From d6faca62e5d6030daab6fd2d6148712e1127716b Mon Sep 17 00:00:00 2001 From: schutz Date: Tue, 10 Feb 2004 17:25:42 +0000 Subject: [PATCH] updating --- PHOS/AnaESD.C | 138 +++++++++++++++++++++++++++++--------------------- 1 file changed, 79 insertions(+), 59 deletions(-) diff --git a/PHOS/AnaESD.C b/PHOS/AnaESD.C index e5444710d47..165561e2551 100644 --- a/PHOS/AnaESD.C +++ b/PHOS/AnaESD.C @@ -25,6 +25,7 @@ #if !defined(__CINT__) || defined(__MAKECINT__) #include "TFile.h" #include "TMath.h" +#include "TH1D.h" #include "AliPHOSGetter.h" #include "AliPHOSGeometry.h" #include "Riostream.h" @@ -36,79 +37,98 @@ #include "AliKalmanTrack.h" #endif +Double_t Match(TParticle * pp, AliESDtrack * cp) ; +TH1D * heta = new TH1D("heta", "Eta correlation", 100, -2., 2.) ; +TH1D * hphi = new TH1D("hphi", "Phi correlation", 360, 0., 360.) ; + void Ana() -{ +{ AliPHOSGetter * gime = AliPHOSGetter::Instance("galice.root") ; Int_t nEvent = gime->MaxEvent() ; Int_t event ; AliESD * esd = 0 ; for (event = 0 ; event < nEvent; event++) { esd = gime->ESD(event) ; - esd->Print(); - Int_t index ; + //esd->Print(); + Int_t caloindex ; // Calorimeter tracks AliESDCaloTrack * ct ; - AliPHOSRecParticle * pp ; - AliEMCALRecParticle * ep ; - for (index = 0 ; index < esd->GetNumberOfCaloTracks() ; index++) { - ct = esd->GetCaloTrack(index) ; - pp = dynamic_cast(ct->GetRecParticle()) ; - ep = dynamic_cast(ct->GetRecParticle()) ; - if (pp) { - TVector3 pos = pp->GetPos() ; - cout << "PHOS particle # " << index << " pos (" - << pos.X() << ", " << pos.Y() << ", " <PHOSGeometry()->ImpactOnEmc(pos.Theta(), pos.Phi(), n, z, x) ; - if (n) - cout << "Matching: " << n << " " << z << " " << x << endl ; - } - if(ep) { - TVector3 pos = ep->GetPos() ; - //cout << "EMCAL particle # " << index << " pos " << - // TMath::Sqrt(pos.X()*pos.X() + pos.Y()*pos.Y() ) << endl ; + for (caloindex = 0 ; caloindex < esd->GetNumberOfCaloTracks() ; caloindex++) { + // get the calorimeter type of particles (PHOS or EMCAL) + ct = esd->GetCaloTrack(caloindex) ; + TParticle * part = ct->GetRecParticle() ; + + AliESDtrack * cp ; + Int_t cpindex ; + for (cpindex = 0 ; cpindex < esd->GetNumberOfTracks() ; cpindex++) { + // get the charged tracks from central tracking + cp = esd->GetTrack(cpindex) ; + Double_t dist = Match(part, cp) ; + + if (dist < 99999.) + cout << "================ Distance = " << dist << endl ; } } - //Charged tracks from central tracking - AliESDtrack * cp ; - for (index = 0 ; index < esd->GetNumberOfTracks() ; index++) { - cp = esd->GetTrack(index) ; - Double_t xyzAtPHOS[3] ; - cp->GetOuterXYZ(xyzAtPHOS) ; - // check if the track reaches PHOS - if ( (xyzAtPHOS[0] + xyzAtPHOS[1] + xyzAtPHOS[2]) == 0.) - continue; - // the next check are only if we want high quality tracks + } + // heta->Draw() ; + hphi->Draw() ; +} +Double_t Match(TParticle * part, AliESDtrack * cp) +{ + // Calculates the distance (x,z) between the particle detected by PHOS and + // the charged particle reconstructed by the global tracking + + Double_t dist = 99999. ; + + AliPHOSRecParticle * pp = dynamic_cast(part) ; + AliEMCALRecParticle * ep = dynamic_cast(part) ; + + Int_t phN ; + Double_t phZ, phX ; + + if (pp) { // it is a PHOS particle + + // cout << "PHOS particle # " << " pos (" +// << pp->GetPos().X() << ", " << pp->GetPos().Y() << ", " << pp->GetPos().Z() << ")" << endl ; + + AliPHOSGetter * gime = AliPHOSGetter::Instance() ; + gime->PHOSGeometry()->ImpactOnEmc(*pp, phN, phZ, phX) ; + Double_t xyzAtPHOS[3] ; + cp->GetOuterXYZ(xyzAtPHOS) ; + if ( (xyzAtPHOS[0] + xyzAtPHOS[1] + xyzAtPHOS[2]) != 0.) { //it has reached PHOS + //the next check are only if we want high quality tracks // ULong_t status = cp->GetStatus() ; // if ((status & AliESDtrack::kTRDput)==0) - // continue; + // do not continue; // if ((status & AliESDtrack::kTRDStop)!=0) - // continue; - - // Gets the Global coordinate of the track at the entrance of PHOS - - TVector3 poscp(xyzAtPHOS[0], xyzAtPHOS[1], xyzAtPHOS[2]) ; - cout << "Charged particle # " << index << " pos (" - << poscp.X() << ", " << poscp.Y() << ", " <PHOSGeometry()->ImpactOnEmc(poscp.Theta(), poscp.Phi(), n, z, x) ; - if (n) - cout << "Matching: " << n << " " << z << " " << x << endl ; - // Does the matching with PHOS/EMCAL -// for (index = 0 ; index < esd->GetNumberOfCaloTracks() ; index++) { -// ct = esd->GetCaloTrack(index) ; -// pp = dynamic_cast(ct->GetRecParticle()) ; -// ep = dynamic_cast(ct->GetRecParticle()) ; -// if (pp) { -// TVector3 pos = pp->GetPos() ; -// } -// } + // do not continue; +// cout << "Charged particle # " << " pos (" +// << xyzAtPHOS[0] << ", " << xyzAtPHOS[1] << ", " << xyzAtPHOS[2] << ")" << endl ; + TVector3 poscp(xyzAtPHOS[0], xyzAtPHOS[1], xyzAtPHOS[2]) ; + Int_t cpN ; + Double_t cpZ,cpX ; + gime->PHOSGeometry()->ImpactOnEmc(poscp, cpN, cpZ, cpX) ; + if (cpN) {// we are inside the PHOS acceptance +// cout << "Charged Matching 1: " << cpN << " " << cpZ << " " << cpX << endl ; +// cout << "Charged Matching 2: " << phN << " " << phZ << " " << phX << endl ; + dist = TMath::Sqrt( (cpZ-phZ)*(cpZ-phZ) + (cpX-phX)*(cpX-phX)) ; + } + Double_t phTheta = pp->Theta() ; + Double_t phPhi = pp->Phi() ; + TParticle tempo ; + tempo.SetMomentum(xyzAtPHOS[0], xyzAtPHOS[1], xyzAtPHOS[2], 0.) ; + Double_t cpTheta = tempo.Theta() ; + Double_t cpPhi = tempo.Phi() ; + //cout << phTheta << " " << phPhi << " " << endl + //cout << cpTheta << " " << cpPhi-phPhi << " " << endl ; + heta->Fill( (phTheta - cpTheta)*TMath::RadToDeg() ) ; + hphi->Fill( (phPhi - cpPhi)*TMath::RadToDeg() ) ; } } + + if (ep) { + //cout << "EMCAL particle # " << endl ; + } + return dist ; } + -- 2.18.4