Formula for flattening corrected

diff --git a/PWGGA/PHOSTasks/PHOS_PbPb/AliPHOSEPFlattener.cxx b/PWGGA/PHOSTasks/PHOS_PbPb/AliPHOSEPFlattener.cxx
index 1df3987a55df8da3534be3dddbdd849a81dabed1..0207d0a6bc4e64eba45ef05d8230007dbc465c73 100644 (file)
--- a/PWGGA/PHOSTasks/PHOS_PbPb/AliPHOSEPFlattener.cxx
+++ b/PWGGA/PHOSTasks/PHOS_PbPb/AliPHOSEPFlattener.cxx
@@ -117,8 +117,8 @@ Double_t AliPHOSEPFlattener::MakeFlat(Double_t oldPhi,Double_t centrality)const
   icen=icen*fNHarmonics ;
 
   for(Int_t i = 1; i<=fNHarmonics/2; i++){
-    Double_t c = 1./i*fParam[icen+2*i-2] ;  //Mean cos(n*phi) for a given centrality
-    Double_t s = 1./i*fParam[icen+2*i-1]; //Mean sin(n*phi) for a given centrality
+    Double_t c = 2./i*fParam[icen+2*i-2] ;  //fParam==Mean cos(n*phi) for a given centrality
+    Double_t s = 2./i*fParam[icen+2*i-1];   //fParam==Mean sin(n*phi) for a given centrality
     result += c*TMath::Sin(i*oldPhi)-s*TMath::Cos(i*oldPhi) ;      
   }
   return result ;