sPHENIX cold QCD topical group

[Itaru Nakagawa <itaru AT riken.jp>]

Dear all,

 As we discussed in the last cold-QCD meeting, I am updating the 
situation in 1008. The TPC is performing well so far and is planning to 
be taking physics data in the big partition after the maintenance day 
this Wednesday with still further more firmware upgrade to make zero 
suppression fully functioning. We just executed 2nd Vernier scan this 
afternoon at the current ZDC position (+2cm to the outer), since we had 
difficulty to recover GL1 errors in the 1st Vernier scan data. Data is 
to be processed right away, and Cheng-Wei will check if the data is not 
collapsed. Once he confirms the data is healthy, then it is likely we 
will move the ZDC this Wednesday maintenance day.

 Jamie explicitly stated "No plans to turn back to high lumi, zero 
crossing data taking" in the shift change meeting minutes today. So the 
optimal position of the ZDC would be +1.5mrad position. We'll move the 
ZDC to +1.5mrad position tomorrow maintenance day unless there is strong 
objection.

Best regards,

-itaru