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Progress Update on MC Work and Reconstruction Efforts - Meeting Summary (January 16, 2004)

This document outlines the meeting’s key points focusing on the status of Monte Carlo (MC) work and reconstruction efforts. Coverage includes organizational issues, simulation results, and the progress of error correction in data reconstruction. Specific highlights include discussions on the efficiency of hot vs. dead events, the simulation of decay modes, and strategies for data recovery. The urgency of future tasks is emphasized, particularly pertaining to new MC productions and handling streaming data. An appeal for cooperation in scheduling offline shifts is also made.

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Progress Update on MC Work and Reconstruction Efforts - Meeting Summary (January 16, 2004)

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  1. Yet another offline meeting M. Moulson, 16 January 2004 • Outline: • Status of MC work • Status of reconstruction work • What to run next? • Organizational issues

  2. MC progress: General • Simulation: • EmC response to m and p — CB, TS, MT • Simulation of d rays in DC — AA, SdA • Reconstruction: • Order of hot/dead reversed in DCDELETE — MM, done • HW efficiencies in DCDELETE — SdA, MM, done • Error in s-t relations used for DC reconstruction — SdA, PdS • VTXFIN: rollback of dE/dx correction in DBV-16 — ?

  3. MC progress: rad stream • Simulation: • a0 BR 10 too high — CB • KSKL resonance shape for f0/a0 — CB, ? • wp0 cross section “resonant” — CB • bug in h  p+p-g generator — CdD, FA, CB • Problems concerning DST’s • FILFO/par=1 used when streaming rad DSTs — MM

  4. MC progress: kpm and ksl streams • Simulation: • p and n reversed in KS  pen generator — CB, CG, done • Same decay mode for KS and regenerated KL — CB • Small bug in K0peng generator — CB, CG • New generators for radiative K decays — CB, CG • K0pmng • K+p+p0g (IB, DE) • K+mng, eng (IB) • K+p0mng, p0eng

  5. Datarec progress: Reconstruction DC wire sags in tracking code — AA, SdA, MM dE/dx: applied before streaming/to other streams — ? dE/dx: New bank format for DSTs — ?

  6. Datarec progress: FILFO • Point-person? • Implement downscale for rejected events — ? • Drop BHABREJ cut — ? • Downscale golden Bhabhas — ? • New tag for radiative Bhabhas — CG, TS

  7. Datarec progress: Streaming • kpm: eliminate old tagging algorithms — ? • kpm: dE/dx based tag — ? • ksl: eliminate KSTAG algorithm — ? • rad: downscaled sample with less stringent cuts — ? • clb: various bug fixes — TS • lsb: selection/insertion code — MM

  8. Plans, priorities, prerequisites • Re-reconstruct 5-10 pb-1 (LSF = 1:5) of all_phys for tests 1 day • Requires: MC general, Desired: MC kpm • New MC production: radiative f decays, 110M evts 7 days • Requires: MC general, MC rad • New MC production: e+e-g, Eg > 100 MeV, 32M evts 7 days • Requires: MC general • New MC production: all_phys off peak, ~60M evts 7 days • Requires: MC general, MC rad, MC ksl/kpm • Re-run all_phys production 20 days • Requires: MC general, MC rad, MC ksl/kpm • Re-run neu_kaon production 30 days • Requires: MC general, MC ksl/kpm • Reprocess data for FILFO bias sample ? days • Requires: Data streaming

  9. How are we doing on time? • When does data taking restart? • Informal from Sergio: expect data by Easter • … 86 days until Easter • 72 + ? days of planned production • Other requests? • Must get cracking within 14 days! • MC general category highest priority

  10. Organizational issues • Offline shifts: • Not yet scheduled • Wait until clear when MC production starts • 1 week advance, loose scheduling • Local people will take first shifts • Help Wanted: Seeking Co-Convenor!

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