message: Bug fix in TildePhi definition.
diff: @@ -2850,8 +2850,8 @@ void AliAnalysisTaskUPCforward::UserExec(Option_t *)
  Double_t PhiHelicityFrameValue7 = CosPhiHelicityFrame( muonsCopy2[0], muonsCopy2[1], possibleJPsiCopy );
  // Double_t TildePhiPositiveCosTheta = CosThetaHelicityFrameValue7 - 0.25 * TMath::Pi();
  // Double_t TildePhiNegativeCosTheta = CosThetaHelicityFrameValue7 - 0.75 * TMath::Pi();
  - Double_t TildePhiPositiveCosTheta = CosThetaHelicityFrameValue7 - 0.25 * 3.14;
  - Double_t TildePhiNegativeCosTheta = CosThetaHelicityFrameValue7 - 0.75 * 3.14;
  + Double_t TildePhiPositiveCosTheta = PhiHelicityFrameValue7 - 0.25 * 3.14;
  + Double_t TildePhiNegativeCosTheta = PhiHelicityFrameValue7 - 0.75 * 3.14;
  for(Int_t iCosThetaBins = 0; iCosThetaBins < 25; iCosThetaBins++) {
  if( controlFlag13 == 1) break;
  if( (CosThetaHelicityFrameValue7 + 1.) < 2.*((Double_t)iCosThetaBins + 1.)/25. ){
  