message: ATO-465- automatically use sqrts from AliESDrun+ store in the tree
diff: @@ -342,6 +342,9 @@ void AliAnalysisTaskFilteredTree::UserExec(Option_t *)
  AliInfo("ToFix: MC stack not available. Prefered MCEvent() will return 0");
  }
  }
  + Float_t cms = fESD->GetESDRun()->GetBeamEnergy();
  + if (cms>0) fSqrtS=2*cms;
  +
  if(fUseESDfriends) {
  //fESDfriend = dynamic_cast<AliESDfriend*>(fESD->FindListObject("AliESDfriend"));
  @@ -1512,6 +1515,7 @@ void AliAnalysisTaskFilteredTree::ProcessAll(AliESDEvent *const esdEvent, AliMCE
  (*fTreeSRedirector)<<"highPt"<<
  "downscaleCounter="<<downscaleCounter<<
  "fLowPtTrackDownscaligF="<<fLowPtTrackDownscaligF<<
  + "sqrtS="<<fSqrtS<< // sqrt s as used for downsampling
  "selectionPtMask="<<selectionPtMask<< // high pt trigger mask
  "selectionPtMaskMC="<<selectionPtMaskMC<< // high pt trigger mask based on MC if available
  "selectionPIDMask="<<selectionPIDMask<< // selection PIDmask
  