* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.5 2003/08/05 16:14:20 morsch
-Some problems with too big fluctuations corrected. (A. de Falco)
+/* $Id$ */
+
+//-------------------------------------------------------------------------
+// Class AliMUONFastTracking
+//
+// Manager for the fast simulation of tracking in the muon spectrometer
+// This class reads the lookup tables containing the parameterization
+// of the deltap, deltatheta, deltaphi for different background levels
+// and provides the related smeared parameters.
+// Used by AliFastMuonTrackingEff, AliFastMuonTrackingAcc,
+// AliFastMuonTrackingRes.
+//-------------------------------------------------------------------------
-Revision 1.2 2003/01/08 10:29:33 morsch
-Path to data file changed.
-
-Revision 1.1 2003/01/06 10:13:33 morsch
-First commit.
-
-*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
-#include "AliMUONFastTracking.h"
-#include "AliMUONFastTrackingEntry.h"
-#include <TMatrixD.h>
-#include <TSpline.h>
+#include <Riostream.h>
+#include <TF1.h>
#include <TFile.h>
-#include <TH1.h>
#include <TH3.h>
-#include <TF1.h>
+#include <TMath.h>
#include <TRandom.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <Riostream.h>
+#include <TSpline.h>
+
+#include "AliMUONFastTracking.h"
+#include "AliMUONFastTrackingEntry.h"
ClassImp(AliMUONFastTracking)
+
AliMUONFastTracking* AliMUONFastTracking::fgMUONFastTracking=NULL;
static Double_t FitP(Double_t *x, Double_t *par){
Double_t sigma2 = par[1] * par[5];
Double_t fgauss = TMath::Exp(-0.5 * dx2 * dx2 / (sigma2 * sigma2));
Double_t value = fasymm + par[3] * fgauss;
- return value;
+ return TMath::Abs(value);
}
+AliMUONFastTracking::AliMUONFastTracking(const AliMUONFastTracking & ft):
+ TObject(),
+ fNbinp(10),
+ fPmin(0.),
+ fPmax(200.),
+ fDeltaP((fPmax-fPmin)/fNbinp),
+ fNbintheta(10),
+ fThetamin(2.),
+ fThetamax(9.),
+ fDeltaTheta((fThetamax-fThetamin)/fNbintheta),
+ fNbinphi(10),
+ fPhimin(-180.),
+ fPhimax(180.),
+ fDeltaPhi((fPhimax-fPhimin)/fNbinphi),
+ fPrintLevel(1),
+ fBkg(0.),
+ fSpline(0),
+ fClusterFinder(kOld)
+{
+// Copy constructor
+ ft.Copy(*this);
+}
+
+
AliMUONFastTracking* AliMUONFastTracking::Instance()
{
// Set random number generator
}
}
-AliMUONFastTracking::AliMUONFastTracking()
+AliMUONFastTracking::AliMUONFastTracking():
+ fNbinp(10),
+ fPmin(0.),
+ fPmax(200.),
+ fDeltaP((fPmax-fPmin)/fNbinp),
+ fNbintheta(10),
+ fThetamin(2.),
+ fThetamax(9.),
+ fDeltaTheta((fThetamax-fThetamin)/fNbintheta),
+ fNbinphi(10),
+ fPhimin(-180.),
+ fPhimax(180.),
+ fDeltaPhi((fPhimax-fPhimin)/fNbinphi),
+ fPrintLevel(1),
+ fBkg(0.),
+ fSpline(0),
+ fClusterFinder(kOld)
{
+//
+// constructor
+//
for (Int_t i = 0; i<20;i++) {
for (Int_t j = 0; j<20; j++) {
for (Int_t k = 0; k<20; k++) {
}
}
}
-
- fClusterFinder = kOld;
- fPrintLevel = 1;
- // read binning; temporarily put by hand
- Float_t pmin = 0, pmax = 200;
- Int_t nbinp = 10;
- Float_t thetamin = 2, thetamax = 9;
- Int_t nbintheta=10;
- Float_t phimin = -180, phimax =180;
- Int_t nbinphi=10;
- //--------------------------------------
-
- fNbinp = nbinp;
- fPmin = pmin;
- fPmax = pmax;
-
- fNbintheta = nbintheta;
- fThetamin = thetamin;
- fThetamax = thetamax;
-
- fNbinphi = nbinphi;
- fPhimin = phimin;
- fPhimax = phimax;
-
- fDeltaP = (fPmax-fPmin)/fNbinp;
- fDeltaTheta = (fThetamax-fThetamin)/fNbintheta;
- fDeltaPhi = (fPhimax-fPhimin)/fNbinphi;
}
void AliMUONFastTracking::Init(Float_t bkg)
}
char filename [100];
- if (fClusterFinder==kOld) sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
- else sprintf (filename,"$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
+ if (fClusterFinder==kOld) snprintf (filename, 100, "$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT.root");
+ else snprintf (filename, 100, "$(ALICE_ROOT)/FASTSIM/data/MUONtrackLUT-AZ.root");
TFile *file = new TFile(filename);
ReadLUT(file);
void AliMUONFastTracking::ReadLUT(TFile* file)
{
+ //
+ // read the lookup tables from file
+ //
TH3F *heff[5][3], *hacc[5][3], *hmeanp, *hsigmap, *hsigma1p, *hchi2p;
TH3F *hnormg2, *hmeang2, *hsigmag2, *hmeantheta, *hsigmatheta, *hchi2theta;
TH3F *hmeanphi, *hsigmaphi, *hchi2phi;
printf ("Reading parameters from LUT file %s...\n",file->GetName());
- const Float_t bkg[4] = {0, 0.5, 1, 2};
+ const Float_t kBkg[4] = {0, 0.5, 1, 2};
for (Int_t ibkg=0; ibkg<4; ibkg++) {
- sprintf (tag,"BKG%g",bkg[ibkg]);
+ snprintf (tag, 40, "BKG%g",kBkg[ibkg]);
file->cd(tag);
for (Int_t isplp = 0; isplp<kSplitP; isplp++) {
for (Int_t ispltheta = 0; ispltheta<kSplitTheta; ispltheta++) {
- sprintf (tag2,"heff[%d][%d]",isplp,ispltheta);
+ snprintf (tag2, 40, "heff[%d][%d]",isplp,ispltheta);
heff[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2);
- sprintf (tag2,"hacc[%d][%d]",isplp,ispltheta);
+ snprintf (tag2, 40, "hacc[%d][%d]",isplp,ispltheta);
hacc[isplp][ispltheta] = (TH3F*)gDirectory->Get(tag2);
}
}
Float_t theta = fThetamin + fDeltaTheta * (itheta + 0.5);
Float_t phi = fPhimin + fDeltaPhi * (iphi + 0.5);
- fEntry[ip][itheta][iphi][ibkg]->fP = p;
- fEntry[ip][itheta][iphi][ibkg]->fMeanp =
- hmeanp->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fSigmap =
- TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1));
- fEntry[ip][itheta][iphi][ibkg]->fSigma1p =
- hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fChi2p =
- hchi2p->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fNormG2 =
- hnormg2->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fMeanG2 =
- hmeang2->GetBinContent(ip+1,itheta+1,iphi+1);
- if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 = 9999;
- else fEntry[ip][itheta][iphi][ibkg]->fSigmaG2 =
- hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fTheta = theta;
- fEntry[ip][itheta][iphi][ibkg]->fMeantheta =
- hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fSigmatheta =
- TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1));
- fEntry[ip][itheta][iphi][ibkg]->fChi2theta =
- hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fPhi = phi;
- fEntry[ip][itheta][iphi][ibkg]->fMeanphi =
- hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fSigmaphi =
- TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1));
- fEntry[ip][itheta][iphi][ibkg]->fChi2phi =
- hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1);
+ fEntry[ip][itheta][iphi][ibkg]->SetP(p);
+ fEntry[ip][itheta][iphi][ibkg]->SetMeanp(hmeanp->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetSigmap(TMath::Abs(hsigmap->GetBinContent(ip+1,itheta+1,iphi+1)));
+ fEntry[ip][itheta][iphi][ibkg]->SetSigma1p(hsigma1p->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetChi2p(hchi2p->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetNormG2(hnormg2->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetMeanG2(hmeang2->GetBinContent(ip+1,itheta+1,iphi+1));
+ if (ibkg == 0) fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(9999);
+ else fEntry[ip][itheta][iphi][ibkg]->SetSigmaG2(hsigmag2->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetTheta(theta);
+ fEntry[ip][itheta][iphi][ibkg]->SetMeantheta(hmeantheta->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetSigmatheta(TMath::Abs(hsigmatheta->GetBinContent(ip+1,itheta+1,iphi+1)));
+ fEntry[ip][itheta][iphi][ibkg]->SetChi2theta(hchi2theta->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetPhi(phi);
+ fEntry[ip][itheta][iphi][ibkg]->SetMeanphi(hmeanphi->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetSigmaphi(TMath::Abs(hsigmaphi->GetBinContent(ip+1,itheta+1,iphi+1)));
+ fEntry[ip][itheta][iphi][ibkg]->SetChi2phi(hchi2phi->GetBinContent(ip+1,itheta+1,iphi+1));
for (Int_t i=0; i<kSplitP; i++) {
for (Int_t j=0; j<kSplitTheta; j++) {
- fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j] =
- hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1);
- fEntry[ip][itheta][iphi][ibkg]->fEff[i][j] =
- heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1);
+ fEntry[ip][itheta][iphi][ibkg]->SetAcc(i,j,hacc[i][j]->GetBinContent(ip+1,itheta+1,iphi+1));
+ fEntry[ip][itheta][iphi][ibkg]->SetEff(i,j,heff[i][j]->GetBinContent(ip+1,itheta+1,iphi+1));
}
}
} // iphi
for (Int_t ip=0; ip< fNbinp; ip++){
for (Int_t itheta=0; itheta< fNbintheta; itheta++){
for (Int_t iphi=0; iphi< fNbinphi; iphi++){
- graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->fSigmaG2);
- graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->fSigmaG2);
- graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->fSigmaG2);
+ graph->SetPoint(0,0.5,fEntry[ip][itheta][iphi][1]->GetSigmaG2());
+ graph->SetPoint(1,1,fEntry[ip][itheta][iphi][2]->GetSigmaG2());
+ graph->SetPoint(2,2,fEntry[ip][itheta][iphi][3]->GetSigmaG2());
graph->Fit("f","q");
- fEntry[ip][itheta][iphi][0]->fSigmaG2 = f->Eval(0);
+ fEntry[ip][itheta][iphi][0]->SetSigmaG2(f->Eval(0));
}
}
}
void AliMUONFastTracking::GetBinning(Int_t &nbinp, Float_t &pmin, Float_t &pmax,
Int_t &nbintheta, Float_t &thetamin,
Float_t &thetamax,
- Int_t &nbinphi, Float_t &phimin, Float_t &phimax)
+ Int_t &nbinphi, Float_t &phimin, Float_t &phimax) const
{
+ //
+ // gets the binning for the discrete parametrizations in the lookup table
+ //
nbinp = fNbinp;
pmin = fPmin;
pmax = fPmax;
void AliMUONFastTracking::GetIpIthetaIphi(Float_t p, Float_t theta, Float_t phi,
Int_t charge, Int_t &ip, Int_t &itheta,
- Int_t &iphi)
+ Int_t &iphi) const
{
+ //
+ // gets the id of the cells in the LUT for a given (p,theta,phi, charge)
+ //
if (charge < 0) phi = -phi;
ip = Int_t (( p - fPmin ) / fDeltaP);
itheta = Int_t (( theta - fThetamin ) / fDeltaTheta);
}
void AliMUONFastTracking::GetSplit(Int_t ip, Int_t itheta,
- Int_t &nSplitP, Int_t &nSplitTheta) {
+ Int_t &nSplitP, Int_t &nSplitTheta) const
+{
+ //
+ // the first cell is splitted in more bins for theta and momentum
+ // parameterizations. Get the number of divisions for the splitted bins
+ //
if (ip==0) nSplitP = 5;
else nSplitP = 2;
if (itheta==0) nSplitTheta = 3;
Float_t AliMUONFastTracking::Efficiency(Float_t p, Float_t theta,
Float_t phi, Int_t charge){
+ //
+ // gets the tracking efficiency
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
Int_t nSplitP, nSplitTheta;
Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP);
Float_t dtheta = theta - fThetamin;
Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta);
- Float_t eff = fCurrentEntry[ip][itheta][iphi]->fEff[ibinp][ibintheta];
+ Float_t eff = fCurrentEntry[ip][itheta][iphi]->GetEff(ibinp,ibintheta);
return eff;
}
Float_t AliMUONFastTracking::Acceptance(Float_t p, Float_t theta,
Float_t phi, Int_t charge){
+ //
+ // gets the geometrical acceptance
+ //
if (theta<fThetamin || theta>fThetamax) return 0;
Int_t ip=0, itheta=0, iphi=0;
Int_t ibinp = Int_t(nSplitP*(dp - fDeltaP * Int_t(dp / fDeltaP))/fDeltaP);
Float_t dtheta = theta - fThetamin;
Int_t ibintheta = Int_t(nSplitTheta*(dtheta - fDeltaTheta * Int_t(dtheta / fDeltaTheta))/fDeltaTheta);
- Float_t acc = fCurrentEntry[ip][itheta][iphi]->fAcc[ibinp][ibintheta];
+ Float_t acc = fCurrentEntry[ip][itheta][iphi]->GetAcc(ibinp,ibintheta);
return acc;
}
Float_t AliMUONFastTracking::MeanP(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the mean value of the prec-pgen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
- return fCurrentEntry[ip][itheta][iphi]->fMeanp;
+ return fCurrentEntry[ip][itheta][iphi]->GetMeanp();
}
Float_t AliMUONFastTracking::SigmaP(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the width of the prec-pgen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
Int_t index;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
// central value and corrections with spline
- Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->fSigmap;
+ Float_t sigmap = fCurrentEntry[ip][itheta][iphi]->GetSigmap();
if (!fSpline) return sigmap;
// corrections vs p, theta, phi
index = iphi + fNbinphi * itheta;
Float_t frac1 = fSplineSigmap[index][0]->Eval(p)/sigmap;
if (p>fPmax-fDeltaP/2.) {
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmap;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmap;
- Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->fSigmap;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmap();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmap();
+ Float_t s3 = fCurrentEntry[fNbinp-3][itheta][iphi]->GetSigmap();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t p3 = fDeltaP * (fNbinp - 3 + 0.5) + fPmin;
}
Float_t AliMUONFastTracking::Sigma1P(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the width correction of the prec-pgen distribution (see FitP)
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
if (p>fPmax) {
// linear extrapolation of sigmap for p out of range
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigma1p;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigma1p;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigma1p();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigma1p();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
return sigma;
}
- else return fCurrentEntry[ip][itheta][iphi]->fSigma1p;
+ else return fCurrentEntry[ip][itheta][iphi]->GetSigma1p();
}
Float_t AliMUONFastTracking::NormG2(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the relative normalization of the background
+ // (gaussian) component in the prec-pgen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
if (p>fPmax) {
// linear extrapolation of sigmap for p out of range
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fNormG2;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fNormG2;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetNormG2();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetNormG2();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
return norm;
}
- else return fCurrentEntry[ip][itheta][iphi]->fNormG2;
+ else return fCurrentEntry[ip][itheta][iphi]->GetNormG2();
}
Float_t AliMUONFastTracking::MeanG2(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the mean value of the background
+ // (gaussian) component in the prec-pgen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
if (p>fPmax) {
// linear extrapolation of sigmap for p out of range
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fMeanG2;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fMeanG2;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetMeanG2();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetMeanG2();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t norm = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
return norm;
}
- else return fCurrentEntry[ip][itheta][iphi]->fMeanG2;
+ else return fCurrentEntry[ip][itheta][iphi]->GetMeanG2();
}
Float_t AliMUONFastTracking::SigmaG2(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the width of the background
+ // (gaussian) component in the prec-pgen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
if (p>fPmax) {
// linear extrapolation of sigmap for p out of range
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaG2;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaG2;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaG2();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaG2();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
return sigma;
}
- else return fCurrentEntry[ip][itheta][iphi]->fSigmaG2;
+ else return fCurrentEntry[ip][itheta][iphi]->GetSigmaG2();
}
Float_t AliMUONFastTracking::MeanTheta(Float_t p, Float_t theta,
- Float_t phi, Int_t charge)
+ Float_t phi, Int_t charge) const
{
+ //
+ // gets the mean value of the thetarec-thetagen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
- return fCurrentEntry[ip][itheta][iphi]->fMeantheta;
+ return fCurrentEntry[ip][itheta][iphi]->GetMeantheta();
}
-Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta,
- Float_t phi, Int_t charge){
+Float_t AliMUONFastTracking::SigmaTheta(Float_t p, Float_t theta,
+ Float_t phi, Int_t charge) const
+{
+ //
+ // gets the width of the thetarec-thetagen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
Int_t index;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
// central value and corrections with spline
- Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->fSigmatheta;
+ Float_t sigmatheta = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta();
if (!fSpline) return sigmatheta;
// corrections vs p, theta, phi
index = iphi + fNbinphi * itheta;
Float_t frac1 = fSplineSigmatheta[index][0]->Eval(p)/sigmatheta;
if (p>fPmax-fDeltaP/2.) {
// linear extrapolation of sigmap for p out of range
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmatheta;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmatheta;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmatheta();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmatheta();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
Float_t AliMUONFastTracking::MeanPhi(Float_t p, Float_t theta,
- Float_t phi, Int_t charge){
+ Float_t phi, Int_t charge) const
+{
+ //
+ // gets the mean value of the phirec-phigen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
- return fCurrentEntry[ip][itheta][iphi]->fMeanphi;
+ return fCurrentEntry[ip][itheta][iphi]->GetMeanphi();
}
Float_t AliMUONFastTracking::SigmaPhi(Float_t p, Float_t theta,
Float_t phi, Int_t charge){
+ //
+ // gets the width of the phirec-phigen distribution
+ //
Int_t ip=0, itheta=0, iphi=0;
Int_t index;
GetIpIthetaIphi(p,theta,phi,charge,ip,itheta,iphi);
// central value and corrections with spline
- Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->fSigmaphi;
+ Float_t sigmaphi = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi();
if (!fSpline) return sigmaphi;
// corrections vs p, theta, phi
index = iphi + fNbinphi * itheta;
Float_t frac1 = fSplineSigmaphi[index][0]->Eval(p)/sigmaphi;
Double_t xmin,ymin,xmax,ymax;
if (p>fPmax-fDeltaP/2.) {
- Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->fSigmaphi;
- Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->fSigmaphi;
+ Float_t s1 = fCurrentEntry[fNbinp-1][itheta][iphi]->GetSigmaphi();
+ Float_t s2 = fCurrentEntry[fNbinp-2][itheta][iphi]->GetSigmaphi();
Float_t p1 = fDeltaP * (fNbinp - 1 + 0.5) + fPmin;
Float_t p2 = fDeltaP * (fNbinp - 2 + 0.5) + fPmin;
Float_t sigma = 1./(p1-p2) * ( (s1-s2)*p + (s2-s1)*p1 + s1*(p1-p2) );
}
void AliMUONFastTracking::SetSpline(){
+ //
+ // sets the spline functions for a smooth behaviour of the parameters
+ // when going from one cell to another
+ //
printf ("Setting spline functions...");
char splname[40];
Double_t x[20][3];
for (Int_t itheta=0; itheta< fNbintheta; itheta++){
for (Int_t iphi=0; iphi< fNbinphi; iphi++){
for (Int_t ip=0; ip<fNbinp; ip++) {
- // for (Int_t i=0; i<5; i++) {
- // yeff[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fEff[i];
- // yacc[5 * ip + i] = fCurrentEntry[ip][itheta][iphi]->fAcc[i];
- // }
- ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmap;
- ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->fSigma1p;
- ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta;
- ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi;
+ ysigmap[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmap();
+ ysigma1p[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p();
+ ysigmatheta[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta();
+ ysigmaphi[ip] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi();
}
if (fPrintLevel>3) cout << " creating new spline " << splname << endl;
- sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar);
fSplineEff[ispline][ivar] = new TSpline3(splname,xsp2,yeff,5 * nbins[ivar]);
- sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar);
fSplineAcc[ispline][ivar] = new TSpline3(splname,xsp2,yacc,5 * nbins[ivar]);
- sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar);
fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]);
- sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar);
fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]);
- sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar);
fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]);
- sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar);
fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]);
ispline++;
}
for (Int_t iphi=0; iphi< fNbinphi; iphi++){
for (Int_t itheta=0; itheta< fNbintheta; itheta++){
// for efficiency and acceptance let's take the central value
- // yeff[itheta] = fCurrentEntry[ip][itheta][iphi]->fEff[2];
- // yacc[itheta] = fCurrentEntry[ip][itheta][iphi]->fAcc[2];
- ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmap;
- ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigma1p;
- ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta;
- ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi;
+ ysigmap[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmap();
+ ysigma1p[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p();
+ ysigmatheta[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta();
+ ysigmaphi[itheta] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi();
}
if (fPrintLevel>3) cout << " creating new spline " << splname << endl;
- sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar);
fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]);
- sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar);
fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]);
- sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar);
fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]);
- sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar);
fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]);
- sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar);
fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]);
- sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar);
fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]);
ispline++;
}
for (Int_t itheta=0; itheta< fNbintheta; itheta++){
for (Int_t iphi=0; iphi< fNbinphi; iphi++){
// for efficiency and acceptance let's take the central value
- // yeff[iphi] = fCurrentEntry[ip][itheta][iphi]->fEff[2];
- // yacc[iphi] = fCurrentEntry[ip][itheta][iphi]->fAcc[2];
- ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmap;
- ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigma1p;
- ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmatheta;
- ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->fSigmaphi;
+ ysigmap[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmap();
+ ysigma1p[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigma1p();
+ ysigmatheta[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmatheta();
+ ysigmaphi[iphi] = fCurrentEntry[ip][itheta][iphi]->GetSigmaphi();
}
if (fPrintLevel>3) cout << " creating new spline " << splname << endl;
- sprintf (splname,"fSplineEff[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineEff[%d][%d]",ispline,ivar);
fSplineEff[ispline][ivar] = new TSpline3(splname,xspl,yeff, nbins[ivar]);
- sprintf (splname,"fSplineAcc[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineAcc[%d][%d]",ispline,ivar);
fSplineAcc[ispline][ivar] = new TSpline3(splname,xspl,yacc, nbins[ivar]);
- sprintf (splname,"fSplineSigmap[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmap[%d][%d]",ispline,ivar);
fSplineSigmap[ispline][ivar] = new TSpline3(splname,xspl,ysigmap,nbins[ivar]);
- sprintf (splname,"fSplineSigma1p[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigma1p[%d][%d]",ispline,ivar);
fSplineSigma1p[ispline][ivar] = new TSpline3(splname,xspl,ysigma1p,nbins[ivar]);
- sprintf (splname,"fSplineSigmatheta[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmatheta[%d][%d]",ispline,ivar);
fSplineSigmatheta[ispline][ivar] = new TSpline3(splname,xspl,ysigmatheta,nbins[ivar]);
- sprintf (splname,"fSplineSigmaphi[%d][%d]",ispline,ivar);
+ snprintf (splname, 40, "fSplineSigmaphi[%d][%d]",ispline,ivar);
fSplineSigmaphi[ispline][ivar] = new TSpline3(splname,xspl,ysigmaphi,nbins[ivar]);
ispline++;
}
}
void AliMUONFastTracking::SetBackground(Float_t bkg){
+ //
// linear interpolation of the parameters in the LUT between 2 values where
// the background has been actually calculated
-
+ //
if (bkg>2) printf ("WARNING: unsafe extrapolation!\n");
fBkg = bkg;
- Float_t BKG[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated
+ Float_t bkgLevel[4] = {0, 0.5, 1, 2}; // bkg values for which LUT is calculated
Int_t ibkg;
- for (ibkg=0; ibkg<4; ibkg++) if ( bkg < BKG[ibkg]) break;
+ for (ibkg=0; ibkg<4; ibkg++) if ( bkg < bkgLevel[ibkg]) break;
if (ibkg == 4) ibkg--;
if (ibkg == 0) ibkg++;
- Float_t x0 = BKG[ibkg-1];
- Float_t x1 = BKG[ibkg];
+ Float_t x0 = bkgLevel[ibkg-1];
+ Float_t x1 = bkgLevel[ibkg];
Float_t x = (bkg - x0) / (x1 - x0);
Float_t y0, y1;
for (Int_t ip=0; ip< fNbinp; ip++){
for (Int_t itheta=0; itheta< fNbintheta; itheta++){
for (Int_t iphi=0; iphi< fNbinphi; iphi++){
- fCurrentEntry[ip][itheta][iphi]->fP = fEntry[ip][itheta][iphi][ibkg]->fP;
- fCurrentEntry[ip][itheta][iphi]->fTheta = fEntry[ip][itheta][iphi][ibkg]->fTheta;
- fCurrentEntry[ip][itheta][iphi]->fPhi = fEntry[ip][itheta][iphi][ibkg]->fPhi;
- fCurrentEntry[ip][itheta][iphi]->fChi2p = -1;
- fCurrentEntry[ip][itheta][iphi]->fChi2theta = -1;
- fCurrentEntry[ip][itheta][iphi]->fChi2phi = -1;
-
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanp;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanp;
- fCurrentEntry[ip][itheta][iphi] ->fMeanp = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeantheta;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fMeantheta;
- fCurrentEntry[ip][itheta][iphi] ->fMeantheta = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanphi;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanphi;
- fCurrentEntry[ip][itheta][iphi] ->fMeanphi = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmap;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmap;
- fCurrentEntry[ip][itheta][iphi] ->fSigmap = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmatheta;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmatheta;
- fCurrentEntry[ip][itheta][iphi] ->fSigmatheta = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaphi;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaphi;
- fCurrentEntry[ip][itheta][iphi] ->fSigmaphi = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigma1p;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fSigma1p;
- fCurrentEntry[ip][itheta][iphi] ->fSigma1p = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fNormG2;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fNormG2;
- fCurrentEntry[ip][itheta][iphi] ->fNormG2 = (y1 - y0) * x + y0;
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fMeanG2;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fMeanG2;
- fCurrentEntry[ip][itheta][iphi] ->fMeanG2 = (y1 - y0) * x + y0;
+ fCurrentEntry[ip][itheta][iphi]->SetP(fEntry[ip][itheta][iphi][ibkg]->GetP());
+ fCurrentEntry[ip][itheta][iphi]->SetTheta(fEntry[ip][itheta][iphi][ibkg]->GetTheta());
+ fCurrentEntry[ip][itheta][iphi]->SetPhi(fEntry[ip][itheta][iphi][ibkg]->GetPhi());
+ fCurrentEntry[ip][itheta][iphi]->SetChi2p(-1);
+ fCurrentEntry[ip][itheta][iphi]->SetChi2theta(-1);
+ fCurrentEntry[ip][itheta][iphi]->SetChi2phi(-1);
+
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanp();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanp();
+ fCurrentEntry[ip][itheta][iphi] ->SetMeanp((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeantheta();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeantheta();
+ fCurrentEntry[ip][itheta][iphi] ->SetMeantheta((y1 - y0) * x +y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanphi();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanphi();
+ fCurrentEntry[ip][itheta][iphi] ->SetMeanphi((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmap();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmap();
+ fCurrentEntry[ip][itheta][iphi] ->SetSigmap((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmatheta();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmatheta();
+ fCurrentEntry[ip][itheta][iphi] ->SetSigmatheta((y1 - y0) * x+y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaphi();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaphi();
+ fCurrentEntry[ip][itheta][iphi] ->SetSigmaphi((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigma1p();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigma1p();
+ fCurrentEntry[ip][itheta][iphi] ->SetSigma1p((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetNormG2();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetNormG2();
+ fCurrentEntry[ip][itheta][iphi] ->SetNormG2((y1 - y0) * x + y0);
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetMeanG2();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetMeanG2();
+ fCurrentEntry[ip][itheta][iphi] ->SetMeanG2((y1 - y0) * x + y0);
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fSigmaG2;
- y1 = fEntry[ip][itheta][iphi][ibkg]->fSigmaG2;
- fCurrentEntry[ip][itheta][iphi] ->fSigmaG2 = (y1 - y0) * x + y0;
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetSigmaG2();
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetSigmaG2();
+ fCurrentEntry[ip][itheta][iphi] ->SetSigmaG2((y1 - y0) * x + y0);
for (Int_t i=0; i<kSplitP; i++) {
for (Int_t j=0; j<kSplitTheta; j++) {
- fCurrentEntry[ip][itheta][iphi]->fAcc[i][j] = fEntry[ip][itheta][iphi][ibkg]->fAcc[i][j];
- y0 = fEntry[ip][itheta][iphi][ibkg-1]->fEff[i][j];
- y1 = fEntry[ip][itheta][iphi][ibkg]->fEff[i][j];
- fCurrentEntry[ip][itheta][iphi]->fEff[i][j] = (y1 - y0) * x + y0;
+ fCurrentEntry[ip][itheta][iphi]->SetAcc(i,j,fEntry[ip][itheta][iphi][ibkg]->GetAcc(i,j));
+ y0 = fEntry[ip][itheta][iphi][ibkg-1]->GetEff(i,j);
+ y1 = fEntry[ip][itheta][iphi][ibkg]->GetEff(i,j);
+ fCurrentEntry[ip][itheta][iphi]->SetEff(i,j, (y1 - y0) * x + y0);
}
}
}
}
TF1* AliMUONFastTracking::GetFitP(Int_t ip,Int_t itheta,Int_t iphi) {
- if (!fFitp[ip][itheta][iphi]) {
- fFitp[ip][itheta][iphi] = new TF1("fit1",FitP,-20.,20.,6);
+ // gets the correct prec-pgen distribution for a given LUT cell
+ if (!fFitp[ip][itheta][iphi]) {
+ char name[256];
+ snprintf(name, 256, "fit_%d_%d_%d", ip, itheta, iphi);
+ fFitp[ip][itheta][iphi] = new TF1(name ,FitP,-20.,20.,6);
fFitp[ip][itheta][iphi]->SetNpx(500);
fFitp[ip][itheta][iphi]->SetParameters(0.,0.,0.,0.,0.,0.);
}
return fFitp[ip][itheta][iphi];
}
- // to guarantee a safe extrapolation for sigmag2 to 0<bkg<0.5, let's fit
- // with a straight line sigmag2 vs bkg for bkg=0.5, 1 and 2, and put the
- // sigma2(BKG=0) as the extrapolation of this fit
+AliMUONFastTracking& AliMUONFastTracking::operator=(const AliMUONFastTracking& rhs)
+{
+// Assignment operator
+ rhs.Copy(*this);
+ return *this;
+}
+
+void AliMUONFastTracking::Copy(TObject&) const
+{
+ //
+ // Copy
+ //
+ Fatal("Copy","Not implemented!\n");
+}