Store Summary I Store Avg Init Lumi E

Store Summary I Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? Comments 7416 248. 4 6177 15. 2 Normal Protons blow up transversely. Lowered pbar H & V tunes. 001. Also see pbar long instability 7417 253. 5 5090 15. 0 Normal Protons blew up transversely; lowered base V tune by. 001. Also see pbar long instability 7418 269. 4 6571 14. 6 Normal Protons blew up transversely; lowered base V tune by. 001. Also see pbar long. instability 7419 276. 4 6602 14. 1 Normal No transverse blowups but did get pbar long instability 7420 277. 6 6757 15. 0 Normal Had a pbar long instability; Lowered Proton V tune at Collisions. 001 7421 276. 9 7963 21. 6 Normal Lowered Proton H tune only at Low Beta by. 001. Also adjusted D 0 VANG at Seq 14, 15 & 16 7422 220. 2 5108 15. 2 Normal Sent out a smooth Tevatron Coordinator - FNAL 12/8/2020

Store Summary II Store Avg Init. Lumi (E 30) Avg Deliv’d Lumi (nb-1) Time (hr) How did it end? Comments 7423 290. 4 0 0. 1 Aborted from LCW water temperature at A 2 265. 3 2914 4. 6 Abort No longitudinal blowups. Lowered pbar tunes by. 002 at collisions. Lost power at F 1 fridge building. 239. 2 - - Ongoing Lowered p horz at LBSEQ=25. Reduced current in SQD 1 and SQC 4 at collisions to favour proton coupling. No long. Blowup. 7427 7433 Tevatron Coordinator - FNAL 12/8/2020

Pbar Tunes using BBQ at Collisions with tickling As found tunes were at 0. 6 for 7423. Lowered them for 7427 by. 002. Tevatron Coordinator - FNAL 12/8/2020 3

The Numbers

Lum vs Particles

Longitudinal Pbar Blowups Continue (maybe)

Integrated Luminosity for the Week

Problems • D 1 Q 3 quad continues to roll • Continued pbar longitudinal instabilities after flattop to HEP: – Tuned RF stations with some success. – May be disappearing …transverse coupling to longitudinal? Possible proton transverse emittance blowup at collisions – Made SQD 1, SQC 4 coupling change to favour protons at collisions. – Lowered proton horz tune (. 001) at LBSEQ=25. • Before st 7433: – D 0 ps leaking water due to pond pumps being off. – B 0 Q 6 regulation problem. Tevatron Coordinator - FNAL 12/8/2020 8

Problems • LOSTP at collisions high. – Tuning changes for protons sent out (st 7423, 7427) • E 48 SF 6 required refill. (after st 7427)

Studies/Work Completed • • BBQ to measure pbars tunes at lbseq/collisions. Tune mult calibrations completed Many small tune and coupling changes made store to store. Work continues on Tev RF to try to stop pbars from blowing up at collisions. • Crystal collimator electronics installed. Tevatron Coordinator - FNAL 12/8/2020 10

Studies • • • T-980 (EOS 2 -3 hours, Still) TEL alignment studies (Alex, 2 hours) Beam based alignment study at feeddown locations. Tune space study at collisions? Bumper magnet studies. Tevatron Coordinator - FNAL 12/8/2020 11