updates and tuning for the central train run (data and MC)

[u/mrichter/AliRoot.git] / PWG3 / dielectron / AliDielectronSignalBase.h

diff --git a/PWG3/dielectron/AliDielectronSignalBase.h b/PWG3/dielectron/AliDielectronSignalBase.h
index 5be8247dbe3caf531253bfdaa63c732269950e7f..5ab434c73be44adb1f82cbf319d9e1ed9d95cd5e 100644 (file)
--- a/PWG3/dielectron/AliDielectronSignalBase.h
+++ b/PWG3/dielectron/AliDielectronSignalBase.h
@@ -65,8 +65,8 @@ public:
   Double_t GetMassWidth()            const { return fValues(5);}
   Double_t GetMassWidthError()       const { return fErrors(5);}
 
-  TH1F* GetSignalHistogram()        {return fHistSignal;}
-  TH1F* GetBackgroundHistogram()    {return fHistBackground;}
+  TH1F* GetSignalHistogram()      const {return fHistSignal;}
+  TH1F* GetBackgroundHistogram()  const {return fHistBackground;}
 
   virtual void Print(Option_t *option="") const;