From: kharlov <kharlov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Sat, 10 Aug 2013 15:51:48 +0000 (+0000)
Subject: Bug in weight setting is fixed (Boris Polishchuk)
X-Git-Url: http://git.uio.no/git/?a=commitdiff_plain;h=027589f5727e642275bf8e0c38c0433774ae30e0;p=u%2Fmrichter%2FAliRoot.git

Bug in weight setting is fixed (Boris Polishchuk)
---

diff --git a/PWGGA/PHOSTasks/PHOS_PbPb/AliAnalysisTaskPi0FlowMC.cxx b/PWGGA/PHOSTasks/PHOS_PbPb/AliAnalysisTaskPi0FlowMC.cxx
index 8a0119fd645..704aba07da6 100644
--- a/PWGGA/PHOSTasks/PHOS_PbPb/AliAnalysisTaskPi0FlowMC.cxx
+++ b/PWGGA/PHOSTasks/PHOS_PbPb/AliAnalysisTaskPi0FlowMC.cxx
@@ -403,9 +403,7 @@ void AliAnalysisTaskPi0FlowMC::ConsiderPi0s()
       TLorentzVector pv12 = *(ph1->GetMomV2()) + *(ph2->GetMomV2());
       
       const Double_t w2 = ph2->GetWeight();
-      Double_t w = w1*w2;
-      if( FindCommonParent(ph1->GetPrimary(), ph1->GetPrimary()) )
-	w = w1*w2;
+      Double_t w = TMath::Sqrt(w1*w2);
       
       FillHistogram("hPHOSphi",fCentralityV0M,p12.Pt(),p12.Phi(), w) ;
       Double_t dphiA=p12.Phi()-fRPV0A ;
@@ -669,7 +667,7 @@ void AliAnalysisTaskPi0FlowMC::ConsiderPi0sMix()
 	TLorentzVector pv12 = *(ph1->GetMomV2()) + *(ph2->GetMomV2());
 	
 	const Double_t w2 = ph2->GetWeight();
-	Double_t w = w1*w2;
+	Double_t w = TMath::Sqrt(w1*w2);
 
 	Double_t dphiA=p12.Phi()-fRPV0A ;
 	while(dphiA<0)dphiA+=TMath::Pi() ;