WAC Notes March 23 2021

RCDB	HALOG	HAPLOG	DocDB	Online Prompt	BlueJeans Link	Runlist spreadsheet, respin 1 spreadsheet

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WAC Notes March 16 2021 << >> WAC Notes March 30 2021

Organization

Date and time: March 23, 2021, 11am
Bluejeans ID: 564945377
Meeting link: https://bluejeans.com/564945377
Runlist spreadsheet

March 23rd 2021

• RCDB Values have been updated for the runs in question
  • Used /adaqfs/home/apar/pvdb/prex/scripts/update_conditions.py with the data fed into respin2_changes_description.csv and respin2_changes.csv
  • Matches the spreadsheet used over the last few months to track intended changes
  • The AT run period had a spurious newline character at the end of run_type and run_flag for all the runs, which is OK since it was consistent, but it broke the aggregator RCDB parser script... so I've replaced those entries with the non-newline character versions.
• Final cut maps have been committed (finished yet?)
• Beam off pedestals have been calculated for all PMT devices - http://ace.phys.virginia.edu/HAPPEX/4502
  • Main and AT detectors determined
  • AT run period 6335-6408 can either use the finely segmented analysis determined during online analysis, or just a flat beam off pedestal that has no interesting features - I suggest the latter
  • The blinded tube data around 8444-8451 needs to be considered as well, likely it can just use the beam off values as well
  • There were some problems with the pedestals implemented for respin1
    • Most notably the blinded tube peds were accidentally applied for all devices and all runs > 8452 (when that should have only been the case for ATL2 and ATR2)
    • The runs < 7500 accidentally used stale pedestal numbers from the April pass of the pedestal analysis
    • So these are big changes, but hopefully small impacts
  • PENDING: SAM pedestals can also be calculated using this method - there is some disagreement between techniques, so comments are appreciated
• BMOD slopes have been calculated using the simple analysis (5 BPMs, 13746 coil set), for both the standard BPM set and the eigenvector analysis (see recent haplogs). Either or both sets can be used for bmod calculations in JAPAN.
  • PENDING
• There are too many correlations and corrections analyses in the JAPAN trees. We should remove > half of them that nobody looks at (like the orig 4aX regression analyses).
  • PENDING List at the bottom

March 16th 2021

• Beam off pedestals (for PMT devices) - needs another pass - HAPLOG
  • Seems like a good idea to use bcm_dg_us.hw_sum_raw/num_samples < -150 or so (spot check 20 runs across CREX)
  • Also look at 1D histogram of BCMs
• Commit remaining map/cut updates from giant spreadsheet work
• Update pedestal maps with beam off pedestals, and double check values are all appropriate (Amali, Robert, Cameron)
  • Duplicate usl peds: prex_maindet_pedestal.8453-8506.map, prex_maindet_pedestal.8526-8549.map
• Update RCDB info
• Consider adding bmod slope map files for respin2
• Aim for Friday afternoon initial respin2 test slugs (need to make sure folders and disk usage are all in line too)
• Getting slug lists and such polished can happen after the respin is underway

March 9th 2021

Preparing for respin2 - mid March - 1 week from now

• Runlist finalization
  • Finish up runlist checking here
  • Aq issues and BPM 12X cut ranges
  • Github up to date
  • Apply RCDB updates
  • We need a standard set of cuts and procedure for getting slug lists, which can be deliberated after respin2 begins
• Pedestal updates
  • Use beam off for non-RF systems (does AT data need to have changed pedestals? At least double check them all)
  • Verify segmentation and values for RF systems
  • Refer to beam off pedestals for guidance on applicability ranges
  • Double check PITA scans from respin1 data and BPM calibrations separately
• Aq shift - solved
• Questions on AT data-set (similar to Aq issue)
• Run 8321 config file for file splits?
• Add combos to mulc and regression for main detector + AT combos (usl_atl1_dd, etc.)
• Include SAMs and ATs in BMOD calculations going forward

March 2nd 2021

Preparing for respin2

• Pedestals/new beam trip cut/Aq interrelation question
  • Aq post-trip studies: http://ace.phys.virginia.edu/HAPPEX/4483
    • Things look good when comparing the different time slices post-trip recovery - more plots are needed to determine how well the non-feedback data post-trip explains the shift in Aq from prompt to respin1 data set.
  • Pedestal comparisons for AT: http://ace.phys.virginia.edu/HAPPEX/4482
    • Changing from prompt (wrong) to respin1 (relative to bcm calibrated) pedestals changed the mean asyms by an expected ~3% per target, EXCEPT for Pb208, which changed by ~15%. This needs further investigation to understand why Pb pedestal change affected the asyms so much.

February 23rd 2021

Prior day's notes can be found here

Attendence

Cameron, Victoria, Paul King, Allison Zec, Juliette, Weibin, Ryan, Devi, Kent