LHCb Status Report - CERN

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Trigger Strategy L0: Based on Calo, Muon and Pile-up MB triggers: HCAL, SPD, CALO, MUON, Pile-Up . . . c,b triggers: Electron, Photon, Hadron, Muon, Di-Muon, π 0 Luminosity: Muon, Di-Muon, Beam-Gas Readout Supervisor: Passes on L0 decision and adds random triggers Knows about bunch structure. HLT: software based on “everything” Micro-Bias: At least one track in velo (RZ), or T stations No-Bias: 100 Hz of random Patrick Koppenburg LHCb Status Report 101 st LHCC — 5 May 2010 [4/39]
Trigger Operations Minimum bias: We can take minimum bias at full rate at the moment No bias: 100 Hz of no bias events (including 1 Hz beam-gas) Hlt1: Standard selections in parallel with pass-all Patrick Koppenburg LHCb Status Report 101 st LHCC — 5 May 2010 [5/39]
Page 1 and 2: LHCb Status Report LHCb Luminosity,
Page 3: Luminosity at 3.5 TeV Patrick Koppe
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 and 18: Zoology 1 — K 0 VeLo S , Λ, Ξ,
Page 19 and 20: K 0 S Production at √ s = 900 GeV
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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