August 8, 2022

RC Meeting Information

RC Daily Meetings are at 11:00 (am) via Zoom and in person in the counting house meeting room (2nd floor)

• Zoom remote connection information:

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Useful Links

• Shift Signup (Read only)
  • Shift Signup
• PionLT_2022_Physics_Status
• KaonLT Logbook - Used for PionLT updates too
  • Physics analysis updates should be cross posted here
• Run Plans
• Hall-C Controls
• Hall-C Logbook
• MCC White Board

Current Status

• Completed Q2=3.85, W=2.62, high epsilon (pi-) setting around midnight last night.
• Started Q2=6, W=2.4 left on OWL shift. Rate was about 1700 pions/hour, suggesting 14-15 hours needed just for this SHMS angle.
• At 7:30, switched to SHMS center setting (Q2=6, W=2.4 pi-). Rate appears to be a little higher, 1857 pions for a 1 hour run. But we are aiming for higher statistics at this setting, so full statistics will take about 16 hours (not including dummy).

Current Run Plan

• Keep taking data at this setting.
• To be discussed at RC meeting: I suggest switching the CaFe optics no later than middle of swing shift. Then if time allows, switch back to production after the Heep singles running.

Current Issues

• Coffee maker broken! Emergency instant coffee in Counting House.
• Shifts filled until August 14 - then we have OWL shifts available up to August 19. Lots of openings August 20++.

Planned Accesses to the Hall

• Maintenance day still scheduled for Thursday, so access may be possible during that time.
• Aerogel change - still need to finalize day, but it seems likely we won;t be ready for this before the weekend.

Planned Accelerator Configuration Changes

• Pass change on Tuesday.
• Pass change (4->3) next week. On nominal beam schedule was to take place Monday (Aug. 15). Told PD that this will likely need to be moved one day.