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PU Peak2 and Multiplicity Cuts. PU peak2 cut: yield versus lumi Timing: L1VeloClusters cut Status of note on L1L0 eff vs mult. cuts. PU peak2 cut: Yield vs Lumi. Marko Zupan and MFL Two errors found on both sides (all fixed now): Both: L1 returns incomplete if L0=false

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pu peak2 and multiplicity cuts
PU Peak2 and Multiplicity Cuts
  • PU peak2 cut: yield versus lumi
  • Timing: L1VeloClusters cut
  • Status of note on L1L0 eff vs mult. cuts
pu peak2 cut yield vs lumi
PU peak2 cut: Yield vs Lumi
  • Marko Zupan and MFL
  • Two errors found on both sides (all fixed now):
    • Both: L1 returns incomplete if L0=false
    • MZ: dimuon was never triggering
    • MFL: forgot to recalculate ratio of ncoll>0 / ncoll=0 which depends on luminosity
  • Still waiting for full stats to get better numbers at high luminosity. Currently:
    • MZ: 200k MBIA, 2300 Bs->DsK
    • MFL: 500k MBIA, 2300 Bs->DsK
yield and effs vs lumi
Yield and Effs. vs Lumi
  • Marko Zupan: solid symbols with dashed curve
  • MFL: open symbols with solid curve
  • Triangles: no pk2 cut
  • Circles: pk2 cut = 3
  • Still some discrepancy left in L1 eff. Due to low stats ? To be understood…
gain in l1 time and l1veloclusters cut
Gain in L1 time and L1VeloClusters cut

No cut

No cut

L0: No pk2 and multipl. cuts L0: nominal pk2 and multipl. cuts

l1l0 multipl cuts note
L1L0_multipl_cuts note
  • The note is on its way
  • Circulate draft before the week-end
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