Difference between revisions of "20200518-Optics-Mtg"
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Room IRL: <none> | Room IRL: <none> | ||
| − | == | + | == Minutes == |
'''Please post slides in haplog or docdb, before the meeting''' | '''Please post slides in haplog or docdb, before the meeting''' | ||
| − | # Siyu | + | # Siyu [http://ace.phys.virginia.edu/HAPPEX/4100 haplog:4100] |
#* comparing central value +/- error for various sieve holes and measurements. | #* comparing central value +/- error for various sieve holes and measurements. | ||
| − | #Ryan: | + | ## Right arm dp from watercell in reasonable agreement with survey, except one point (dp=0%) which is significantly different (~1% different angle) |
| − | #* | + | ## looking for source of this discrepancy |
| − | # | + | |
| − | # | + | #Ryan: - [http://ace.phys.virginia.edu/HAPPEX/4101 Re-evaluating PREX database ] |
| + | #* Looking at residuals on theta,phi, and p to verify PREX data base | ||
| + | ## much cleaner now with Siyu’s optimized data base | ||
| + | ## still some problems in residual plots, perhaps best to debug). | ||
| + | ### systematically shifted residuals (all positive on phi, for example) | ||
| + | ### some residuals show very small error bar (low stat in some holes, or cut issue?) | ||
| + | ### some residuals have large outliers (low stat in some holes, or cut issue?) | ||
| + | ## ultimately to be qualified using ad-hoc correction to benchmark effect on Q2. | ||
== Attendence == | == Attendence == | ||
| + | |||
| + | Devi, Ryan, Siyu, Chandan, Nilanga, Cip, Bob, Dustin, Kent | ||
Latest revision as of 15:19, 18 May 2020
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Logistic information
Toll-Free Number (U.S.& Canada): 888-240-2560 PARTICIPANT CODE: # 585 129 220 Room IRL: <none>
Minutes
Please post slides in haplog or docdb, before the meeting
- Siyu haplog:4100
- comparing central value +/- error for various sieve holes and measurements.
- Right arm dp from watercell in reasonable agreement with survey, except one point (dp=0%) which is significantly different (~1% different angle)
- looking for source of this discrepancy
- Ryan: - Re-evaluating PREX database
- Looking at residuals on theta,phi, and p to verify PREX data base
- much cleaner now with Siyu’s optimized data base
- still some problems in residual plots, perhaps best to debug).
- systematically shifted residuals (all positive on phi, for example)
- some residuals show very small error bar (low stat in some holes, or cut issue?)
- some residuals have large outliers (low stat in some holes, or cut issue?)
- ultimately to be qualified using ad-hoc correction to benchmark effect on Q2.
Attendence
Devi, Ryan, Siyu, Chandan, Nilanga, Cip, Bob, Dustin, Kent
