for(Int_t i=0;i<nPads;i++){ //loop on all pads of the cluster
for(Int_t j=0;j<iNshape;j++){ //Mathiesons loop as all of them may contribute to this pad
Double_t fracMathi = pClu->Dig(i)->IntMathieson(par[3*j],par[3*j+1]);
- derivPart[3*j ][i] += par[3*j+2]*(pClu->Dig(i)->Mathieson(par[3*j]-pClu->Dig(i)->LorsX()-0.5*AliHMPIDParam::SizePadX())-
- pClu->Dig(i)->Mathieson(par[3*j]-pClu->Dig(i)->LorsX()+0.5*AliHMPIDParam::SizePadX()))*
- pClu->Dig(i)->IntPartMathi(par[3*j+1],2);
- derivPart[3*j+1][i] += par[3*j+2]*(pClu->Dig(i)->Mathieson(par[3*j+1]-pClu->Dig(i)->LorsY()-0.5*AliHMPIDParam::SizePadY())-
- pClu->Dig(i)->Mathieson(par[3*j+1]-pClu->Dig(i)->LorsY()+0.5*AliHMPIDParam::SizePadY()))*
- pClu->Dig(i)->IntPartMathi(par[3*j],1);
+ derivPart[3*j ][i] += par[3*j+2]*(pClu->Dig(i)->MathiesonX(par[3*j]-pClu->Dig(i)->LorsX()-0.5*AliHMPIDParam::SizePadX())-
+ pClu->Dig(i)->MathiesonX(par[3*j]-pClu->Dig(i)->LorsX()+0.5*AliHMPIDParam::SizePadX()))*
+ pClu->Dig(i)->IntPartMathiY(par[3*j+1]);
+ derivPart[3*j+1][i] += par[3*j+2]*(pClu->Dig(i)->MathiesonY(par[3*j+1]-pClu->Dig(i)->LorsY()-0.5*AliHMPIDParam::SizePadY())-
+ pClu->Dig(i)->MathiesonY(par[3*j+1]-pClu->Dig(i)->LorsY()+0.5*AliHMPIDParam::SizePadY()))*
+ pClu->Dig(i)->IntPartMathiX(par[3*j]);
derivPart[3*j+2][i] += fracMathi;
}
}
Float_t LorsY ( )const{return AliHMPIDParam::LorsY(AliHMPIDParam::A2P(fPad),AliHMPIDParam::A2Y(fPad)); } //center of the pad y, [cm]
//
- inline Float_t Mathieson (Float_t x )const; //Mathieson distribution
- inline Float_t IntPartMathi(Float_t z, Int_t axis )const; //integral in 1-dim of Mathieson
- inline Float_t IntMathieson(Float_t x,Float_t y )const; //integral in 2-dim of Mathieson
+ inline Double_t MathiesonX (Double_t x )const; //Mathieson distribution along wires X
+ inline Double_t MathiesonY (Double_t x )const; //Mathieson distribution perp to wires Y
+ inline Double_t IntPartMathiX(Double_t z )const; //integral in 1-dim of Mathieson X
+ inline Double_t IntPartMathiY(Double_t z )const; //integral in 1-dim of Mathieson Y
+ inline Double_t IntMathieson (Double_t x,Double_t y )const; //integral in 2-dim of Mathieson
Int_t PadPcX ( )const{return AliHMPIDParam::A2X(fPad);} //pad pc x # 0..79
Int_t PadPcY ( )const{return AliHMPIDParam::A2Y(fPad);} //pad pc y # 0..47
Int_t PadChX ( )const{return (Pc()%2)*AliHMPIDParam::kPadPcX+PadPcX();} //pad ch x # 0..159
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Float_t AliHMPIDDigit::Mathieson(Float_t x)const
+Double_t AliHMPIDDigit::MathiesonX(Double_t x)const
{
// Mathieson function.
// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
// Arguments: x- position of the center of Mathieson distribution
// Returns: value of the Mathieson function
- Float_t kK1=0.28278795,kK2=0.96242952, kSqrtK3 =0.77459667, kD=0.445;
- Float_t lambda = x/kD;
- Float_t a=1-TMath::TanH(kK2*lambda)*TMath::TanH(kK2*lambda);
- Float_t b=1+kSqrtK3*kSqrtK3*TMath::TanH(kK2*lambda)*TMath::TanH(kK2*lambda);
- Float_t mathi = kK1*a/b;
+
+ Double_t lambda = x/AliHMPIDParam::PitchAnodeCathode();
+ Double_t tanh = TMath::TanH(AliHMPIDParam::K2x()*lambda);
+ Double_t a=1-tanh*tanh;
+ Double_t b=1+AliHMPIDParam::SqrtK3x()*AliHMPIDParam::SqrtK3x()*tanh*tanh;
+ Double_t mathi = AliHMPIDParam::K1x()*a/b;
+ return mathi;
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Double_t AliHMPIDDigit::MathiesonY(Double_t y)const
+{
+// Mathieson function.
+// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
+// Arguments: x- position of the center of Mathieson distribution
+// Returns: value of the Mathieson function
+
+ Double_t lambda = y/AliHMPIDParam::PitchAnodeCathode();
+ Double_t tanh = TMath::TanH(AliHMPIDParam::K2y()*lambda);
+ Double_t a=1-tanh*tanh;
+ Double_t b=1+AliHMPIDParam::SqrtK3y()*AliHMPIDParam::SqrtK3y()*tanh*tanh;
+ Double_t mathi = AliHMPIDParam::K1y()*a/b;
return mathi;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Float_t AliHMPIDDigit::IntPartMathi(Float_t z, Int_t axis)const
+Double_t AliHMPIDDigit::IntPartMathiX(Double_t x)const
{
// Integration of Mathieson.
// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
// Arguments: x,y- position of the center of Mathieson distribution
// Returns: a charge fraction [0-1] imposed into the pad
- Float_t shift1,shift2;
- if(axis==1) {
- shift1 = -LorsX()+0.5*AliHMPIDParam::SizePadX();
- shift2 = -LorsX()-0.5*AliHMPIDParam::SizePadX();
- } else {
- shift1 = -LorsY()+0.5*AliHMPIDParam::SizePadY();
- shift2 = -LorsY()-0.5*AliHMPIDParam::SizePadY();
- }
+ Double_t shift1 = -LorsX()+0.5*AliHMPIDParam::SizePadX();
+ Double_t shift2 = -LorsX()-0.5*AliHMPIDParam::SizePadX();
- Float_t kK2=0.96242952, kSqrtK3 =0.77459667, kK4=0.37932926, kD=0.445;
+ Double_t ux1=AliHMPIDParam::SqrtK3x()*TMath::TanH(AliHMPIDParam::K2x()*(x+shift1)/AliHMPIDParam::PitchAnodeCathode());
+ Double_t ux2=AliHMPIDParam::SqrtK3x()*TMath::TanH(AliHMPIDParam::K2x()*(x+shift2)/AliHMPIDParam::PitchAnodeCathode());
+
+ return AliHMPIDParam::K4x()*(TMath::ATan(ux2)-TMath::ATan(ux1));
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
- Float_t ux1=kSqrtK3*TMath::TanH(kK2*(z+shift1)/kD);
- Float_t ux2=kSqrtK3*TMath::TanH(kK2*(z+shift2)/kD);
+Double_t AliHMPIDDigit::IntPartMathiY(Double_t y)const
+{
+// Integration of Mathieson.
+// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
+// Arguments: x,y- position of the center of Mathieson distribution
+// Returns: a charge fraction [0-1] imposed into the pad
+ Double_t shift1 = -LorsY()+0.5*AliHMPIDParam::SizePadY();
+ Double_t shift2 = -LorsY()-0.5*AliHMPIDParam::SizePadY();
+
+ Double_t uy1=AliHMPIDParam::SqrtK3y()*TMath::TanH(AliHMPIDParam::K2y()*(y+shift1)/AliHMPIDParam::PitchAnodeCathode());
+ Double_t uy2=AliHMPIDParam::SqrtK3y()*TMath::TanH(AliHMPIDParam::K2y()*(y+shift2)/AliHMPIDParam::PitchAnodeCathode());
+
+ return AliHMPIDParam::K4y()*(TMath::ATan(uy2)-TMath::ATan(uy1));
- return kK4*(TMath::ATan(ux2)-TMath::ATan(ux1));
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Float_t AliHMPIDDigit::IntMathieson(Float_t x,Float_t y)const
+Double_t AliHMPIDDigit::IntMathieson(Double_t x,Double_t y)const
{
// Integration of Mathieson.
// This is the answer to electrostatic problem of charge distrubution in MWPC described elsewhere. (NIM A370(1988)602-603)
// Arguments: x,y- position of the center of Mathieson distribution
// Returns: a charge fraction [0-1] imposed into the pad
- Float_t xm = IntPartMathi(x,1);
- Float_t ym = IntPartMathi(y,2);
+ Double_t xm = IntPartMathiX(x);
+ Double_t ym = IntPartMathiY(y);
return 4*xm*ym;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ClassImp(AliHMPIDParam)
+// Mathieson constant definition
+const Double_t AliHMPIDParam::fgkD = 0.222500; // ANODE-CATHODE distance 0.445/2
+// K3 = 0.66 along the wires (anode-cathode/wire pitch=0.5625)
+const Double_t AliHMPIDParam::fgkSqrtK3x = TMath::Sqrt(0.66);
+const Double_t AliHMPIDParam::fgkK2x = TMath::PiOver2()*(1 - 0.5*fgkSqrtK3x);
+const Double_t AliHMPIDParam::fgkK1x = 0.25*fgkK2x*fgkSqrtK3x/TMath::ATan(fgkSqrtK3x);
+const Double_t AliHMPIDParam::fgkK4x = fgkK1x/(fgkK2x*fgkSqrtK3x);
+// K3 = 0.87 along the wires (anode-cathode/wire pitch=0.5625)
+const Double_t AliHMPIDParam::fgkSqrtK3y = TMath::Sqrt(0.87);
+const Double_t AliHMPIDParam::fgkK2y = TMath::PiOver2()*(1 - 0.5*fgkSqrtK3y);
+const Double_t AliHMPIDParam::fgkK1y = 0.25*fgkK2y*fgkSqrtK3y/TMath::ATan(fgkSqrtK3y);
+const Double_t AliHMPIDParam::fgkK4y = fgkK1y/(fgkK2y*fgkSqrtK3y);
+//
+
+
Float_t AliHMPIDParam::fgkMinPcX[]={0.,0.,0.,0.,0.,0.};
Float_t AliHMPIDParam::fgkMaxPcX[]={0.,0.,0.,0.,0.,0.};
Float_t AliHMPIDParam::fgkMinPcY[]={0.,0.,0.,0.,0.,0.};
Double_t SigGeom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknown photon origin
Double_t SigCrom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknonw photon energy
Double_t Sigma2 (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh );//photon candidate sigma^2
+
+ //Mathieson Getters
+ static Double_t PitchAnodeCathode() {return fgkD;}
+ static Double_t SqrtK3x() {return fgkSqrtK3x;}
+ static Double_t K2x () {return fgkK2x;}
+ static Double_t K1x () {return fgkK1x;}
+ static Double_t K4x () {return fgkK4x;}
+ static Double_t SqrtK3y() {return fgkSqrtK3y;}
+ static Double_t K2y () {return fgkK2y;}
+ static Double_t K1y () {return fgkK1y;}
+ static Double_t K4y () {return fgkK4y;}
+ //
enum EPlaneId {kPc,kRad,kAnod}; //3 planes in chamber
enum ETrackingFlags {kMipDistCut=-9,kMipQdcCut=-5,kNoPhotAccept=-11}; //flags for Reconstruction
static /*const*/ Float_t fgkMinPcY[6]; //limits PC
static /*const*/ Float_t fgkMaxPcX[6]; //limits PC
static /*const*/ Float_t fgkMaxPcY[6];
+
+// Mathieson constants
+// For HMPID --> x direction means parallel to the wires: K3 = 0.66 (NIM A270 (1988) 602-603) fig.1
+// For HMPID --> y direction means perpendicular to the wires: K3 = 0.90 (NIM A270 (1988) 602-603) fig.2
+//
+ static const Double_t fgkD; // ANODE-CATHODE distance 0.445/2
+
+ static const Double_t fgkSqrtK3x,fgkK2x,fgkK1x,fgkK4x;
+ static const Double_t fgkSqrtK3y,fgkK2y,fgkK1y,fgkK4y;
+//
+
static Int_t fgSigmas; //sigma Cut
static Bool_t fgInstanceType; //kTRUE if from geomatry kFALSE if from ideal geometry
fGenNprimCO->AddEntry("N prim=1" ,1);
fGenNprimCO->AddEntry("N prim=2" ,2);
fGenNprimCO->AddEntry("N prim=5" ,5);
+ fGenNprimCO->AddEntry("N prim=10" ,10);
+ fGenNprimCO->AddEntry("N prim=20" ,20);
+ fGenNprimCO->AddEntry("N prim=50" ,50);
fGenNprimCO->AddEntry("N prim=100" ,100);
fGenNprimCO->AddEntry("N prim=500" ,500);
fGenNprimCO->AddEntry("N prim=1000" ,1000);
fprintf(fp," gBenchmark->Show(\"ALICE\");\n");
fprintf(fp," gSystem->Exec(\"touch ZZZ______finished_______SSS\");\n");
- fprintf(fp," gSystem->Exec(\"aliroot rec.C\");\n}\n");
+ fprintf(fp," gSystem->Exec(\"aliroot rec.C &\");\n}\n");
fclose(fp);
char *sBatchName="rec";
FILE *fp=fopen(Form("%s.C",sBatchName),"w"); if(!fp){Info("CreateRec","Cannot open output file: %s.C",sBatchName);return;}