LHCb Status Report - CERN

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2009 data — Open Velo XY projection YZ projection 6.8 ± 1.0 µb −1 at √ s = 900 GeV with Velo 15 mm from nominal position We have taken O � 300 µb −1� this week-end with Velo 10 mm from nominal position and both magnet polarities Patrick Koppenburg LHCb Status Report 101 st LHCC — 5 May 2010 [18/39]
K 0 S Production at √ s = 900 GeV Measure K 0 S First Public LHCb Result without using VeLo ➜ K 0 S pT distributions in 3 rapidity bins Compare to Pythia 6.4 with Perugia0 tuning Luminosity determined through LHCb measurement of beam-beam and beam-gas profile ➜ Achieved 15% precision (dominant uncertainty LHC currents) Λ, Λ and p, p also in the pipeline Patrick Koppenburg LHCb Status Report 101 st LHCC — 5 May 2010 [19/39]
Page 1 and 2: LHCb Status Report LHCb Luminosity,
Page 3 and 4: Luminosity at 3.5 TeV Patrick Koppe
Page 5 and 6: Trigger Operations Minimum bias: We
Page 7 and 8: Magnet Polarity We can swap the mag
Page 9 and 10: Velo VeLo Velo closed for the first
Page 11 and 12: Velo VeLo ✔ Hit residuals as expe
Page 13 and 14: Velo VeLo ✔ Hit residuals as expe
Page 15 and 16: Outer Tracker Tracker Detector is 1
Page 17: Zoology 1 — K 0 VeLo S , Λ, Ξ,
Page 21 and 22: Zoology 2: φ and K ∗ ➜ φ →
Page 23 and 24: Zoology 3: D → Kπ and D ∗ Unta
Page 25 and 26: RICH-ID Proton-ID efficiency and mi
Page 27 and 28: Zoology 5: D 0 → Kπππ Untagged
Page 29 and 30: Zoology 6: Using π 0 η → πππ
Page 31 and 32: Zoology 7 : J/ψ → µµ Patrick K
Page 33 and 34: B + Candidate Patrick Koppenburg LH
Page 35 and 36: Semileptonic Candidates Looking at
Page 37 and 38: LHCb Trigger (2010) ✔ Hardware-ba
Page 39: Conclusion LHCb in a good shape Som

LHCb Status Report - CERN

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