From PREX Wiki
Revision as of 11:11, 17 December 2019 by Ciprian Gal
Meeting room at JLab: Counting house conference room
BlueJeans calling instructions: Toll-Free Number (U.S.& Canada): 888-240-2560 International toll number: 408-740-7256 Bluejeans CODE: 640 228 314 Bluejeans link: https://bluejeans.com/640228314
- Robert: pedestals
- RR: we need to check the quality of the pedestals using the PITA scans. CP: will work with Robert when he has time.
- Victoria: beam modulation (raw data quality, residuals)
- PK: we need the first good slopes for at least 2 slugs. VO: will have it done before lunch. PK: will work with Robert on this.
- VO: will try to get it all done within a week for the rest of the slopes.
- Yufan: haplog3972 haplog3968
- YC: using Tao's updated run list; removed runs where the analog BCM were bad or unplugged; removed runs that have less than 5k events and DD RMS > 200; 3968 shows the RMS distributions; CP: could you combine the different pdfs to have the cuts and distributions together for each DD? YC: will do
- KP: looking at the mean and error on mean and some of these are 2-3 sigma away from 0. We need to understand if there is a particular combination that shows a particular pull. CP: there are some runs that have a large Aq. CC: we should take a closer look at those runs.
- CP: please fix the fitting bug; summarize the results of the fit in a table. KP: also identify the runs with large pulls and investigate them to see if they have anything that tells us why they have a large pull
- CP: she is trying to do regression of BPMs with other BPMs. She got the machinary working and will start work soon.
- Tao: "regressed charge asymmetry"
- TY: plotting the different charge asymmetry width (regressed with BPMs). there is a clear separation for some runs. CP: I'd argue that for those runs the BPMs are sensitive to charge.
- TY: looked at Compton asymmetric backgrounds and tried to correlate with this issue. KP: 90Hz noise clipping on the master slip seems to show up both in the main analysis and the Compton!?; or the beam tune that left us sensitive to the 90Hz noise.
- CC: there doesn't seem to be a shift in these runs for the corrected mean.
Don J, Ryan R, Dmitry , Dustin M, Devi A, Caryn P, Cameron C,
Eric K, Jinlong Z, Kent P, Paul K, Rakitha B, Robert R, Victoria O, Ye T, Yufan C, David A, Sakib R, Sanghwa P, Weibin Z