fix bug when evaluating contamination for postive particles

[u/mrichter/AliRoot.git] / PWGPP / pid / AliAnalysisTaskLambdaBayes.cxx

diff --git a/PWGPP/pid/AliAnalysisTaskLambdaBayes.cxx b/PWGPP/pid/AliAnalysisTaskLambdaBayes.cxx
index 276a44774c3c611852376f72f55ba0ad7fb7c4d2..d83390a7b9b0920d86246ba7d67e21ab0deb1d98 100644 (file)
--- a/PWGPP/pid/AliAnalysisTaskLambdaBayes.cxx
+++ b/PWGPP/pid/AliAnalysisTaskLambdaBayes.cxx
@@ -754,6 +754,8 @@ void AliAnalysisTaskLambdaBayes::Analyze(AliAODEvent* aodEvent)
     }
 
     // use sigmaTOF instead of sigmaComb
+    nSigmaTOFRef = TMath::Abs(nSigmaTOFRef);
+
     if(tofMatch1){
       nSigmaComb = nSigmaTOF;
       nSigmaCombRef = nSigmaTOFRef;