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D0 Weekly Summary: Nov. 24 – Dec. 1

D0 Weekly Summary: Nov. 24 – Dec. 1. Started to take Physics Data! Overall status – OK D0 Silicon detector status: Worked in all runs and no major problems discovered The number of disabled HDIs slowly increased to 114 (12.5%) Before shutdown we had 136 HDIs disabled

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D0 Weekly Summary: Nov. 24 – Dec. 1

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  1. D0 Weekly Summary: Nov. 24 – Dec. 1 • Started to take Physics Data! • Overall status – OK • D0 Silicon detector status: • Worked in all runs and no major problems discovered • The number of disabled HDIs slowly increased to 114 (12.5%) • Before shutdown we had 136 HDIs disabled • Finally we enabled 40 HDIs and disabled 18 “new” HDIs (but most of them came from the list of unstable HDIs) • Almost all enabled HDIs (except of 2-3) participate in track reconstruction! S.Burdin

  2. Silicon related plots Plots from the last week run S.Burdin

  3. Fiber Tracker • Stable running • Known issues: • ~10 SVX chips are not yet fully operational… S.Burdin

  4. Calorimeter • had problem with LV PS early in the week – Currently OK S.Burdin

  5. Muon System • Stably working in Global runs • 3 PDTs out of 94 are not working well • ~1 hour access is needed to replace the Front End electronics (no rush) S.Burdin

  6. Triggers & Collected Data • Trigger rates are OK @ L1,L2,L3 • The FEB is a little higher • ~15% @ 1.5kHz (5-6% before shutdown) • Delivered Integrated Luminosity ~3.27pb-1 • Recorded ~2.38pb-1 (~73%) • 9902k events • Major problems which caused the downtime: • Fri: Solenoid protection electronics failure ~4 hours • Sat: MCH <-> FCH router failure ~2 hours S.Burdin

  7. Summary • First week of physics data taking • Daily data taking efficiency (Saturday) reached ~ 90 % • Access needs: ~1 hour for Muon System (not rush) S.Burdin

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