Processing SPD Mean Vertex only in PHYSICS runs.

[u/mrichter/AliRoot.git] / STEER / AliESDv0.cxx

diff --git a/STEER/AliESDv0.cxx b/STEER/AliESDv0.cxx
index c963f8cb756f058f8db7288bc0c431ca1eb77b9e..2b01157a1bc77e0e7cea7927565877b7e2ca6516 100644 (file)
--- a/STEER/AliESDv0.cxx
+++ b/STEER/AliESDv0.cxx
@@ -318,7 +318,7 @@ Double_t AliESDv0::AlphaV0() const {
   TVector3 momTot(Px(),Py(),Pz());
 
   Double_t lQlNeg = momNeg.Dot(momTot)/momTot.Mag();
-  Double_t lQlPos = momNeg.Dot(momTot)/momTot.Mag();
+  Double_t lQlPos = momPos.Dot(momTot)/momTot.Mag();
 
   return 1.-2./(1.+lQlNeg/lQlPos);
 }