#include <TTask.h> //base class
#include <TVector3.h> //fields
-class TClonesArray;
+class TClonesArray; //CkovAngle()
+class AliESDtrack; //CkovAngle()
+
class AliHMPIDRecon : public TTask
{
public :
AliHMPIDRecon();
virtual ~AliHMPIDRecon() {}
-
- Double_t CkovAngle (TClonesArray *pCluLst,Int_t &iNaccepted); //reconstructed Theta Cerenkov
- Double_t CkovSigma2 ( )const{ return fCkovSigma2;} //track ckov angle error squared
- Double_t FindPhotCkov (Double_t cluX,Double_t cluY ); //find ckov angle for single photon candidate
- Double_t FindPhotPhi (Double_t cluX,Double_t cluY ); //find phi angle for single photon candidate
+
+ void CkovAngle (AliESDtrack *pTrk,TClonesArray *pCluLst,Double_t nmean, Double_t qthre); //reconstructed Theta Cerenkov
+ Bool_t FindPhotCkov (Double_t cluX,Double_t cluY,Double_t &thetaCer,Double_t &phiCer ); //find ckov angle for single photon candidate
Double_t FindRingCkov (Int_t iNclus ); //best ckov for ring formed by found photon candidates
- Double_t FindRingArea (Double_t ckov )const;//estimated area of ring in cm^2
+ Double_t FindRingArea (Double_t ckovAngMin,Double_t ckovAngMax )const;//estimated area of delta ring in cm^2 to weight Hough Transform
Int_t FlagPhot (Double_t ckov ); //is photon ckov near most probable track ckov
Double_t HoughResponse( ); //most probable track ckov angle
- void Propagate (const TVector3 &dir, TVector3 &pos,Double_t z )const;//propagate photon alogn the line
+ void Propagate (const TVector3 dir, TVector3 &pos,Double_t z )const;//propagate photon alogn the line
void Refract ( TVector3 &dir, Double_t n1, Double_t n2)const;//refract photon on the boundary
- Double_t TracePhot (Double_t ckovTh,Double_t ckovPh,TVector2 &pos )const;//trace photon created by track to PC
- void SetTrack (Double_t th,Double_t ph,Double_t x,Double_t y ){fTrkDir.SetMagThetaPhi(1,th,ph); fTrkPos.Set(x,y);}//set track
+ TVector2 TracePhot (Double_t ckovTh,Double_t ckovPh )const;//trace photon created by track to PC
+ TVector2 TraceForward (TVector3 dirCkov )const;//tracing forward a photon from (x,y) to PC
+ void RecPhot (TVector3 dirCkov,Double_t &thetaCer,Double_t &phiCer ); //theta,phi cerenkov reconstructed
+ void SetTrack (Double_t xRad,Double_t yRad,Double_t theta,Double_t phi )
+ {fTrkDir.SetMagThetaPhi(1,theta,phi); fTrkPos.Set(xRad,yRad);} //set track parameter at RAD
+ void SetImpPC (Double_t xPc,Double_t yPc )
+ {fPc.Set(xPc,yPc);} //set track impact to PC
Double_t SigLoc (Double_t ckovTh,Double_t ckovPh,Double_t beta )const;//error due to cathode segmetation
Double_t SigGeom (Double_t ckovTh,Double_t ckovPh,Double_t beta )const;//error due to unknown photon origin
Double_t SigCrom (Double_t ckovTh,Double_t ckovPh,Double_t beta )const;//error due to unknonw photon energy
- Double_t Sigma2 (Double_t ckovTh,Double_t ckovPh )const;//photon candidate sigma
-
- static void Display ( ); //event display
-
-
+ Double_t Sigma2 (Double_t ckovTh,Double_t ckovPh )const;//photon candidate sigma^2
+ enum ETrackingFlags {kMipDistCut=-9,kMipQdcCut=-5,kNoPhotAccept=-11};
+// HTA hidden track algorithm
+ Bool_t CkovHiddenTrk (AliESDtrack *pTrk,TClonesArray *pCluLst,Double_t nmean,Double_t qthre);//Pattern recognition without trackinf information
+ Bool_t CluPreFilter (TClonesArray *pClu ); //Pre clustering filter to cut bkg clusters
+ Bool_t DoRecHiddenTrk (TClonesArray *pClu ); //Calling to the fitted procedures
+ Bool_t FitEllipse (Double_t &phiRec ); //Fit clusters with a conical section (kTRUE only for ellipses)
+ Bool_t FitFree (Double_t phiRec ); //Fit (th,ph) of the track and ckovFit as result
+ Double_t FunConSect (Double_t *c,Double_t x,Double_t y ); //Function of a general conical section
+ void SetNClu (Int_t nclu ) {fNClu=nclu;} //Setter for # of clusters
+ void SetClCk (Int_t i,Bool_t what ) {fClCk[i]=what;} //Setter for cluster flags
+ void SetCkovFit (Double_t ckov ) {fCkovFit=ckov;} //Setter for ckov fitted
+ void SetCkovSig2 (Double_t rms ) {fCkovSig2=rms;} //Setter for sigma2 ckov fitted
+ void SetTrkFit (Double_t th,Double_t ph ) {fThTrkFit = th;fPhTrkFit = ph;}//Setter for (th,ph) of the track
+ void SetRadXY (Double_t x,Double_t y ) {fRadX = x;fRadY = y;} //Setter for (th,ph) of the track
+ static void FunMinEl (Int_t&/* */,Double_t* /* */,Double_t &f,Double_t *par,Int_t /* */); //Fit function to find ellipes parameters
+ static void FunMinPhot(Int_t&/* */,Double_t* /* */,Double_t &f,Double_t *par,Int_t iflag); //Fit function to minimize thetaCer RMS/Sqrt(n) of n clusters
+ Int_t IdxMip ()const {return fIdxMip;} //Getter index of MIP
+ Double_t MipX ()const {return fMipX;} //Getter of x MIP in LORS
+ Double_t MipY ()const {return fMipY;} //Getter of y MIP in LORS
+ Double_t MipQ ()const {return fMipQ;} //Getter of Q MIP
+ Double_t RadX ()const {return fRadX;} //Getter of x at RAD in LORS
+ Double_t RadY ()const {return fRadY;} //Getter of y at RAD in LORS
+ Int_t NClu ()const {return fNClu;} //Getter of cluster multiplicity
+ Double_t XClu (Int_t i)const {return fXClu[i];} //Getter of x clu
+ Double_t YClu (Int_t i)const {return fYClu[i];} //Getter of y clu
+ Bool_t ClCk (Int_t i)const {return fClCk[i];} //Getter of cluster flags
+ Double_t CkovFit ()const {return fCkovFit;} //Getter of ckov angle fitted
+ Double_t ThTrkFit ()const {return fThTrkFit;} //Getter of theta fitted of the track
+ Double_t PhTrkFit ()const {return fPhTrkFit;} //Getter of phi fitted of the track
+//
protected:
- static const Double_t fgkRadThick; //radiator thickness
- static const Double_t fgkWinThick; //window thickness
- static const Double_t fgkGapThick; //proximity gap thickness
- static const Double_t fgkRadIdx; //mean refractive index of RAD material (C6F14)
- static const Double_t fgkWinIdx; //mean refractive index of WIN material (SiO2)
- static const Double_t fgkGapIdx; //mean refractive index of GAP material (CH4)
+ Double_t fRadNmean; //C6F14 mean refractive index
Int_t fPhotCnt; // counter of photons candidate
Int_t fPhotFlag[3000]; // flags of photon candidates
Double_t fPhotCkov[3000]; // Ckov angles of photon candidates, [rad]
Double_t fPhotWei [3000]; // weigths of photon candidates
Double_t fCkovSigma2; // sigma2 of the reconstructed ring
- Bool_t fIsWEIGHT; // flag to consider weight procedure
- Float_t fDTheta; // Step for sliding window
- Float_t fWindowWidth; // Hough width of sliding window
+ Bool_t fIsWEIGHT; // flag to consider weight procedure
+ Float_t fDTheta; // Step for sliding window
+ Float_t fWindowWidth; // Hough width of sliding window
- TVector3 fTrkDir; //track direction in LORS
- TVector2 fTrkPos; //track positon in LORS at the middle of radiator
+ TVector3 fTrkDir; //track direction in LORS at RAD
+ TVector2 fTrkPos; //track positon in LORS at RAD
+ TVector2 fPc; //track position at PC
+// HTA hidden track algorithm
+ Double_t fMipX; //mip X position for Hidden Track Algorithm
+ Double_t fMipY; //mip Y position for Hidden Track Algorithm
+ Double_t fMipQ; //mip Q for Hidden Track Algorithm
+ Double_t fRadX; //rad X position for Hidden Track Algorithm
+ Double_t fRadY; //rad Y position for Hidden Track Algorithm
+ Int_t fIdxMip; //mip index in the clus list
+ Int_t fNClu; //n clusters to fit
+ Double_t fXClu[100]; //container for x clus position
+ Double_t fYClu[100]; //container for y clus position
+ Bool_t fClCk[100]; //flag if cluster is used in fitting
+ Double_t fThTrkFit; //theta fitted of the track
+ Double_t fPhTrkFit; //phi fitted of the track
+ Double_t fCkovFit; //estimated ring Cherenkov angle
+ Double_t fCkovSig2; //estimated error^2 on ring Cherenkov angle
+//
+private:
+ static const Double_t fgkRadThick; //radiator thickness
+ static const Double_t fgkWinThick; //window thickness
+ static const Double_t fgkGapThick; //proximity gap thickness
+ static const Double_t fgkWinIdx; //mean refractive index of WIN material (SiO2)
+ static const Double_t fgkGapIdx; //mean refractive index of GAP material (CH4)
+
ClassDef(AliHMPIDRecon,0)
};
-typedef AliHMPIDRecon AliRICHRecon; // for backward compatibility
-
#endif // #ifdef AliHMPIDRecon_cxx
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff