  12 #include <AliDigit.h>
  13
  14 #include "AliRICHConst.h"
  15 #include "AliRICHChamber.h"
  16 #include "AliRICHParam.h"
  17
  18 #include "AliRICHSDigit.h"
  19
  20 //__________________AliRICHhit______________________________________________________________________
  21 //__________________________________________________________________________________________________
  22 //__________________________________________________________________________________________________
  23 class AliRICHhit : public AliHit
  24 {
  25 public:
  26   inline   AliRICHhit();
  27   inline   AliRICHhit(Int_t fIshunt, Int_t track, Int_t *vol, Float_t *hits);
  28   inline   AliRICHhit(Int_t track,Int_t iPID,Int_t iChamber,TLorentzVector x4,Float_t eloss);
  29   virtual ~AliRICHhit()         {;}
  30
  31   Int_t   C()                   {return fChamber;}
  32   Int_t   Chamber()             {return fChamber;}
  33   Int_t   Pid()                 {return fPid;}
  34   Int_t   Particle()            {return fPid;}
  35   Float_t Theta()               {return fTheta;}
  36   Float_t Phi()                 {return fPhi;}
  37   Float_t Tlength()             {return fTlength;}
  38   Float_t Eloss()               {return fEloss;}
  39   Float_t Loss()                {return fLoss;}
  40   Float_t PHfirst()             {return fPHfirst;}
  41   Float_t PHlast()              {return fPHlast;}
  42   Float_t MomX()                {return fMomX;}
  43   Float_t MomY()                {return fMomY;}
  44   Float_t MomZ()                {return fMomZ;}
  45   Float_t CerenkovAngle()       {return fCerenkovAngle;}
  46   Float_t MomFreoX()            {return fMomFreoX;}
  47   Float_t MomFreoY()            {return fMomFreoY;}
  48   Float_t MomFreoZ()            {return fMomFreoZ;}
  49   void    Print(Option_t *option="")const;      //virtual
  50 protected:
  51   Int_t     fChamber;                      //chamber number
  52   Int_t     fPid;                          //particle code
  53   Float_t   fTheta,fPhi ;                  //incident theta phi angles in degrees
  54   Float_t   fTlength;                      //track length inside the chamber
  55   Float_t   fEloss;                        //ionisation energy loss in gas
  56   Float_t   fPHfirst;                      //first padhit
  57   Float_t   fPHlast;                       //last padhit
  58   Float_t   fLoss;                         // did it hit the freon?
  59   Float_t   fMomX,fMomY,fMomZ;             //momentum at photochatode entry point
  60   Float_t   fNPads;                        // Pads hit
  61   Float_t   fCerenkovAngle;                // Dummy cerenkov angle
  62   Float_t   fMomFreoX,fMomFreoY,fMomFreoZ; //momentum at freon entry point
  63   ClassDef(AliRICHhit,1)                   //RICH hit class
  64 };//class AliRICHhit
  65
  66   //__________________________________________________________________________________________________
  67 AliRICHhit::AliRICHhit()
  68            :AliHit()
  69 {//default ctor
  70   fChamber=fPid=kBad;
  71   fTheta=fPhi=fTlength=fEloss=fPHfirst=fPHlast=fLoss=kBad;
  72   fMomX=fMomY=fMomZ=fNPads=fCerenkovAngle=fMomFreoX=fMomFreoY=fMomFreoZ=kBad;
  73 }
  74 //__________________________________________________________________________________________________
  75 AliRICHhit::AliRICHhit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hit):
  76             AliHit(shunt, track)
  77 {//ctor
  78   fChamber=vol[0];
  79   fPid=(Int_t)hit[0];
  80   fX=hit[1];fY=hit[2];fZ=hit[3];
  81   fTheta=hit[4];fPhi=hit[5];
  82   fTlength=hit[6];
  83   fEloss=hit[7];
  84   fPHfirst=(Int_t)hit[8];
  85   fPHlast=(Int_t)hit[9];
  86   fLoss=hit[13];
  87   fMomX=hit[14];fMomY=hit[15];fMomZ=hit[16];
  88   fNPads=hit[17];
  89   fCerenkovAngle=hit[18];
  90   fMomFreoX=hit[19];fMomFreoY=hit[20];fMomFreoZ=hit[21];
  91 }
  92 //__________________________________________________________________________________________________
  93 AliRICHhit::AliRICHhit(Int_t track,Int_t iPID,Int_t iChamber,TLorentzVector x4,Float_t eloss):
  94             AliHit(0, track)
  95 {//ctor
  96   fChamber=iChamber;
  97   fPid=iPID;
  98   fX=x4.X();fY=x4.Y();fZ=x4.Z();
  99   fEloss=eloss;
 100 }
 101
 102 //__________________AliRICHCerenkov_________________________________________________________________
 103 //__________________________________________________________________________________________________
 104 //__________________________________________________________________________________________________
 105 class AliRICHCerenkov: public AliHit
 106 {
 107 public:
 108   inline   AliRICHCerenkov();
 109   inline   AliRICHCerenkov(Int_t fIshunt, Int_t track, Int_t *vol, Float_t *Cerenkovs);
 110   virtual ~AliRICHCerenkov() {;}
 111 public:
 112   Int_t     fChamber;          //chamber number
 113   Float_t   fTheta,fPhi;       //incident theta phi angles in degrees
 114   Float_t   fTlength;          //track length inside the chamber
 115   Float_t   fEloss;            //ionisation energy loss in gas
 116   Int_t     fPHfirst;          //first padhit
 117   Int_t     fPHlast;           //last padhit
 118   Int_t     fCMother;          //index of mother particle
 119   Float_t   fLoss;             //nature of particle loss
 120   Float_t   fIndex;            //index of photon
 121   Float_t   fProduction;       //point of production
 122   Float_t   fMomX,fMomY,fMomZ; //local Momentum
 123   Float_t   fNPads;           // Pads hit
 124   Float_t   fCerenkovAngle;   // Cerenkov Angle
 125
 126   ClassDef(AliRICHCerenkov,1)  //RICH cerenkov class
 127 };//class AliRICHCerenkov
 128
 129 //__________________________________________________________________________________________________
 130 AliRICHCerenkov::AliRICHCerenkov()
 131 {//ctor
 132     fChamber=kBad;
 133     fX=fY=fZ=fTheta=fPhi=fTlength=fEloss=kBad;
 134     fPHfirst=fPHlast=fCMother=kBad;
 135     fLoss=fIndex=fProduction=fMomX=fMomY=fMomZ=fNPads=fCerenkovAngle=kBad;
 136 }
 137 //__________________________________________________________________________________________________
 138 AliRICHCerenkov::AliRICHCerenkov(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits)
 139                 :AliHit(shunt, track)
 140 {//ctor
 141     fChamber=vol[0];
 142     fX=hits[1];fY=hits[2];fZ=hits[3];
 143     fTheta=hits[4];fPhi=hits[5];
 144     fTlength=hits[6];
 145     fEloss=hits[7];
 146     fPHfirst=(Int_t)hits[8];fPHlast=(Int_t)hits[9];
 147     fCMother=Int_t(hits[10]);
 148     fIndex = hits[11];
 149     fProduction = hits[12];
 150     fLoss=hits[13];
 151     fMomX=hits[14];fMomY=hits[15];fMomZ=hits[16];
 152     fNPads=hits[17];
 153     fCerenkovAngle=hits[18];
 154 }
 155
 156 //__________________AliRICHdigit____________________________________________________________________
 157 //__________________________________________________________________________________________________
 158 //__________________________________________________________________________________________________
 159 class AliRICHdigit :public AliDigit
 160 {
 161 public:
 162            AliRICHdigit() {fPadX=fPadY=fChamber=fTracks[0]=fTracks[1]=fTracks[2]=kBad;fQdc=kBad;}
 163   inline   AliRICHdigit(Int_t iC,Int_t iX,Int_t iY,Double_t iQdc,Int_t iT1,Int_t iT2,Int_t iT3);
 164   virtual ~AliRICHdigit() {;}
 165   inline   Int_t    Compare(const TObject *pObj) const;                               //virtual
 166            Bool_t   IsSortable()                                  const{return kTRUE;}//virtual
 167            Int_t    C()                                           const{return fChamber/10;}
 168            Int_t    S()                                           const{return fChamber-(fChamber/10)*10;}
 169            Int_t    Chamber()                                     const{return C();}
 170            Int_t    Sector()                                      const{return S();}
 171            Int_t    X()                                           const{return fPadX;}
 172            Int_t    Y()                                           const{return fPadY;}
 173            Int_t    Id()                                          const{return fChamber*10000000+fPadX*1000+fPadY;}
 174            Double_t Q()                                           const{return fQdc;}
 175            Int_t    T(Int_t i)                                    const{return fTracks[i];}
 176            void  Print(Option_t *option="")const;                 //virtual
 177 protected:
 178   Int_t    fChamber;  //10*module number+ sector number
 179   Int_t    fPadX;     //pad number along X
 180   Int_t    fPadY;     //pad number along Y
 181   Double_t fQdc;      //QDC value, fractions are permitted for summable procedure
 182   ClassDef(AliRICHdigit,1) //RICH digit class
 183 };//class AliRICHdigit
 184 //__________________________________________________________________________________________________
 185 AliRICHdigit::AliRICHdigit(Int_t iC,Int_t iPadX,Int_t iPadY,Double_t q,Int_t iT0,Int_t iT1,Int_t iT2)
 186 {
 187   fPadX=iPadX;fPadY=iPadY;fQdc=q;
 188   fChamber=10*iC+AliRICHParam::Pad2Sec(iPadX,iPadY);
 189   fTracks[0]=iT0;fTracks[1]=iT1;fTracks[2]=iT2;
 190 }
 191 //__________________________________________________________________________________________________
 192 Int_t AliRICHdigit::Compare(const TObject *pObj)const
 193 {
 194   if(Id()==((AliRICHdigit*)pObj)->Id())
 195     return 0;
 196   else if(Id()>((AliRICHdigit*)pObj)->Id())
 197     return 1;
 198   else
 199     return -1;
 200 }
 201 //__________________AliRICHcluster__________________________________________________________________
 202 //__________________________________________________________________________________________________
 203
 204 enum ClusterStatus {kOK,kEdge,kShape,kSize,kRaw};
 205
 206 //__________________________________________________________________________________________________
 207 class AliRICHcluster :public TObject
 208 {
 209 public:
 210            AliRICHcluster()                                     {fSize=fQdc=fStatus=fChamber=fDimXY=kBad;fX=fY=kBad;fDigits=0;}
 211   virtual ~AliRICHcluster() {delete fDigits;}
 212          Int_t      Size()                                      const{return fSize;}                       //
 213          Int_t      DimXY()                                     const{return fDimXY;}                      //
 214          Int_t      C()                                         const{return fChamber/10;}                 //
 215          Int_t      S()                                         const{return fChamber-(fChamber/10)*10;}   //
 216          Int_t      Chamber()                                   const{return C();}                         //
 217          Int_t      Sector()                                    const{return S();}                         //
 218          Int_t      Q()                                         const{return fQdc;}                        //
 219          Double_t   X()                                         const{return fX;}                          //
 220          Double_t   Y()                                         const{return fY;}                          //
 221          Int_t      Status()                                    const{return fStatus;}                     //
 222          void       SetStatus(Int_t status)                          {fStatus=status;}                     //
 223          TObjArray* Digits()                                    const{return fDigits;}                     //
 224          void       Print(Option_t *option="")const;                                                       //virtual
 225   inline void       AddDigit(AliRICHdigit *pDig);                                                          //
 226   inline void       CoG();                                                                                 //
 227          void       Reset() {fSize=fQdc=fStatus=fChamber=fDimXY=kBad;fX=fY=kBad;delete fDigits;fDigits=0;} //                                                                               //
 228 protected:
 229   Int_t         fSize;        //how many digits belong to this cluster
 230   Int_t         fDimXY;       //100*xdim+ydim box containing the cluster
 231   Int_t         fQdc;         //QDC value
 232   Int_t         fChamber;     //10*module number+sector number
 233   Double_t      fX;           //local x postion
 234   Double_t      fY;           //local y postion
 235   Int_t         fStatus;      //flag to mark the quality of the cluster
 236   TObjArray    *fDigits;      //! list of digits forming this cluster
 237   ClassDef(AliRICHcluster,1)  //RICH cluster class
 238 };//class AliRICHcluster
 239 //__________________________________________________________________________________________________
 240 void AliRICHcluster::AddDigit(AliRICHdigit *pDig)
 241 {//
 242   if(!fDigits) {fQdc=fSize=0;fDigits = new TObjArray;}
 243   fQdc+=(Int_t)pDig->Q(); fDigits->Add(pDig);
 244   fChamber=10*pDig->C()+pDig->S();
 245   fSize++;
 246 }
 247 //__________________________________________________________________________________________________
 248 void AliRICHcluster::CoG()
 249 {//
 250   Int_t xmin=999,ymin=999,xmax=0,ymax=0;
 251   Double_t x,y;
 252   fX=fY=0;
 253   for(Int_t iDig=0;iDig<Size();iDig++) {
 254     AliRICHdigit *pDig=(AliRICHdigit*)fDigits->At(iDig);
 255     Int_t padX = pDig->X();Int_t padY = pDig->Y();Double_t q=pDig->Q();
 256     AliRICHParam::Pad2Loc(padX,padY,x,y);
 257     fX += x*q;fY +=y*q;
 258     if(padX<xmin)xmin=padX;if(padX>xmax)xmax=padX;if(padY<ymin)ymin=padY;if(padY>ymax)ymax=padY;
 259    }
 260    fX/=fQdc;fY/=fQdc;//Center of Gravity
 261    fDimXY = 100*(xmax-xmin+1)+ymax-ymin+1;//find box containing cluster
 262    fStatus=kRaw;
 263 }//CoG()
 264 //__________________AliRICH_________________________________________________________________________
 265 //__________________________________________________________________________________________________
 266 //__________________________________________________________________________________________________
 267 class AliRICHParam;
 268 class AliRICHSDigit;
 269
 270 class AliRICH : public AliDetector
 271 {
 272 public:
 273             AliRICH();
 274             AliRICH(const char *name, const char *title);
 275             AliRICH(const AliRICH& RICH):AliDetector(RICH) {;}
 276   virtual  ~AliRICH();
 277
 278   AliRICH&  operator=(const AliRICH&)                 {return *this;}
 279   virtual Int_t   IsVersion()                                            const =0;
 280           void    Hits2SDigits();                                                                                 //virtual
 281           void    SDigits2Digits();                                                                               //virtual
 282           void    Digits2Reco();                                                                                  //virtual
 283
 284   inline  void    CreateHits();
 285   inline  void    CreateSDigits();
 286   inline  void    CreateDigits();
 287   inline  void    CreateClusters();
 288   inline  void    AddHit(Int_t track, Int_t *vol, Float_t *hits);                                                 //virtual
 289   inline  void    AddSDigit(Int_t iC,Int_t iX,Int_t iY,Double_t q,Int_t iT0,Int_t iT1=kBad,Int_t iT2=kBad);
 290   inline  void    AddDigit (Int_t iC,Int_t iX,Int_t iY,Int_t iQ,Int_t iT0,Int_t iT1=kBad,Int_t iT2=kBad);
 291   inline  void    AddCluster(AliRICHcluster &clus);
 292           void    ResetHits()     {AliDetector::ResetHits();fNcerenkovs=0;if(fCerenkovs)fCerenkovs->Clear();fNspecials=0;if(fSpecials)fSpecials->Clear();}  //virtual
 293           void    ResetSDigits()  {fNsdigits=0;  if(fSdigits)  fSdigits ->Clear();}
 294           void    ResetDigits()   {if(fDigitsNew)for(int i=0;i<kNCH;i++){fDigitsNew->At(i)->Clear();fNdigitsNew[i]=0;}}
 295           void    ResetClusters() {if(fClusters) for(int i=0;i<kNCH;i++){fClusters ->At(i)->Clear();fNclusters[i]=0;}}
 296                   //Hits provided by AliDetector
 297   TClonesArray*   SDigits()             const{return fSdigits;}
 298   TClonesArray*   Digits(Int_t iC)      const{if(fDigitsNew) return (TClonesArray *)fDigitsNew->At(iC-1);else return 0;}
 299   TClonesArray*   Clusters(Int_t iC)    const{if(fClusters)  return (TClonesArray *)fClusters->At(iC-1);else return 0;}
 300
 301   AliRICHChamber* C(Int_t iC)           const{return (AliRICHChamber*)fChambers->At(iC-1);}
 302   AliRICHParam*   Param()               const{return fpParam;}
 303
 304   //  AliRICHhit*     FirstHit(Int_t iTrkN)      {return (AliRICHhit*)AliDetector::FirstHit(iTrkN);}                   //virtual
 305   //  AliRICHhit*     NextHit()                  {return (AliRICHhit*)AliDetector::NextHit();}                         //virtual
 306
 307           void    CreateChambers();
 308           void    CreateMaterials(); //virtual
 309   virtual void    BuildGeometry();   //virtual
 310   virtual void    CreateGeometry();  //virtual
 311           Float_t AbsoCH4(Float_t x);
 312           Float_t Fresnel(Float_t ene,Float_t pdoti, Bool_t pola);
 313
 314   virtual void    StepManager()=0;
 315           void    GenerateFeedbacks(Int_t iChamber,Float_t eloss);
 316           void    Print(Option_t *option)const;//virtual
 317           void    MakeBranch(Option_t *opt=" ");
 318           void    SetTreeAddress();//virtual
 319 // OLD staff OLD staff
 320   inline  void    AddCerenkov(Int_t track, Int_t *vol, Float_t *cerenkovs);
 321   inline  void    AddSpecialOld(Int_t *);
 322
 323   inline  void    CreateCerenkovsOld();
 324   inline  void    CreateSpecialsOld();
 325           void    ResetSpecialsOld(){fNspecials=0; if(fSpecials) fSpecials->Clear();}
 326   TClonesArray*   Specials()            const{return fSpecials;}
 327   TClonesArray*   Cerenkovs()           const{return fCerenkovs;}
 328
 329
 330
 331   AliRICHChamber& Chamber(Int_t id)      {return *((AliRICHChamber *) (*fChambers)[id]);}
 332 //          Int_t DistancetoPrimitive(Int_t /*px*/, Int_t /*py*/)      {return 9999;}
 333
 334 protected:
 335   AliRICHParam         *fpParam;             //main RICH parametrization
 336   TObjArray            *fChambers;           //list of RICH chambers
 337                 //fHits and fDigits belong to AliDetector
 338   TClonesArray         *fSdigits;            //! List of sdigits
 339   Int_t                 fNsdigits;           //! Current number of sdigits
 340   TObjArray            *fDigitsNew;          //! Each chamber holds it's one lists of digits
 341   Int_t                 fNdigitsNew[kNCH];   //! Array of current numbers of digits
 342   TObjArray            *fClusters;           //! Each chamber holds it's one lists of clusters
 343   Int_t                 fNclusters[kNCH];    //! Array of current numbers of raw clusters
 344
 345   TClonesArray         *fCerenkovs;          //! ??? List of cerenkovs
 346   Int_t                 fNcerenkovs;         //! ??? Current number of cerenkovs
 347   TClonesArray         *fSpecials;           //! ??? List of specials
 348   Int_t                 fNspecials;          //! ??? Current number of specials
 349   Int_t fCkovNumber;                         // Number of Cerenkov photons
 350   Int_t fFreonProd;                          // Cerenkovs produced in freon
 351   Int_t fFeedbacks;                          // Number of feedback photons
 352
 353   ClassDef(AliRICH,4)                        //Main RICH class
 354 };//class AliRICH
 355 //__________________________________________________________________________________________________
 356 void AliRICH::AddHit(Int_t track, Int_t *vol, Float_t *hits)
 357 {//Adds the current hit to the RICH hits list
 358   TClonesArray &tmp=*fHits;
 359   new(tmp[fNhits++])AliRICHhit(fIshunt,track,vol,hits);
 360 }
 361 //__________________________________________________________________________________________________
 362 void AliRICH::AddSDigit(Int_t iC,Int_t iX,Int_t iY,Double_t q,Int_t iT0,Int_t iT1,Int_t iT2)
 363 {//Adds the current Sdigit to the RICH list of Sdigits
 364   TClonesArray &tmp=*fSdigits;
 365   new(tmp[fNsdigits++])AliRICHdigit(iC,iX,iY,q,iT0,iT1,iT2);
 366 }
 367 //__________________________________________________________________________________________________
 368 void AliRICH::AddDigit(Int_t iC,Int_t iX,Int_t iY,Int_t iAdc,Int_t iT0,Int_t iT1,Int_t iT2)
 369 {//Adds the current digit to the corresponding RICH list of digits (individual list per chamber)
 370   TClonesArray &tmp=*((TClonesArray*)fDigitsNew->At(iC-1));
 371   new(tmp[fNdigitsNew[iC-1]++]) AliRICHdigit(iC,iX,iY,iAdc,iT0,iT1,iT2);
 372 }
 373 //__________________________________________________________________________________________________
 374 void AliRICH::AddCluster(AliRICHcluster &cluster)
 375 {//Adds the current cluster to the corresponding RICH list of clusters (individual list per chamber)
 376   cluster.Print();
 377   TClonesArray &tmp=*((TClonesArray*)fClusters->At(cluster.Chamber()-1));
 378   new(tmp[fNclusters[cluster.Chamber()-1]++]) AliRICHcluster(cluster);
 379 }
 380 //__________________________________________________________________________________________________
 381 void AliRICH::CreateHits()
 382 {
 383   if(fHits) return;
 384   if(GetDebug())Info("CreateHits","creating hits container.");
 385   fHits=new TClonesArray("AliRICHhit",10000);   fNhits=0;
 386 }
 387 //__________________________________________________________________________________________________
 388 void AliRICH::CreateSDigits()
 389 {
 390   if(fSdigits) return;
 391   if(GetDebug())Info("CreateSDigits","creating sdigits container.");
 392   fSdigits=new TClonesArray("AliRICHdigit",10000); fNsdigits=0;
 393 }
 394 //__________________________________________________________________________________________________
 395 void AliRICH::CreateDigits()
 396 {
 397   if(fDigitsNew) return;
 398   if(GetDebug())Info("CreateDigits","creating digits containers.");
 399   fDigitsNew = new TObjArray(kNCH);
 400   for(Int_t i=0;i<kNCH;i++) {fDigitsNew->AddAt(new TClonesArray("AliRICHdigit",10000), i); fNdigitsNew[i]=0;}
 401 }
 402 //__________________________________________________________________________________________________
 403 void AliRICH::CreateClusters()
 404 {
 405   if(fClusters) return;
 406   if(GetDebug())Info("CreateClusters","creating clusters containers.");
 407   fClusters = new TObjArray(kNCH);
 408   for(Int_t i=0;i<kNCH;i++) {fClusters->AddAt(new TClonesArray("AliRICHcluster",10000), i); fNclusters[i]=0;}
 409 }
 410
 411
 412
 413 //__________________________________________________________________________________________________
 414 void AliRICH::CreateCerenkovsOld()
 415 {
 416   if(fCerenkovs) return;
 417   if(GetDebug())Info("CreateCerenkovs","creating cerenkovs container.");
 418   fCerenkovs=new TClonesArray("AliRICHCerenkov",10000);   fNcerenkovs=0;
 419 }
 420 //__________________________________________________________________________________________________
 421 void AliRICH::CreateSpecialsOld()
 422 {
 423   if(fSpecials) return;
 424   if(GetDebug())Info("CreateSpecialsOld","creating SDigits special container.");
 425   fSpecials=new TClonesArray("AliRICHSDigit",100000); fNspecials=0;
 426 }
 427 //__________________________________________________________________________________________________
 428 void AliRICH::AddCerenkov(Int_t track, Int_t *vol, Float_t *cerenkovs)
 429 {//Adds the current RICH cerenkov hit to the Cerenkovs list
 430   TClonesArray &tmp=*fCerenkovs;
 431   new(tmp[fNcerenkovs++]) AliRICHCerenkov(fIshunt,track,vol,cerenkovs);
 432 }
 433 //__________________________________________________________________________________________________
 434 void AliRICH::AddSpecialOld(Int_t *aiSDigit)
 435 {// Adds the current Sdigit to the RICH list of Specials
 436   TClonesArray &lSDigits = *fSpecials;
 437   new(lSDigits[fNspecials++]) AliRICHSDigit(aiSDigit);
 438 }
 439 #endif//#ifndef AliRICH_h