// implemented and described by Michael A. Lisa //
// //
// Piotr.Skowronski@cern.ch //
-// http://alisoft.cern.ch/people/skowron/analyzer //
+// http://aliweb.cern.ch/people/skowron/analyzer //
// //
///////////////////////////////////////////////////////
-//Parameters fit from pi+ pi+ resolution analysis for pair with qinv<50MeV
-// chi2/NFD = 97/157
-// FCN=98.0971 FROM MIGRAD STATUS=CONVERGED 332 CALLS 333 TOTAL
-// EDM=2.13364e-12 STRATEGY= 1 ERROR MATRIX UNCERTAINTY 2.4 per cent
-// EXT PARAMETER STEP FIRST
-// NO. NAME VALUE ERROR SIZE DERIVATIVE
-// 1 fThetaA 2.72546e-03 1.43905e-04 -0.00000e+00 5.54375e-02
-// 2 fThetaB 1.87116e-04 5.11862e-05 0.00000e+00 3.66500e-01
-// 3 fThetaAlpha -2.36868e+00 1.83230e-01 0.00000e+00 -7.01301e-05
-
-// FCN=120.603 FROM MIGRAD STATUS=CONVERGED 117 CALLS 118 TOTAL
-// EDM=2.5153e-12 STRATEGY= 1 ERROR MATRIX UNCERTAINTY 2.4 per cent
-// EXT PARAMETER STEP FIRST
-// NO. NAME VALUE ERROR SIZE DERIVATIVE
-// 1 fPhiA 1.93913e-03 1.31059e-04 -0.00000e+00 -5.87280e-02
-// 2 fPhiA 2.48687e-04 5.41251e-05 0.00000e+00 -1.87361e-01
-// 3 fPhiAlpha -2.22649e+00 1.44503e-01 0.00000e+00 8.97538e-06
+// dPt/Pt
+// root [19] rms->Fit(f,"","",0.1,2)
+// FCN=7.0017 FROM MIGRAD STATUS=CONVERGED 126 CALLS 127 TOTAL
+// EDM=2.28804e-15 STRATEGY= 1 ERROR MATRIX ACCURATE
+// EXT PARAMETER STEP FIRST
+// NO. NAME VALUE ERROR SIZE DERIVATIVE
+// 1 p0 5.78220e-03 3.14576e-05 4.97822e-09 -1.90059e-05
+// 2 p1 3.98063e-05 1.61877e-06 1.04380e-10 1.91454e-04
+// 3 p2 -2.78008e+00 2.13581e-02 1.66031e-06 3.16574e-06
+// 4 p3 5.07594e-04 4.79619e-05 1.29793e-08 -2.29242e-05
+
+
+// Phi
+// root [17] rms->Fit(f,"","",0.15,2.5)
+// Warning in <TH1D::Fit>: Abnormal termination of minimization.
+// FCN=33.4898 FROM MIGRAD STATUS=FAILED 91 CALLS 92 TOTAL
+// EDM=1.19154e-15 STRATEGY= 1 ERR MATRIX APPROXIMATE
+// EXT PARAMETER APPROXIMATE STEP FIRST
+// NO. NAME VALUE ERROR SIZE DERIVATIVE
+// 1 p0 5.87693e-04 5.04254e-06 2.49187e-09 5.84546e-04
+// 2 p1 2.16488e-06 3.68880e-07 6.41507e-11 -7.36564e-02
+// 3 p2 -3.10218e+00 1.01695e-01 2.00177e-05 7.54285e-07
+// 4 p3 -1.79892e-05 5.44067e-06 2.15870e-09 4.11441e-04
+
+
+
+// Theta
+// root [14] rms->Fit(f,"","",0.1,3)
+// FCN=8.9981 FROM MIGRAD STATUS=CONVERGED 79 CALLS 80 TOTAL
+// EDM=3.03049e-17 STRATEGY= 1 ERR MATRIX NOT POS-DEF
+// EXT PARAMETER APPROXIMATE STEP FIRST
+// NO. NAME VALUE ERROR SIZE DERIVATIVE
+// 1 p0 -1.68773e-02 2.67644e-05 8.04770e-09 4.48079e-05
+// 2 p1 1.78440e-02 2.65467e-05 8.50867e-09 6.43012e-05
+// 3 p2 -5.26559e-02 5.06308e-04 2.28595e-07 -1.63963e-05
+// 4 p3 2.00940e-04 1.14440e-05 3.98737e-09 1.78198e-05
+
#include <TH1.h>
#include <TH3.h>
#include <TF1.h>
#include <TRandom.h>
+#include <AliAODParticle.h>
+
+
+ClassImp(AliHBTCorrectedCorrelFctn)
+
+AliHBTCorrectedCorrelFctn::AliHBTCorrectedCorrelFctn():
+ fDPtOverPtA(5.78220e-03),
+ fDPtOverPtB(3.98063e-05),
+ fDPtOverPtAlpha(-2.78008),
+ fDPtOverPtC(5.07594e-04),
+ fThetaA(5.87693e-04),
+ fThetaB(2.16488e-06),
+ fThetaAlpha(-3.10218e+00),
+ fThetaC(-1.79892e-05),
+ fPhiA(-1.68773e-02),
+ fPhiB(1.78440e-02),
+ fPhiAlpha(-5.26559e-02),
+ fPhiC(2.00940e-04)
+{
+ //ctor
+}
+
+/******************************************************************/
+void AliHBTCorrectedCorrelFctn::Smear(AliHBTPair* pair,AliHBTPair& smeared)
+{
+//Smears pair
+ Smear(pair->Particle1(),smeared.Particle1());
+ Smear(pair->Particle2(),smeared.Particle2());
+ smeared.Changed();
+}
+/******************************************************************/
+
+void AliHBTCorrectedCorrelFctn::Smear(AliVAODParticle* part, AliVAODParticle* smeared)
+{
+ //Smears momenta
+ Double_t sin2theta = TMath::Sin(part->Theta());
+ sin2theta = sin2theta*sin2theta;
+ Double_t pt = part->Pt();
+
+ Double_t sigmapt = fDPtOverPtA + fDPtOverPtB*TMath::Power(pt,fDPtOverPtAlpha) + fDPtOverPtC*pt;
+ Double_t dPtDivPt = gRandom->Gaus(0.0,sigmapt);
+ Double_t dphi = gRandom->Gaus(0.0,fPhiA+fPhiB*TMath::Power(pt,fPhiAlpha) + fPhiC*pt);
+ Double_t dtheta = gRandom->Gaus(0.0,fPhiA+fPhiB*TMath::Power(pt,fThetaAlpha) +fThetaC*pt);
+
+ Double_t smearedPx = part->Px()*(1.0+dPtDivPt) - part->Py()*dphi;
+// fourmom.setX(px*(1.0+dPtDivPt) - py*dphi);
+ Double_t smearedPy = part->Py()*(1.0+dPtDivPt) - part->Px()*dphi;
+// fourmom.setY(py*(1.0+dPtDivPt) + px*dphi);
+ Double_t smearedPz = part->Pz()*(1.0+dPtDivPt) - pt*dtheta/sin2theta;
+// fourmom.setZ(pz*(1.0+dPtDivPt) - pT*dtheta/sin2theta);
+
+ Double_t mass2 = part->Mass()*part->Mass();
+ Double_t e = mass2 + smearedPx*smearedPx +
+ smearedPy*smearedPy +
+ smearedPz*smearedPz;
+
+ smeared->SetMomentum(smearedPx,smearedPy,smearedPz,TMath::Sqrt(e));
+}
+
+/****************************************************************/
+/****************************************************************/
+/****************************************************************/
+
+
ClassImp(AliHBTCorrectQInvCorrelFctn)
AliHBTCorrectQInvCorrelFctn::AliHBTCorrectQInvCorrelFctn(const char* name,const char* title):
fMeasDenom(0x0),
fSmearedNumer(0x0),
fSmearedDenom(0x0),
- fDPtOverPtRMS(0.004),
- fThetaA(2.72e-03),
- fThetaB(1.87e-04),
- fThetaAlpha(-2.4),
- fPhiA(1.94e-03),
- fPhiB(2.5e-04),
- fPhiAlpha(-2.2),
fR2(0.0),
fLambda(0.0),
fRConvergenceTreshold(0.3),
fMeasDenom(0x0),
fSmearedNumer(0x0),
fSmearedDenom(0x0),
- fDPtOverPtRMS(0.004),
- fThetaA(2.72e-03),
- fThetaB(1.87e-04),
- fThetaAlpha(-2.4),
- fPhiA(1.94e-03),
- fPhiB(2.5e-04),
- fPhiAlpha(-2.2),
fR2(0.0),
fLambda(0.0),
fRConvergenceTreshold(0.3),
AliHBTCorrectQInvCorrelFctn::AliHBTCorrectQInvCorrelFctn(const char* name, const char* title,
Int_t nbins, Float_t maxXval, Float_t minXval):
AliHBTOnePairFctn1D(name,title,nbins,maxXval,minXval),
+ AliHBTCorrectedCorrelFctn(),
fMeasCorrelFctn(0x0),
fMeasNumer(0x0),
fMeasDenom(0x0),
fSmearedNumer(0x0),
fSmearedDenom(0x0),
- fDPtOverPtRMS(0.004),
- fThetaA(2.72e-03),
- fThetaB(1.87e-04),
- fThetaAlpha(-2.4),
- fPhiA(1.94e-03),
- fPhiB(2.5e-04),
- fPhiAlpha(-2.2),
fR2(0.0),
fLambda(0.0),
fRConvergenceTreshold(0.3),
/******************************************************************/
AliHBTCorrectQInvCorrelFctn::AliHBTCorrectQInvCorrelFctn(const AliHBTCorrectQInvCorrelFctn& in):
AliHBTOnePairFctn1D(in),
+ AliHBTCorrectedCorrelFctn(),
fMeasCorrelFctn(0x0),
fMeasNumer(0x0),
fMeasDenom(0x0),
fSmearedNumer(0x0),
fSmearedDenom(0x0),
- fDPtOverPtRMS(0),
- fThetaA(0),
- fThetaB(0),
- fThetaAlpha(0),
- fPhiA(0),
- fPhiB(0),
- fPhiAlpha(0),
fR2(0.0),
fLambda(0.0),
fRConvergenceTreshold(0),
void AliHBTCorrectQInvCorrelFctn::ProcessDiffEventParticles(AliHBTPair* pair)
{
//Process different events
- static AliHBTParticle part1, part2;
+ static AliAODParticle part1, part2;
static AliHBTPair smearedpair(&part1,&part2);
pair = CheckPair(pair);
}
/******************************************************************/
-void AliHBTCorrectQInvCorrelFctn::Smear(AliHBTPair* pair,AliHBTPair& smeared)
-{
-//Smears pair
- Smear(pair->Particle1(),smeared.Particle1());
- Smear(pair->Particle2(),smeared.Particle2());
- smeared.Changed();
-}
-/******************************************************************/
-
-void AliHBTCorrectQInvCorrelFctn::Smear(AliHBTParticle* part, AliHBTParticle* smeared)
-{
- //Smears momenta
- Double_t sin2theta = TMath::Sin(part->Theta());
- sin2theta = sin2theta*sin2theta;
- Double_t pt = part->Pt();
-
- double dPtDivPt = gRandom->Gaus(0.0,fDPtOverPtRMS);
- double dphi = gRandom->Gaus(0.0,fPhiA+fPhiB*TMath::Power(pt,fPhiAlpha));
- double dtheta = gRandom->Gaus(0.0,fPhiA+fPhiB*TMath::Power(pt,fThetaAlpha));
-
- Double_t smearedPx = part->Px()*(1.0+dPtDivPt) - part->Py()*dphi;
-// fourmom.setX(px*(1.0+dPtDivPt) - py*dphi);
- Double_t smearedPy = part->Py()*(1.0+dPtDivPt) - part->Px()*dphi;
-// fourmom.setY(py*(1.0+dPtDivPt) + px*dphi);
- Double_t smearedPz = part->Pz()*(1.0+dPtDivPt) - pt*dtheta/sin2theta;
-// fourmom.setZ(pz*(1.0+dPtDivPt) - pT*dtheta/sin2theta);
-
- Double_t mass2 = part->GetMass()*part->GetMass();
- Double_t e = mass2 + smearedPx*smearedPx +
- smearedPy*smearedPy +
- smearedPz*smearedPz;
-
- smeared->SetMomentum(smearedPx,smearedPy,smearedPz,TMath::Sqrt(e));
-}
-/******************************************************************/
void AliHBTCorrectQInvCorrelFctn::SetInitialValues(Double_t lambda, Double_t r)
{
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff