/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ //------------------------------------------------------------------------- // AliESDUtils - This is a namespace that temporary provides general // purpose ESD utilities to avoid unnecessary dependencies // between PWG libraries. To be removed/replaced by AODB // framework. // //------------------------------------------------------------------------- // Author: Andrei Gheata #include "AliESDUtils.h" #include "AliESDEvent.h" #include "AliESDVZERO.h" #include "AliVertexerTracks.h" //______________________________________________________________________________ Float_t AliESDUtils::GetCorrV0(const AliVEvent* esd, Float_t &v0CorrResc, Float_t *v0multChCorr, Float_t *v0multChCorrResc) { // Correct V0 non-linearity, prepare a version rescaled to SPD2 corr. // Please describe better parameters... Double_t *par0; Double_t *par1; Double_t *par2; Double_t par0_137161[64] = { 6.71e-02 , 6.86e-02 , 7.06e-02 , 6.32e-02 , 5.91e-02 , 6.07e-02 , 5.78e-02 , 5.73e-02 , 5.91e-02 , 6.22e-02 , 5.90e-02 , 6.11e-02 , 5.55e-02 , 5.29e-02 , 5.19e-02 , 5.56e-02 , 6.25e-02 , 7.03e-02 , 5.64e-02 , 5.81e-02 , 4.57e-02 , 5.30e-02 , 5.13e-02 , 6.43e-02 , 6.27e-02 , 6.48e-02 , 6.07e-02 , 1.01e-01 , 6.68e-02 , 7.16e-02 , 6.36e-02 , 5.95e-02 , 2.52e-02 , 2.82e-02 , 2.56e-02 , 2.86e-02 , 2.82e-02 , 2.10e-02 , 2.13e-02 , 2.32e-02 , 2.75e-02 , 4.34e-02 , 3.78e-02 , 4.52e-02 , 4.11e-02 , 3.89e-02 , 4.10e-02 , 3.73e-02 , 4.51e-02 , 5.07e-02 , 5.42e-02 , 4.74e-02 , 4.33e-02 , 4.44e-02 , 4.64e-02 , 3.01e-02 , 6.38e-02 , 5.26e-02 , 4.99e-02 , 5.26e-02 , 5.47e-02 , 3.84e-02 , 5.00e-02 , 5.20e-02 }; Double_t par1_137161[64] = { -6.68e-05 , -7.78e-05 , -6.88e-05 , -5.92e-05 , -2.43e-05 , -3.54e-05 , -2.91e-05 , -1.99e-05 , -1.40e-05 , -4.01e-05 , -2.29e-05 , -3.68e-05 , -2.53e-05 , -2.44e-06 , -9.22e-06 , -1.51e-05 , -2.80e-05 , -2.34e-05 , -1.72e-05 , -1.81e-05 , -1.29e-05 , -2.65e-05 , -1.61e-05 , -2.86e-05 , -1.74e-05 , -4.23e-05 , -3.41e-05 , -1.05e-04 , -2.76e-05 , -4.71e-05 , -3.06e-05 , -2.32e-05 , -1.55e-06 , 2.15e-05 , 1.40e-05 , 2.16e-05 , 1.21e-05 , 3.05e-06 , 1.67e-05 , -3.84e-06 , 3.09e-06 , 1.50e-05 , 3.47e-06 , 4.87e-06 , -3.71e-07 , -1.75e-06 , -1.80e-06 , 9.99e-06 , -6.46e-06 , -4.91e-06 , 1.33e-05 , -2.52e-07 , -3.85e-06 , 4.94e-06 , -2.48e-07 , -1.20e-05 , 2.07e-06 , 6.12e-06 , -1.18e-06 , 4.54e-06 , -1.54e-05 , -1.25e-05 , 1.46e-06 , -6.67e-06 }; Double_t par2_137161[64] = { 1.29e-08 , 1.51e-08 , 1.43e-08 , 1.11e-08 , 5.04e-09 , 6.99e-09 , 5.58e-09 , 4.15e-09 , 4.00e-09 , 8.22e-09 , 4.97e-09 , 7.66e-09 , 4.91e-09 , 1.10e-09 , 2.64e-09 , 3.64e-09 , 5.76e-09 , 5.46e-09 , 3.38e-09 , 3.47e-09 , 2.43e-09 , 4.13e-09 , 2.80e-09 , 5.80e-09 , 3.86e-09 , 7.46e-09 , 5.98e-09 , 2.58e-08 , 5.50e-09 , 8.72e-09 , 5.23e-09 , 4.37e-09 , 2.33e-09 , -6.01e-10 , 3.99e-11 , -2.02e-10 , 7.67e-10 , 2.03e-09 , 1.17e-10 , 2.56e-09 , 1.16e-09 , -4.75e-10 , 1.28e-09 , 1.23e-09 , 1.62e-09 , 1.61e-09 , 1.93e-09 , 2.97e-10 , 2.21e-09 , 2.16e-09 , 5.22e-10 , 1.03e-09 , 1.56e-09 , 5.00e-10 , 1.01e-09 , 2.93e-09 , 1.05e-09 , 9.96e-11 , 1.21e-09 , 7.45e-10 , 3.07e-09 , 2.31e-09 , 6.70e-10 , 1.89e-09 }; Double_t par0_137366[64] = { 7.12e-02 , 7.34e-02 , 7.39e-02 , 6.54e-02 , 6.11e-02 , 6.31e-02 , 6.15e-02 , 6.00e-02 , 6.10e-02 , 6.49e-02 , 6.17e-02 , 6.33e-02 , 6.00e-02 , 5.48e-02 , 5.44e-02 , 5.81e-02 , 6.49e-02 , 7.07e-02 , 5.91e-02 , 6.18e-02 , 4.82e-02 , 5.67e-02 , 5.36e-02 , 6.60e-02 , 6.37e-02 , 6.78e-02 , 6.31e-02 , 1.04e-01 , 6.91e-02 , 7.32e-02 , 6.61e-02 , 6.16e-02 , 2.64e-02 , 2.81e-02 , 2.64e-02 , 2.85e-02 , 2.87e-02 , 2.18e-02 , 2.19e-02 , 2.43e-02 , 2.81e-02 , 4.37e-02 , 3.90e-02 , 4.66e-02 , 4.24e-02 , 4.09e-02 , 4.21e-02 , 3.88e-02 , 4.83e-02 , 5.23e-02 , 5.44e-02 , 4.85e-02 , 4.42e-02 , 4.58e-02 , 4.74e-02 , 3.14e-02 , 6.31e-02 , 5.30e-02 , 5.01e-02 , 5.33e-02 , 5.70e-02 , 3.95e-02 , 4.98e-02 , 5.31e-02 }; Double_t par1_137366[64] = { -6.99e-05 , -6.99e-05 , -6.94e-05 , -6.55e-05 , -3.55e-05 , -4.50e-05 , -3.10e-05 , -2.81e-05 , -2.29e-05 , -3.89e-05 , -2.53e-05 , -4.25e-05 , -1.87e-05 , -2.01e-05 , -1.53e-05 , -2.14e-05 , -2.86e-05 , -4.70e-05 , -2.23e-05 , -3.30e-05 ,-9.74e-06 , -2.62e-05 , -1.76e-05 , -2.38e-05 , -2.40e-05 , -3.43e-05 , -2.75e-05 , -6.86e-05 ,-2.35e-05 , -4.45e-05 , -2.51e-05 , -2.20e-05 , -1.25e-16 , -2.04e-17 , -2.06e-17 , -3.74e-19 , -1.18e-18 , -2.02e-15 , -3.78e-06 , -1.26e-06 , -2.71e-06 , -6.23e-17 , -7.39e-08 , -1.76e-16 , -8.98e-06 , -4.10e-18 , -1.34e-05 , -1.06e-16 , -3.34e-06 , -1.04e-05 , -5.28e-06 , -7.34e-06 , -1.05e-05 , -7.68e-06 , -1.78e-05 , -1.19e-05 , -1.78e-05 , -1.34e-06 , -9.23e-06 , -3.34e-06 , -8.02e-06 , -1.39e-05 , -1.38e-05 , -1.40e-05 }; Double_t par2_137366[64] = { 1.41e-08 , 1.47e-08 , 1.48e-08 , 1.24e-08 , 6.82e-09 , 8.73e-09 , 6.26e-09 , 5.53e-09 , 5.40e-09 , 7.93e-09 , 5.49e-09 , 8.77e-09 , 4.21e-09 , 3.93e-09 , 3.60e-09 , 4.67e-09 , 5.59e-09 , 8.81e-09 , 3.89e-09 , 6.19e-09 , 1.97e-09 , 4.38e-09 , 3.26e-09 , 5.00e-09 , 4.58e-09 , 6.39e-09 , 5.03e-09 , 1.30e-08 , 4.95e-09 , 8.26e-09 , 4.57e-09 , 4.10e-09 , 2.35e-09 , 2.30e-09 , 2.15e-09 , 2.27e-09 , 2.17e-09 , 2.27e-09 , 2.97e-09 , 2.25e-09 , 1.69e-09 , 1.44e-09 , 1.66e-09 , 1.75e-09 , 2.88e-09 , 1.82e-09 , 3.64e-09 , 1.80e-09 , 1.71e-09 , 2.66e-09 , 3.01e-09 , 1.95e-09 , 2.64e-09 , 2.42e-09 , 3.68e-09 , 2.66e-09 , 3.92e-09 , 1.18e-09 , 2.26e-09 , 1.57e-09 , 2.02e-09 , 2.71e-09 , 2.99e-09 , 3.04e-09 }; if (esd->GetRunNumber() <= 137165) { par0=par0_137161; par1=par1_137161; par2=par2_137161; } else { par0=par0_137366; par1=par1_137366; par2=par2_137366; } // Float_t multCorr = 0; Float_t multCorr2 = 0; Float_t multChCorr[64]; Float_t multChCorrResc[64]; AliVVZERO* esdV0 = esd->GetVZEROData(); for(Int_t i = 0; i < 64; ++i) { if (esdV0->TestBit(AliESDVZERO::kCorrectedForSaturation)) { multChCorr[i] = esdV0->GetMultiplicity(i); } else { Double_t b = (esdV0->GetMultiplicity(i)*par1[i]-par0[i]); Double_t s = (b*b-4.*par2[i]*esdV0->GetMultiplicity(i)*esdV0->GetMultiplicity(i)); Double_t n = (s<0) ? -b : (-b + TMath::Sqrt(s)); multChCorr[i] = 2.*esdV0->GetMultiplicity(i)/n*par0[i]; } multCorr += multChCorr[i]; multChCorrResc[i] = multChCorr[i]/par0[i]/64.; multCorr2 += multChCorrResc[i]; } v0CorrResc = multCorr2; if (v0multChCorr) for(Int_t i = 0; i < 64; ++i) v0multChCorr[i] = multChCorr[i]; if (v0multChCorrResc) for(Int_t i = 0; i < 64; ++i) v0multChCorrResc[i] = multChCorrResc[i]; return multCorr; } //______________________________________________________________________________ Float_t AliESDUtils::GetCorrSPD2(Float_t spd2raw,Float_t zv) { // renormalize N spd2 clusters at given Zv to acceptance at Zv=0 const Double_t pars[] = {8.10030e-01,-2.80364e-03,-7.19504e-04}; zv -= pars[0]; Float_t corr = 1 + zv*(pars[1] + zv*pars[2]); return corr>0 ? spd2raw/corr : -1; } //______________________________________________________________________________ Bool_t AliESDUtils::RefitESDVertexTracks(AliESDEvent* esdEv, Int_t algo, const Double_t *cuts) { // Refit ESD VertexTracks and redo tracks->RelateToVertex // Default vertexin algorithm is 6 (multivertexer). To use old vertexed, use algo=1 // static AliVertexerTracks* vtFinder = 0; static int currRun = 0; static int defAlgo = -1; static double bkgauss = 0; const Bool_t kVtxConstr = kTRUE; // if (!vtFinder) { // create vertexer vtFinder = new AliVertexerTracks(esdEv->GetMagneticField()); printf("Initialized vertexer for VertexTracks refit with field %f kG\n",esdEv->GetMagneticField()); // vtFinder->SetITSMode(); vtFinder->SetConstraintOff(); } // if ( (cuts && algo>11) || algo!=defAlgo) { // if cuts array is provided, then interpret algo as the number of parameters in the cuts. // otherwise, interpret it as an algorithm ID for hardwired cuts below if (cuts) { vtFinder->SetCuts((double*)cuts,algo); defAlgo = (Int_t)(cuts[10]); } else { const int kNCuts=21; double vtCuts[kNCuts] = {1.00e-01,1.00e-01,5.00e-01,3.00e+00,1.00e+00,3.00e+00,1.00e+02, 1.00e+03,3.00e+00,3.00e+01,6.00e+00,4.00e+00,7.00e+00,1.00e+03, 5.00e+00,5.00e-02,1.00e-03,2.00e+00,1.00e+01,1.00e+00,5.00e+01}; // vtCuts[10] = algo; defAlgo = algo; vtFinder->SetCuts(vtCuts,kNCuts); printf("Setting vertexing algorithm to %d\n",defAlgo); } } if (defAlgo<0 || defAlgo>AliVertexerTracks::kMultiVertexer) { printf("Vertexer algorithms 0:%d are supported... \n",defAlgo); return kFALSE; } // if (currRun!=esdEv->GetRunNumber() && kVtxConstr) { // update diamond for this run double pos[3]={esdEv->GetDiamondX(),esdEv->GetDiamondY(),0}; Float_t diamondcovxy[3]={0}; esdEv->GetDiamondCovXY(diamondcovxy); Double_t cov[6]={diamondcovxy[0],diamondcovxy[1],diamondcovxy[2],0.,0.,7.*7.}; AliESDVertex initVertex(pos,cov,1.,1); vtFinder->SetVtxStart(&initVertex); bkgauss = esdEv->GetMagneticField(); vtFinder->SetFieldkG(bkgauss); currRun = esdEv->GetRunNumber(); printf("Imposed Vtx constraint for run %d\n",currRun); initVertex.Print(); } // // reset old vertex info if (esdEv->GetPileupVerticesTracks()) esdEv->GetPileupVerticesTracks()->Clear(); ((AliESDVertex*)esdEv->GetPrimaryVertexTracks())->SetNContributors(-1); // AliESDVertex *pvtx=vtFinder->FindPrimaryVertex(esdEv); if (pvtx) { if (pvtx->GetStatus()) { esdEv->SetPrimaryVertexTracks(pvtx); for (Int_t i=esdEv->GetNumberOfTracks(); i--;) { AliESDtrack *t = esdEv->GetTrack(i); Double_t x[3]; t->GetXYZ(x); t->RelateToVertex(pvtx, bkgauss, kVeryBig); } } delete pvtx; } else return kFALSE; // return kTRUE; } //________________________________________________________________________ Float_t AliESDUtils::GetCorrV0A(Float_t v0araw, Float_t zv) { // renormalize v0A signal at given Zv to acceptance at Zv=0 const Double_t pars[] = {0.998864,-0.00407311,-2.47408e-06}; zv -= pars[0]; Float_t corr = 1 + zv*(pars[1] + zv*pars[2]); return corr>0 ? v0araw/corr : -1; } //________________________________________________________________________ Float_t AliESDUtils::GetCorrV0C(Float_t v0craw, Float_t zv) { // renormalize v0C signal at given Zv to acceptance at Zv=0 const Double_t pars[] = {1.00083,0.00427623,-2.69047e-05}; zv -= pars[0]; Float_t corr = 1 + zv*(pars[1] + zv*pars[2]); return corr>0 ? v0craw/corr : -1; } //________________________________________________________________________ Float_t AliESDUtils::GetCorrV0A0(Float_t v0a0raw, Float_t zv) { // renormalize v0A-0 signal at given Zv to acceptance at Zv=0 const Double_t pars[] = {0.998243,-0.00209013,-6.97686e-06}; zv -= pars[0]; Float_t corr = 1 + zv*(pars[1] + zv*pars[2]); return corr>0 ? v0a0raw/corr : -1; }