Minutes and Summary

Main purpose of the meeting: Meeting dedicated to the ion run program for 2023

Federico (Introduction)

Slide 5: 

• Jorg commented that 50ns slip stacked beams are not ready yet in the SPS, mostly failing at the RF capturing step. 

 

Slide 9: 

• Sarah asked if there is plan C with 75ns. Roderik said yes, but that it would take away time from 50ns split stack commissioning. 

 

Slide 10:

• Witold commented on the topic of burnoff mitigation. Idea would be to separate the experiments who don’t scan. 

  • Experiments are expected to comment on this. 

• Witold also asked regarding the plan across experiments within the same fill. Lumi experts agree on the order. 

 

Slide 11:

• Roderik confirmed that crystal collimation is reproducible. 

• Jorg also commented that the stop on Friday afternoon will be a bit longer, probably until 4pm.

• Sarah asked if we were still talking a few hours from now. Jorg commented we should be back by 6pm tonight.

• We agreed the plan will go ahead as scheduled, independently of the time. 

• LSC during a physics fill for ATLAS/CMS, as a baseline separated from the VdM fill.

 

Gianni (CMS)

• Required an emittance scan as early as possible, possibly in one of the ADJUST phases before going into collisions.

 

Silvia (ATLAS)

• Federico commented that the LPC webpages will be fixed soon

 

Giovanni (LHCb)

• Witold underlined the importance of having ghost charge measurement from LHCb

 

Sarah (ALICE)

• Request for collisions as early as possible to be coordinated. Would be useful for all experiments to profit.