20210304-PREX2-Analysis

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Logistic information

 Time: Thursday, 1PM
 Meeting room at JLab:  REMOTE ONLY

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Agenda

1. Cut dependence of Aq in CREX respin (Cameron) haplog:4489
   • Additionally, attachment 5 in haplog 4485 shows how as you remove more data from nearby a trip recovery cut's end, you get the mean Aq for all of CREX data to converge closer to 0 (i.e. this may be a possible way to improve the PREX II final Aq, by cutting longer also, and possibly useful for MOLLER considerations as well).
   • Someone should followup with this analysis technique and check on BPMs, regressed/raw main detectors, etc. to make sure no other trip-recovery dependent effects exist, or if they do that they are reasonable.
   • KK Says that the increase in Aq syst error bar is likely negligible compared to the total experiment syst error bar, and the 2 ppb improvement in statistics is probably worth it (contingent on the above bullet point).
2. AT changes after respin haplog:4482
   • Someone should take the exact-dataset comparison technique that Cameron developed for the Aq studies above and apply that to this prompt vs. respin1 AT data set comparison (i.e. to separate out questions of pedestals from questions of changed cuts, and see if changing stat error bars are sufficient to explain non-pedestal shifts).