Check on curvature not position

[u/mrichter/AliRoot.git] / TPC / AliTPCpidESD.cxx

diff --git a/TPC/AliTPCpidESD.cxx b/TPC/AliTPCpidESD.cxx
index c84c84da3d58fc1843ed161d6a2c34e19ebfc9a1..32a21190560223088b5bd2ec582b303f3b887978 100644 (file)
--- a/TPC/AliTPCpidESD.cxx
+++ b/TPC/AliTPCpidESD.cxx
@@ -68,10 +68,10 @@ Int_t AliTPCpidESD::MakePID(AliESD *event)
       Double_t bethe=Bethe(mom/mass); 
       Double_t sigma=fRes*bethe;
       if (TMath::Abs(dedx-bethe) > fRange*sigma) {
-       p[j]=0.;
+       p[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
         continue;
       }
-      p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma));
+      p[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
     }
     t->SetTPCpid(p);
   }