[Clas12_calcom] timelines for RGB Spring19 available to be checked

silvia at jlab.org silvia at jlab.org
Wed Apr 5 05:39:49 EDT 2023


Dear detector experts,
new timelines were made for RGB Spring19 (data cooked with 8.7.0), and can
be found at this link:
https://clas12mon.jlab.org/rgb/pass0/v28.50/tlsummary/
Please check them and let me know if you see any problems.
I gave a quick look and compared to timeline v28.44 (February 6th, CJ
8.5.0), and I show comparisons in the slides you can find here:
https://box.in2p3.fr/index.php/s/MT3acjKRMgp2PN4
In summary:
- I notice a ~2% reduction in electrons/trigger yield;
- ECAL: there is a jump in the SF at run 6546 (gains changed in CCDB on
March 4th for 6546 - 7000); pi0 mass is out of specs for runs 6437 - 6545;
pi+time - starttime is out of specs/at the edge of specs for most of the
run range;
- slight worsening in DC residuals
- FTCal: less outliers in pi0 mass, although a few just remain. It may be
just a statistical effect, though.
- FTOF p1b pathlength-corrected edep has changed (this was expected) and
specs have changed as well.
For the rest, all seemed stable to me.
Please give me your feedback.
Cole, if you need the pass0 data to complete ECAL calibration, you'll find
them at: /volatile/clas12/rg-b/production/recon/pass0/v28.50/mon/recon/
Thanks a lot and best regards,
Silvia




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