From: hristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Wed, 31 Jan 2007 14:42:32 +0000 (+0000)
Subject: Correction in the photon generation (Gustavo)
X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=commitdiff_plain;h=21f3a383c8c3cabba9fc4dd3e3df09ee7d88bf9a;ds=sidebyside

Correction in the photon generation (Gustavo)
---

diff --git a/PYTHIA6/AliGenPythia.cxx b/PYTHIA6/AliGenPythia.cxx
index 1844a3d3a8a..9ad2f82d53f 100644
--- a/PYTHIA6/AliGenPythia.cxx
+++ b/PYTHIA6/AliGenPythia.cxx
@@ -840,8 +840,10 @@ Int_t  AliGenPythia::GenerateMB()
 	TParticle* iparticle = (TParticle *) fParticles->At(i);
 	if(iparticle->GetStatusCode()==1 && iparticle->GetPdgCode()==pdg && 
 	   iparticle->Pt() > fFragPhotonOrPi0MinPt){
+	  Int_t imother = iparticle->GetFirstMother();
+	  TParticle* pmother = (TParticle *) fParticles->At(imother);
 	  if(pdg == 111 || 
-	     (pdg == 22 && iparticle->GetFirstMother() != 11))//No photon from hadron decay
+	     (pdg == 22 && pmother->GetStatusCode() != 11))//No photon from hadron decay
 	    {
 	      Float_t phi = iparticle->Phi()*180./TMath::Pi(); //Convert to degrees
 	      Float_t eta =TMath::Abs(iparticle->Eta());//in calos etamin=-etamax