TString *fTotalQvector; // total Q-vector is: "QaQb" (means Qa+Qb), "Qa" or "Qb"
ClassDef(AliAnalysisTaskScalarProduct, 1); // example of analysis
TString *fTotalQvector; // total Q-vector is: "QaQb" (means Qa+Qb), "Qa" or "Qb"
ClassDef(AliAnalysisTaskScalarProduct, 1); // example of analysis