#define AliHMPIDHit_h
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
-
+//.
+// HMPID base class to produce hits
+//.
+//.
#include <AliHit.h> //base class
#include <TVector3.h> //ctor
-#include <TRandom.h> //QdcTot()
#include "AliHMPIDDigit.h" //QdcTot()
+#include <TRandom.h>
+
class AliHMPIDHit : public AliHit // TObject-AliHit-AliHMPIDHit
{
public:
- AliHMPIDHit( ):AliHit( ),fCh(-1),fPid(-1 ),fQ(-1),fLx(0),fLy(0){} //default ctor
- AliHMPIDHit(Int_t c,Float_t &e,Int_t pid,Int_t tid,Float_t x,Float_t y,const TVector3 &p):AliHit(0,tid),fCh(c ),fPid(pid),fQ(0 ),fLx(x),fLy(y){e=QdcTot(e);fX=p.X();fY=p.Y();fZ=p.Z();}
- AliHMPIDHit(Int_t c,Float_t &e,Int_t pid,Int_t tid,Float_t x,Float_t y ):AliHit( ),fCh(c ),fPid(pid),fQ(0 ),fLx(x),fLy(y){e=QdcTot(e);fTrack=tid;}//manual ctor
- AliHMPIDHit(const AliHMPIDHit &h):AliHit(h),fCh(h.fCh),fPid(h.fPid),fQ(h.fQ),fLx(h.fLx),fLy(h.fLy) {}//copy ctor
- virtual ~AliHMPIDHit() {}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDHit():
+ AliHit(),
+ fCh(-1),
+ fPid(-1),
+ fQ(-1),
+ fLx(0),
+ fLy(0),
+ fT(0)
+ {} //default ctor
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDHit(Int_t c,Float_t &e,Int_t pid,Int_t tid,Float_t x,Float_t y, Float_t time, const TVector3 &p):
+ AliHit(0,tid),
+ fCh(c),
+ fPid(pid),
+ fQ(0 ),
+ fLx(x),
+ fLy(y),
+ fT(time)
+ {e=QdcTot(e,time);fX=p.X();fY=p.Y();fZ=p.Z();}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDHit(Int_t c,Float_t &e,Int_t pid,Int_t tid,Float_t x,Float_t y, Float_t time):
+ AliHit(),
+ fCh(c),
+ fPid(pid),
+ fQ(0),
+ fLx(x),
+ fLy(y),
+ fT(time)
+ {e=QdcTot(e,time);fTrack=tid;}//manual ctor
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDHit& operator=(const AliHMPIDHit& h)
+{
+ //
+ // Assignment operator
+ //
+ if(this!=&h){
+ AliHit::operator=(h);
+ fCh = h.fCh;
+ fPid = h.fPid;
+ fQ = h.fQ;
+ fLx = h.fLx;
+ fLy = h.fLy;
+ fT = h.fT;
+ }
+ return *this;
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+AliHMPIDHit(const AliHMPIDHit &h):
+ AliHit(h),
+ fCh(h.fCh),
+ fPid(h.fPid),
+ fQ(h.fQ),
+ fLx(h.fLx),
+ fLy(h.fLy),
+ fT(h.fT)
+ {}//copy ctor
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+virtual ~AliHMPIDHit() {}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//framework part
void Print(Option_t *opt="")const; //from TObject to print current status
void Draw (Option_t *opt=""); //from TObject to Draw this hit
void Hit2Sdi(TClonesArray *pSdiLst,Int_t n=1)const; //add sdigits of this hit to the list
Float_t LorsX ( )const{return fLx; } //hit X position in LORS, [cm]
Float_t LorsY ( )const{return fLy; } //hit Y position in LORS, [cm]
+ Float_t HitTime( )const{return fT; } //hit formation time, [sec]
Int_t Pid ( )const{return fPid; } //PID
Float_t Q ( )const{return fQ; } //total charge, [QDC]
- inline Float_t QdcTot (Float_t e ); //calculate total charge of the hit
+ inline Float_t QdcTot (Float_t e, Float_t time ); //calculate total charge of the hit
Int_t Tid ( )const{return fTrack; } //TID
void SetQ (Float_t q ) {fQ=q; } //for debugging...
protected: //AliHit has fTrack,fX,fY,fZ
Float_t fQ; //total charge [QDC]
Float_t fLx; //hit X position in chamber LORS, [cm]
Float_t fLy; //hit Y position in chamber LORS, [cm]
+ Float_t fT; //hit formation time, [sec]
ClassDef(AliHMPIDHit,5) //HMPID hit class
};//class AliHMPIDhit
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Float_t AliHMPIDHit::QdcTot(Float_t e)
+Float_t AliHMPIDHit::QdcTot(Float_t e, Float_t time)
{
// Samples total charge of the hit
// Arguments: e- hit energy [GeV] for mip Eloss for photon Etot
// Returns: total QDC
Int_t pc,px,py;
- AliHMPIDDigit::Lors2Pad(fLx,fLy,pc,px,py);
- Float_t y=AliHMPIDDigit::LorsY(pc,py);
+ AliHMPIDParam::Lors2Pad(fLx,fLy,pc,px,py);
+ if(py<0) fQ=0;
+ else {
+ Float_t y=AliHMPIDParam::LorsY(pc,py);
fLy=((y-fLy)>0)?y-0.2:y+0.2; //shift to the nearest anod wire
Float_t x=(fLx > 66.6)? fLx-66.6:fLx; //sagita is for PC (0-64) and not for chamber
Float_t qdcEle=34.06311+0.2337070*x+5.807476e-3*x*x-2.956471e-04*x*x*x+2.310001e-06*x*x*x*x; //reparametrised from DiMauro
- Int_t iNele=Int_t(e/26e-9); if(iNele<1) iNele=1; //number of electrons created by hit
+ Int_t iNele=Int_t(e/26e-9); if(iNele<1) iNele = 1; //number of electrons created by hit, if photon e=0 implies iNele=1
fQ=0;
for(Int_t i=1;i<=iNele;i++){
Double_t rnd=gRandom->Rndm(); if(rnd==0) rnd=1e-12; //1e-12 is a protection against 0 from rndm
fQ-=qdcEle*TMath::Log(rnd);
}
+ }
+ if(time>1.2e-6) fQ=0;
+
return fQ;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++