+++ /dev/null
-/**************************************************************************
- * 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. *
- **************************************************************************/
-
-//_________________________________________________________________________
-// Algorythm class to analyze PHOSv1 events:
-// Construct histograms and displays them.
-// IHEP CPV/PHOS reconstruction algorithm used.
-// Use the macro EditorBar.C for best access to the functionnalities
-//*--
-//*-- Author: B. Polichtchouk (IHEP)
-//////////////////////////////////////////////////////////////////////////////
-
-// --- ROOT system ---
-
-#include "TFile.h"
-#include "TH1.h"
-#include "TPad.h"
-#include "TH2.h"
-#include "TParticle.h"
-#include "TClonesArray.h"
-#include "TTree.h"
-#include "TMath.h"
-#include "TCanvas.h"
-#include "TStyle.h"
-
-// --- Standard library ---
-
-// --- AliRoot header files ---
-
-#include "AliRunLoader.h"
-#include "AliHeader.h"
-
-// --- PHOS header files ---
-#include "AliLog.h"
-#include "AliPHOSIhepAnalyze.h"
-#include "AliPHOSDigit.h"
-#include "AliPHOSRecParticle.h"
-#include "AliPHOSLoader.h"
-#include "AliPHOSHit.h"
-#include "AliPHOSImpact.h"
-#include "AliPHOSvImpacts.h"
-#include "AliPHOSCpvRecPoint.h"
-#include "AliRun.h"
-#include "AliPHOSGeometry.h"
-#include "AliPHOSEvalRecPoint.h"
-
-ClassImp(AliPHOSIhepAnalyze)
-
-//____________________________________________________________________________
-AliPHOSIhepAnalyze::AliPHOSIhepAnalyze():
- fRunLoader(0),
- fFileName()
-{
-}
-
-//____________________________________________________________________________
-AliPHOSIhepAnalyze::AliPHOSIhepAnalyze(Text_t * name) :
- fRunLoader(0),
- fFileName(name)
-{
- // Constructor: open a header file
- fRunLoader = AliRunLoader::Open(fFileName);
- if (fRunLoader == 0x0)
- {
- AliFatal(Form("Can not load event from file %s",name));
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSIhepAnalyze::AnalyzeCPV1(Int_t Nevents)
-{
- //
- // Analyzes CPV characteristics: resolutions, cluster multiplicity,
- // cluster lengths along Z and Phi.
- // Author: Yuri Kharlov
- // 9 October 2000
- // Modified by Boris Polichtchouk, 3.07.2001
- //
-
- // Book histograms
-
- TH1F *hDx = new TH1F("hDx" ,"CPV x-resolution@reconstruction",100,-5. , 5.);
- TH1F *hDz = new TH1F("hDz" ,"CPV z-resolution@reconstruction",100,-5. , 5.);
- TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",30, 0. , 10.);
- TH1S *hNrp = new TH1S("hNrp" ,"CPV rec.point multiplicity", 21,-0.5,20.5);
- TH1S *hNrpX = new TH1S("hNrpX","CPV rec.point Phi-length" , 21,-0.5,20.5);
- TH1S *hNrpZ = new TH1S("hNrpZ","CPV rec.point Z-length" , 21,-0.5,20.5);
-
- TH1F *hEg = new TH1F("hEg" ,"Energies of impacts",30,0.,6.);
- TH1F *hEr = new TH1F("hEr" ,"Amplitudes of rec. points",50,0.,20.);
-
- TList * fCpvImpacts ;
- TBranch * branchCPVimpacts;
-
-
-
- AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
- if ( please == 0 )
- {
- AliError(Form("Could not obtain the Loader object !"));
- return ;
- }
-
- AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
-
- AliInfo(Form("Start CPV Analysis-1. Resolutions, cluster multiplicity and lengths")) ;
- for ( Int_t ievent=0; ievent<Nevents; ievent++) {
-
- Int_t nTotalGen = 0;
- Int_t nChargedGen = 0;
-
- Int_t ntracks = gAlice->GetEvent(ievent);
- AliInfo(Form(">>>>>>>Event %d .<<<<<<<", ievent)) ;
-
- /******************************************************************/
- TTree* treeH = please->TreeH();
- if (treeH == 0x0)
- {
- AliError(Form("Can not get TreeH"));
- return;
- }
-/******************************************************************/
-
- // Get branch of CPV impacts
- if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) {
- AliWarning(Form("Couldn't find branch PHOSCpvImpacts. Exit.")) ;
- return;
- }
-
- // Create and fill arrays of hits for each CPV module
-
- Int_t nOfModules = phosgeom->GetNModules();
- TClonesArray **hitsPerModule = new TClonesArray *[nOfModules];
- Int_t iModule = 0;
- for (iModule=0; iModule < nOfModules; iModule++)
- hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100);
-
- TClonesArray *impacts;
- AliPHOSImpact *impact;
- TLorentzVector p;
-
- // First go through all primary tracks and fill the arrays
- // of hits per each CPV module
-
- for (Int_t itrack=0; itrack<ntracks; itrack++) {
- branchCPVimpacts ->SetAddress(&fCpvImpacts);
- branchCPVimpacts ->GetEntry(itrack,0);
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- impacts = (TClonesArray *)fCpvImpacts->At(iModule);
- // Do loop over impacts in the module
- for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) {
- impact=(AliPHOSImpact*)impacts->At(iImpact);
- hEg->Fill(impact->GetMomentum().E());
- TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule];
- if(IsCharged(impact->GetPid())) nChargedGen++;
- new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact);
- }
- }
- fCpvImpacts->Clear();
- }
- for (iModule=0; iModule < nOfModules; iModule++) {
- Int_t nsum = hitsPerModule[iModule]->GetEntriesFast();
- printf("CPV module %d has %d impacts\n",iModule,nsum);
- nTotalGen += nsum;
- }
-
- // Then go through reconstructed points and for each find
- // the closeset hit
- // The distance from the rec.point to the closest hit
- // gives the coordinate resolution of the CPV
-
- fRunLoader->GetEvent(ievent);
- TIter nextRP(please->CpvRecPoints()) ;
- AliPHOSCpvRecPoint *cpvRecPoint ;
- Float_t xgen, ygen, zgen;
- while( ( cpvRecPoint = (AliPHOSCpvRecPoint *)nextRP() ) ) {
-
- Float_t chi2dof = ((AliPHOSEvalRecPoint*)cpvRecPoint)->Chi2Dof();
- hChi2->Fill(chi2dof);
- hEr->Fill(cpvRecPoint->GetEnergy());
-
- TVector3 locpos;
- cpvRecPoint->GetLocalPosition(locpos);
- Int_t phosModule = cpvRecPoint->GetPHOSMod();
- Int_t rpMult = cpvRecPoint->GetMultiplicity();
- Int_t rpMultX, rpMultZ;
- cpvRecPoint->GetClusterLengths(rpMultX,rpMultZ);
- Float_t xrec = locpos.X();
- Float_t zrec = locpos.Z();
- Float_t dxmin = 1.e+10;
- Float_t dzmin = 1.e+10;
- Float_t r2min = 1.e+10;
- Float_t r2;
-
- Int_t nCPVhits = (hitsPerModule[phosModule-1])->GetEntriesFast();
- Float_t locImpX=1e10,locImpZ=1e10; // local coords of closest impact
- Float_t gImpX=1e10, gImpZ=1e10,gImpY=1e10; // global coords of closest impact
- for (Int_t ihit=0; ihit<nCPVhits; ihit++) {
- impact = (AliPHOSImpact*)(hitsPerModule[phosModule-1])->UncheckedAt(ihit);
- xgen = impact->X();
- zgen = impact->Z();
- ygen = impact->Y();
-
- //Transform to the local ref.frame
- Float_t phig = phosgeom->GetPHOSAngle(phosModule);
- Float_t phi = TMath::Pi()/180*phig;
- Float_t distanceIPtoCPV = phosgeom->GetIPtoOuterCoverDistance() -
- (phosgeom->GetFTPosition(1)+
- phosgeom->GetFTPosition(2)+
- phosgeom->GetCPVTextoliteThickness())/2;
- Float_t xoL,yoL,zoL ;
-// xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ;
-// yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoCPV;
- xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ;
- yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoCPV;
- zoL = zgen;
-
- r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2);
- if ( r2 < r2min ) {
- r2min = r2;
- dxmin = xoL - xrec;
- dzmin = zoL - zrec;
- locImpX = xoL;
- locImpZ = zoL;
- gImpX = xgen;
- gImpZ = zgen;
- gImpY = ygen;
- }
- }
- AliInfo(Form("Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY));
- AliInfo(Form("Impact local (X,Z) = %f %f", locImpX, locImpZ));
- AliInfo(Form("Reconstructed (X,Z) = %f %f", xrec, zrec));
- AliInfo(Form("dxmin %f dzmin %f", dxmin, dzmin));
- hDx ->Fill(dxmin);
- hDz ->Fill(dzmin);
-// hDr ->Fill(TMath::Sqrt(r2min));
- hNrp ->Fill(rpMult);
- hNrpX->Fill(rpMultX);
- hNrpZ->Fill(rpMultZ);
- }
- delete [] hitsPerModule;
-
- AliInfo(Form("++++ Event %d : total %d impacts, %d charged impacts and %d rec. points.",
- ievent, nTotalGen, nChargedGen, please->CpvRecPoints()->GetEntries())) ;
- }
- // Save histograms
-
- Text_t outputname[80] ;
- snprintf(outputname,80,"%s.analyzed",GetFileName().Data());
- TFile output(outputname,"RECREATE");
- output.cd();
-
- // Plot histograms
-
- TCanvas *cpvCanvas = new TCanvas("Cpv1","CPV analysis-I",20,20,800,600);
- gStyle->SetOptStat(111111);
- gStyle->SetOptFit(1);
- gStyle->SetOptDate(1);
- cpvCanvas->Divide(3,3);
-
- cpvCanvas->cd(1);
- gPad->SetFillColor(10);
- hNrp->SetFillColor(16);
- hNrp->Draw();
-
- cpvCanvas->cd(2);
- gPad->SetFillColor(10);
- hNrpX->SetFillColor(16);
- hNrpX->Draw();
-
- cpvCanvas->cd(3);
- gPad->SetFillColor(10);
- hNrpZ->SetFillColor(16);
- hNrpZ->Draw();
-
- cpvCanvas->cd(4);
- gPad->SetFillColor(10);
- hDx->SetFillColor(16);
- hDx->Fit("gaus");
- hDx->Draw();
-
- cpvCanvas->cd(5);
- gPad->SetFillColor(10);
- hDz->SetFillColor(16);
- hDz->Fit("gaus");
- hDz->Draw();
-
- cpvCanvas->cd(6);
- gPad->SetFillColor(10);
- hChi2->SetFillColor(16);
- hChi2->Draw();
-
- cpvCanvas->cd(7);
- gPad->SetFillColor(10);
- hEg->SetFillColor(16);
- hEg->Draw();
-
- cpvCanvas->cd(8);
- gPad->SetFillColor(10);
- hEr->SetFillColor(16);
- hEr->Draw();
-
- cpvCanvas->Write(0,kOverwrite);
-
-}
-
-
-void AliPHOSIhepAnalyze::AnalyzeEMC1(Int_t Nevents)
-{
- //
- // Analyzes Emc characteristics: resolutions, cluster multiplicity,
- // cluster lengths along Z and Phi.
- // Author: Boris Polichtchouk, 24.08.2001
- //
-
- // Book histograms
-
- TH1F *hDx = new TH1F("hDx" ,"EMC x-resolution@reconstruction",100,-5. , 5.);
- TH1F *hDz = new TH1F("hDz" ,"EMC z-resolution@reconstruction",100,-5. , 5.);
- TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",30, 0. , 3.);
- TH1S *hNrp = new TH1S("hNrp" ,"EMC rec.point multiplicity", 21,-0.5,20.5);
- TH1S *hNrpX = new TH1S("hNrpX","EMC rec.point Phi-length" , 21,-0.5,20.5);
- TH1S *hNrpZ = new TH1S("hNrpZ","EMC rec.point Z-length" , 21,-0.5,20.5);
-
- TList * fEmcImpacts ;
- TBranch * branchEMCimpacts;
-
- AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
- if ( please == 0 )
- {
- AliError(Form("Could not obtain the Loader object !"));
- return ;
- }
-
- AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
-
- AliInfo(Form("Start EMC Analysis-1. Resolutions, cluster multiplicity and lengths"));
- for ( Int_t ievent=0; ievent<Nevents; ievent++) {
-
- Int_t nTotalGen = 0;
-
- Int_t ntracks = gAlice->GetEvent(ievent);
-
- AliInfo(Form(" >>>>>>>Event %d .<<<<<<<", ievent)) ;
-
- TTree* treeH = please->TreeH();
- if (treeH == 0x0)
- {
- AliError(Form("Can not get TreeH"));
- return;
- }
-
-
- // Get branch of EMC impacts
- if (! (branchEMCimpacts =treeH->GetBranch("PHOSEmcImpacts")) ) {
- AliWarning(Form(" Couldn't find branch PHOSEmcImpacts. Exit."));
- return;
- }
-
- // Create and fill arrays of hits for each EMC module
-
- Int_t nOfModules = phosgeom->GetNModules();
- TClonesArray **hitsPerModule = new TClonesArray *[nOfModules];
- Int_t iModule = 0;
- for (iModule=0; iModule < nOfModules; iModule++)
- hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100);
-
- TClonesArray *impacts;
- AliPHOSImpact *impact;
- TLorentzVector p;
-
- // First go through all primary tracks and fill the arrays
- // of hits per each EMC module
-
- for (Int_t itrack=0; itrack<ntracks; itrack++) {
- branchEMCimpacts ->SetAddress(&fEmcImpacts);
- branchEMCimpacts ->GetEntry(itrack,0);
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- impacts = (TClonesArray *)fEmcImpacts->At(iModule);
- // Do loop over impacts in the module
- for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) {
- impact=(AliPHOSImpact*)impacts->At(iImpact);
- TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule];
- new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact);
- }
- }
- fEmcImpacts->Clear();
- }
- for (iModule=0; iModule < nOfModules; iModule++) {
- Int_t nsum = hitsPerModule[iModule]->GetEntriesFast();
- printf("EMC module %d has %d hits\n",iModule,nsum);
- nTotalGen += nsum;
- }
-
- // Then go through reconstructed points and for each find
- // the closeset hit
- // The distance from the rec.point to the closest hit
- // gives the coordinate resolution of the EMC
-
- fRunLoader->GetEvent(ievent);
- TIter nextRP(please->EmcRecPoints()) ;
- AliPHOSEmcRecPoint *emcRecPoint ;
- Float_t xgen, ygen, zgen;
- while( ( emcRecPoint = (AliPHOSEmcRecPoint *)nextRP() ) ) {
-
- Float_t chi2dof = ((AliPHOSEvalRecPoint*)emcRecPoint)->Chi2Dof();
- hChi2->Fill(chi2dof);
-
- TVector3 locpos;
- emcRecPoint->GetLocalPosition(locpos);
- Int_t phosModule = emcRecPoint->GetPHOSMod();
- Int_t rpMult = emcRecPoint->GetMultiplicity();
- Int_t rpMultX, rpMultZ;
- ((AliPHOSEvalRecPoint*)emcRecPoint)->GetClusterLengths(rpMultX,rpMultZ);
- Float_t xrec = locpos.X();
- Float_t zrec = locpos.Z();
- Float_t dxmin = 1.e+10;
- Float_t dzmin = 1.e+10;
- Float_t r2min = 1.e+10;
- Float_t r2;
-
- Int_t nEMChits = (hitsPerModule[phosModule-1])->GetEntriesFast();
- Float_t locImpX=1e10,locImpZ=1e10; // local coords of closest impact
- Float_t gImpX=1e10, gImpZ=1e10,gImpY=1e10; // global coords of closest impact
- for (Int_t ihit=0; ihit<nEMChits; ihit++) {
- impact = (AliPHOSImpact*)(hitsPerModule[phosModule-1])->UncheckedAt(ihit);
- xgen = impact->X();
- zgen = impact->Z();
- ygen = impact->Y();
-
-
- //Transform to the local ref.frame
- Float_t phig = phosgeom->GetPHOSAngle(phosModule);
- Float_t phi = TMath::Pi()/180*phig;
- Float_t distanceIPtoEMC = phosgeom->GetIPtoCrystalSurface();
- Float_t xoL,yoL,zoL ;
-// xoL = xgen*TMath::Cos(phig)+ygen*TMath::Sin(phig) ;
-// yoL = -xgen*TMath::Sin(phig)+ygen*TMath::Cos(phig) + distanceIPtoEMC;
- xoL = xgen*TMath::Cos(phi)-ygen*TMath::Sin(phi) ;
- yoL = xgen*TMath::Sin(phi)+ygen*TMath::Cos(phi) + distanceIPtoEMC;
- zoL = zgen;
-
- r2 = TMath::Power((xoL-xrec),2) + TMath::Power((zoL-zrec),2);
- if ( r2 < r2min ) {
- r2min = r2;
- dxmin = xoL - xrec;
- dzmin = zoL - zrec;
- locImpX = xoL;
- locImpZ = zoL;
- gImpX = xgen;
- gImpZ = zgen;
- gImpY = ygen;
- }
- }
- AliInfo(Form(" Impact global (X,Z,Y) = %f %f %f", gImpX, gImpZ, gImpY));
- AliInfo(Form(" Impact local (X,Z) = %f %f", locImpX, locImpZ));
- AliInfo(Form(" Reconstructed (X,Z) = %f %f", xrec, zrec));
- AliInfo(Form(" dxmin %f dzmin %f", dxmin, dzmin)) ;
- hDx ->Fill(dxmin);
- hDz ->Fill(dzmin);
-// hDr ->Fill(TMath::Sqrt(r2min));
- hNrp ->Fill(rpMult);
- hNrpX->Fill(rpMultX);
- hNrpZ->Fill(rpMultZ);
- }
- delete [] hitsPerModule;
-
- AliInfo(Form("++++ Event %d : total %d impacts, %d Emc rec. points.",
- ievent, nTotalGen, please->EmcRecPoints()->GetEntriesFast())) ;
-
- }
- // Save histograms
-
- Text_t outputname[80] ;
- snprintf(outputname,80,"%s.analyzed",GetFileName().Data());
- TFile output(outputname,"update");
- output.cd();
-
- // Plot histograms
-
- TCanvas *emcCanvas = new TCanvas("Emc1","EMC analysis-I",20,20,800,400);
- gStyle->SetOptStat(111111);
- gStyle->SetOptFit(1);
- gStyle->SetOptDate(1);
- emcCanvas->Divide(3,2);
-
- emcCanvas->cd(1);
- gPad->SetFillColor(10);
- hNrp->SetFillColor(16);
- hNrp->Draw();
-
- emcCanvas->cd(2);
- gPad->SetFillColor(10);
- hNrpX->SetFillColor(16);
- hNrpX->Draw();
-
- emcCanvas->cd(3);
- gPad->SetFillColor(10);
- hNrpZ->SetFillColor(16);
- hNrpZ->Draw();
-
- emcCanvas->cd(4);
- gPad->SetFillColor(10);
- hDx->SetFillColor(16);
- hDx->Fit("gaus");
- hDx->Draw();
-
- emcCanvas->cd(5);
- gPad->SetFillColor(10);
- hDz->SetFillColor(16);
- hDz->Fit("gaus");
- hDz->Draw();
-
- emcCanvas->cd(6);
- gPad->SetFillColor(10);
- hChi2->SetFillColor(16);
- hChi2->Draw();
-
- emcCanvas->Write(0,kOverwrite);
-}
-
-//____________________________________________________________________________
-void AliPHOSIhepAnalyze::AnalyzeCPV2(Int_t Nevents)
-{
- // CPV analysis - part II.
- // Ratio of combinatoric distances between generated
- // and reconstructed hits.
- // Author: Boris Polichtchouk (polishchuk@mx.ihep.su)
- // 24 March 2001
-
-
- TH1F* hDrijCPVr = new TH1F("Drij_cpv_r","Distance between reconstructed hits in CPV",140,0,50);
- TH1F* hDrijCPVg = new TH1F("Drij_cpv_g","Distance between generated hits in CPV",140,0,50);
- TH1F* hDrijCPVratio = new TH1F("Drij_cpv_ratio","R_{ij}^{rec}/R_{ij}^{gen} in CPV",140,0,50);
-
-// TH1F* hT0 = new TH1F("hT0","Type of entering particle",20000,-10000,10000);
-
- hDrijCPVr->Sumw2();
- hDrijCPVg->Sumw2();
- hDrijCPVratio->Sumw2(); //correct treatment of errors
-
- TList * fCpvImpacts = new TList();
- TBranch * branchCPVimpacts;
-
- AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
- if ( please == 0 )
- {
- AliError(Form("Could not obtain the Loader object !"));
- return ;
- }
- AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
- fRunLoader->LoadHeader();
-
- for (Int_t nev=0; nev<Nevents; nev++)
- {
- printf("\n=================== Event %10d ===================\n",nev);
- fRunLoader->GetEvent(nev);
- Int_t ntracks = fRunLoader->GetHeader()->GetNtrack();
-
- Int_t nRecCPV = 0; // Reconstructed points in event
- Int_t nGenCPV = 0; // Impacts in event
-
- // Get branch of CPV impacts
- TTree* treeH = please->TreeH();
- if (treeH == 0x0)
- {
- AliError(Form("Can not get TreeH"));
- return;
- }
-
- if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return;
-
- // Create and fill arrays of hits for each CPV module
- Int_t nOfModules = phosgeom->GetNModules();
- TClonesArray **hitsPerModule = new TClonesArray *[nOfModules];
- Int_t iModule = 0;
- for (iModule=0; iModule < nOfModules; iModule++)
- hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100);
-
- TClonesArray *impacts;
- AliPHOSImpact *impact;
-
- for (Int_t itrack=0; itrack<ntracks; itrack++) {
- branchCPVimpacts ->SetAddress(&fCpvImpacts);
- AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK."));
- branchCPVimpacts ->GetEntry(itrack,0);
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- impacts = (TClonesArray *)fCpvImpacts->At(iModule);
- // Do loop over impacts in the module
- for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) {
- impact=(AliPHOSImpact*)impacts->At(iImpact);
- TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule];
- if(IsCharged(impact->GetPid()))
- new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact);
- }
- }
- fCpvImpacts->Clear();
- }
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- Int_t nsum = hitsPerModule[iModule]->GetEntriesFast();
- printf("CPV module %d has %d hits\n",iModule,nsum);
-
- AliPHOSImpact* genHit1;
- AliPHOSImpact* genHit2;
- Int_t irp1,irp2;
- for(irp1=0; irp1< nsum; irp1++)
- {
- genHit1 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp1));
- for(irp2 = irp1+1; irp2<nsum; irp2++)
- {
- genHit2 = (AliPHOSImpact*)((hitsPerModule[iModule])->At(irp2));
- Float_t dx = genHit1->X() - genHit2->X();
- Float_t dz = genHit1->Z() - genHit2->Z();
- Float_t dr = TMath::Sqrt(dx*dx + dz*dz);
- hDrijCPVg->Fill(dr);
-// AliInfo(Form("(dx dz dr): %f %f", dx, dz));
- }
- }
- }
-
-
- //--------- Combinatoric distance between rec. hits in CPV
-
- TObjArray* cpvRecPoints = please->CpvRecPoints();
- nRecCPV = cpvRecPoints->GetEntriesFast();
-
- if(nRecCPV)
- {
- AliPHOSCpvRecPoint* recHit1;
- AliPHOSCpvRecPoint* recHit2;
- TIter nextCPVrec1(cpvRecPoints);
- while(TObject* obj1 = nextCPVrec1() )
- {
- TIter nextCPVrec2(cpvRecPoints);
- while (TObject* obj2 = nextCPVrec2())
- {
- if(!obj2->IsEqual(obj1))
- {
- recHit1 = (AliPHOSCpvRecPoint*)obj1;
- recHit2 = (AliPHOSCpvRecPoint*)obj2;
- TVector3 locpos1;
- TVector3 locpos2;
- recHit1->GetLocalPosition(locpos1);
- recHit2->GetLocalPosition(locpos2);
- Float_t dx = locpos1.X() - locpos2.X();
- Float_t dz = locpos1.Z() - locpos2.Z();
- Float_t dr = TMath::Sqrt(dx*dx + dz*dz);
- if(recHit1->GetPHOSMod() == recHit2->GetPHOSMod())
- hDrijCPVr->Fill(dr);
- }
- }
- }
- }
-
- AliInfo(Form(" Event %d . Total of %d hits, %d rec.points.",
- nev, nGenCPV, nRecCPV)) ;
-
- delete [] hitsPerModule;
-
- } // End of loop over events.
-
-
-// hDrijCPVg->Draw();
-// hDrijCPVr->Draw();
- hDrijCPVratio->Divide(hDrijCPVr,hDrijCPVg);
- hDrijCPVratio->Draw();
-
-// hT0->Draw();
-
-}
-
-
-void AliPHOSIhepAnalyze::CpvSingle(Int_t nevents)
-{
- // Distributions of coordinates and cluster lengths of rec. points
- // in the case of single initial particle.
-
- TH1F* hZr = new TH1F("Zrec","Reconstructed Z distribution",150,-5,5);
- TH1F* hXr = new TH1F("Xrec","Reconstructed X distribution",150,-14,-2);
- TH1F *hChi2 = new TH1F("hChi2" ,"Chi2/dof of one-gamma fit",100, 0. , 20.);
-
- TH1S *hNrp = new TH1S("hNrp" ,"CPV rec.point multiplicity",21,-0.5,20.5);
- TH1S *hNrpX = new TH1S("hNrpX","CPV rec.point Phi-length" ,21,-0.5,20.5);
- TH1S *hNrpZ = new TH1S("hNrpZ","CPV rec.point Z-length" ,21,-0.5,20.5);
-
- AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
- if ( gime == 0 )
- {
- AliError(Form("Could not obtain the Loader object !"));
- return ;
- }
-
- for(Int_t ievent=0; ievent<nevents; ievent++)
- {
- fRunLoader->GetEvent(ievent);
- if(gime->CpvRecPoints()->GetEntriesFast()>1) continue;
-
- AliPHOSCpvRecPoint* pt = (AliPHOSCpvRecPoint*)(gime->CpvRecPoints())->At(0);
- if(pt) {
- TVector3 lpos;
- pt->GetLocalPosition(lpos);
- hXr->Fill(lpos.X());
- hZr->Fill(lpos.Z());
-
- Int_t rpMult = pt->GetMultiplicity();
- hNrp->Fill(rpMult);
- Int_t rpMultX, rpMultZ;
- pt->GetClusterLengths(rpMultX,rpMultZ);
- hNrpX->Fill(rpMultX);
- hNrpZ->Fill(rpMultZ);
- hChi2->Fill(((AliPHOSEvalRecPoint*)pt)->Chi2Dof());
- AliInfo(Form("+++++ Event %d . (Mult,MultX,MultZ) = %d %d %d +++++",
- ievent, rpMult, rpMultX, rpMultZ)) ;
-
- }
-
- }
-
- Text_t outputname[80] ;
- snprintf(outputname,80,"%s.analyzed.single",GetFileName().Data());
- TFile output(outputname,"RECREATE");
- output.cd();
-
- // Plot histograms
- TCanvas *cpvCanvas = new TCanvas("SingleParticle","Single particle events",20,20,800,400);
- gStyle->SetOptStat(111111);
- gStyle->SetOptFit(1);
- gStyle->SetOptDate(1);
- cpvCanvas->Divide(3,2);
-
- cpvCanvas->cd(1);
- gPad->SetFillColor(10);
- hXr->SetFillColor(16);
- hXr->Draw();
-
- cpvCanvas->cd(2);
- gPad->SetFillColor(10);
- hZr->SetFillColor(16);
- hZr->Draw();
-
- cpvCanvas->cd(3);
- gPad->SetFillColor(10);
- hChi2->SetFillColor(16);
- hChi2->Draw();
-
- cpvCanvas->cd(4);
- gPad->SetFillColor(10);
- hNrp->SetFillColor(16);
- hNrp->Draw();
-
- cpvCanvas->cd(5);
- gPad->SetFillColor(10);
- hNrpX->SetFillColor(16);
- hNrpX->Draw();
-
- cpvCanvas->cd(6);
- gPad->SetFillColor(10);
- hNrpZ->SetFillColor(16);
- hNrpZ->Draw();
-
- cpvCanvas->Write(0,kOverwrite);
-
-}
-
-void AliPHOSIhepAnalyze::HitsCPV(Int_t nev)
-{
- // Cumulative list of charged CPV impacts in event nev.
-
- AliPHOSLoader* please = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
- if ( please == 0 )
- {
- AliError(Form("Could not obtain the Loader object !"));
- return ;
- }
-
-
- printf("\n=================== Event %10d ===================\n",nev);
- //16.03.2011: DP. Code below seems to be obsollete
- //Comment it to sutisfy Coverity
-/*
- TList * fCpvImpacts ;
- TBranch * branchCPVimpacts;
-
- AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
-
- fRunLoader->GetEvent(nev);
- Int_t ntracks = fRunLoader->GetHeader()->GetNtrack();
-
-// Int_t nRecCPV = 0; // Reconstructed points in event // 01.10.2001
-// Int_t nGenCPV = 0; // Impacts in event
-
- // Get branch of CPV impacts
- TTree* treeH = please->TreeH();
- if (treeH == 0x0)
- {
- AliError(Form("Can not get TreeH"));
- return;
- }
-
- if (! (branchCPVimpacts =treeH->GetBranch("PHOSCpvImpacts")) ) return;
-
- // Create and fill arrays of hits for each CPV module
- Int_t nOfModules = phosgeom->GetNModules();
- TClonesArray **hitsPerModule = new TClonesArray *[nOfModules];
- Int_t iModule = 0;
- for (iModule=0; iModule < nOfModules; iModule++)
- hitsPerModule[iModule] = new TClonesArray("AliPHOSImpact",100);
-
- TClonesArray *impacts;
- AliPHOSImpact *impact;
-
- for (Int_t itrack=0; itrack<ntracks; itrack++) {
- branchCPVimpacts ->SetAddress(&fCpvImpacts);
- AliInfo(Form(" branchCPVimpacts ->SetAddress(&fCpvImpacts) OK."));
- branchCPVimpacts ->GetEntry(itrack,0);
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- impacts = (TClonesArray *)fCpvImpacts->At(iModule);
- // Do loop over impacts in the module
- for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) {
- impact=(AliPHOSImpact*)impacts->At(iImpact);
- TClonesArray &lhits = *(TClonesArray *)hitsPerModule[iModule];
- new(lhits[hitsPerModule[iModule]->GetEntriesFast()]) AliPHOSImpact(*impact);
- }
- }
- fCpvImpacts->Clear();
- }
-
- for (iModule=0; iModule < nOfModules; iModule++) {
- Int_t nsum = hitsPerModule[iModule]->GetEntriesFast();
- printf("CPV module %d has %d hits\n",iModule,nsum);
- }
-
-*/
-
-
-// TList * fCpvImpacts ;
-// TBranch * branchCPVimpacts;
-// AliPHOSImpact* impact;
-// TClonesArray* impacts;
-
-// AliPHOSLoader * please = AliPHOSLoader::GetInstance(GetFileName().Data(),"PHOS");
-// const AliPHOSGeometry * fGeom = please->PHOSGeometry();
-
-// Int_t ntracks = gAlice->GetEvent(ievent);
-// Int_t nOfModules = fGeom->GetNModules();
-// AliInfo(Form(" Tracks: "<<ntracks<<" Modules: "<<nOfModules));
-
-// if (! (branchCPVimpacts =gAlice->TreeH()->GetBranch("PHOSCpvImpacts")) ) return;
-
-// for (Int_t itrack=0; itrack<ntracks; itrack++) {
-// branchCPVimpacts ->SetAddress(&fCpvImpacts);
-// Info("AnalyzeCPV1", " branchCPVimpacts ->SetAddress(&fCpvImpacts) OK.");
-// branchCPVimpacts ->GetEntry(itrack,0);
-// Info(Form(" branchCPVimpacts ->GetEntry(itrack,0) OK."));
-
-// for (Int_t iModule=0; iModule < nOfModules; iModule++) {
-// impacts = (TClonesArray *)fCpvImpacts->At(iModule);
-// Info(Form(" fCpvImpacts->At(iModule) OK."));
-// // Do loop over impacts in the module
-// for (Int_t iImpact=0; iImpact<impacts->GetEntries(); iImpact++) {
-// impact=(AliPHOSImpact*)impacts->At(iImpact);
-// impact->Print();
-// if(IsCharged(impact->GetPid()))
-// {
-// Info(Form(" Add charged hit.."));
-// new(hits[hits.GetEntriesFast()]) AliPHOSImpact(*impact);
-// Info(Form("done."));
-// }
-// }
-// }
-// fCpvImpacts->Clear();
-// }
-
-// Info(Form(" PHOS event "<<ievent<<": "<<hits.GetEntries()<<" charged CPV hits."));
-
-}
-
-
-// void AliPHOSIhepAnalyze::ChargedHitsCPV(TClonesArray* hits, Int_t ievent, Int_t iModule)
-// {
-// // Cumulative list of charged CPV hits in event ievent
-// // in PHOS module iModule.
-
-// HitsCPV(hits,ievent,iModule);
-// TIter next(hits);
-
-// while(AliPHOSCPVHit* cpvhit = (AliPHOSCPVHit*)next())
-// {
-// if(!IsCharged(cpvhit->GetIpart()))
-// {
-// hits->Remove(cpvhit);
-// delete cpvhit;
-// hits->Compress();
-// }
-// }
-
-// Info(Form(" PHOS module "<<iModule<<": "<<hits->GetEntries()<<" charged CPV hits."));
-// }
-
-Bool_t AliPHOSIhepAnalyze::IsCharged(Int_t pdgCode)
-{
- // For HIJING
- AliInfo(Form("pdgCode %d", pdgCode));
- if(pdgCode==211 || pdgCode==-211 || pdgCode==321 || pdgCode==-321 || pdgCode==11 || pdgCode==-11 || pdgCode==2212 || pdgCode==-2212) return kTRUE;
- else
- return kFALSE;
-}
-//---------------------------------------------------------------------------
-
-
-
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff