PI/LHCb presentation - LHCb - Cern

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Cherenkov angle Aerogel C 4 F 10 CF 4 RICH Detectors 242 mrad 53 mrad 32 mrad Stephanie Hansmann-Menzemer 102 nd LHCC Meeting, 07.07.2010 24
RICH 1: aerogel Single Photon Resolution Δθ [rad] σ = 4-5 mrad (MC: 2.6 mrad) σ = 7 mrad preliminary calibration of individual tiles Δθ [rad] remaining difference due to C 4 F 10 contamination RICH 1: C 4 F 10 (MC: 1.57 mrad) RICH 2: CF 4 (MC: 0.67 mrad) RICH alignment upate → 1.8 mrad (not yet in production) RICH alignment upate → 0.88 mrad (not yet in production) Δθ [rad] Stephanie Hansmann-Menzemer 102 nd LHCC Meeting, 07.07.2010 25
Page 1 and 2: Tracking Report Stephanie Hansmann-
Page 3 and 4: Trigger and Data Taking Stephanie H
Page 5 and 6: Pile-up system Calorimeter Muon sys
Page 7 and 8: HLT1 minimum bias HLT1 physics pass
Page 9 and 10: GRID-Computing data successfully sh
Page 11 and 12: Vertex Locator precision measuremen
Page 13 and 14: new alignment including z translati
Page 15 and 16: Silicon Tracker IT 98.6% of channel
Page 17 and 18: Invariant Mass Resolution Very prec
Page 19 and 20: D → Kπππ D → Kπ Tracking Ef
Page 21 and 22: Muon ID Performance MuonID efficien
Page 23: Electron Identification J/ψ→ ee
Page 27 and 28: D * →D°(Kπ)π L = 2.7 nb -1 RIC
Page 29 and 30: Luminosity Measurement (some modifi
Page 31 and 32: 900 GeV 7 TeV Strange Hadron Ratios
Page 33 and 34: - clear contribution from D from b
Page 35: LHCb in very good shape! Conclusion

PI/LHCb presentation - LHCb - Cern

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