Jan 4/23 PionLT/KaonLT Analysis Meeting Notes --------------------------------------------- (Notes by GH) Today: PionLT will be discussed first Please remember to post your slides at: https://redmine.jlab.org/projects/kltexp/wiki/Kaon_LT_Meetings Present ------- Regina - Garth Huber, Ali Usman, Nathan Heinrich, Vijay Kumar, Alicia Postuma CUA - Richard Trotta, Tanja Horn Ohio - Jacob Murphy, Julie Roche JLab - Dave Gaskell FIU - Pete Markowitz CSULA - Konrad Aniol Jacob Updates ------------- - Optics - will meet with Holly on Thursday - Holly working on SHMS CaFe optics data (actually taken during PionLT) - wants to "wrap up" optics in the next month - finalize high mom HMS ME (6.8 GeV/c) - finalize 5.5, 5.8 GeV/c ME - still need to see if both are needed, or if one can do both well - SHMS high mom corrections - need to see if Holly's higher momentum ME will also work for our 8.0GeV/c optics data, or if separate ME are needed - HMS delta-corrections - Main PionLT analysis - will meet w/Richard to discuss diamond cut script Nathan Updates -------------- - PionLT/KaonLT talk at Hall C January workshop - extended discussion on Nathan's talk outline and what can be shown TH: would like to see as many "in progress" plots as possible, to indicate that there has been progress - Data/SIMC Ratios, initial ratios probably will not look very good - people shouldn't judge us on the quality of the agreement at this early stage - try to find a setting where things are looking better and show that one - instead of showing ratios, can show overlap of distributions, to show whether the shapes agree - can also give some information on why the analysis is taking so long - a slide on various issues encountered - can give links to information from Oct Analysis meeting TH: try to get some plots from Richard, and then distribute a new draft so we can come up with some proper narrative for them - Nathan, Richard, Ali will meet today at 14:00 Eastern - Nathan will distribute a new draft by Friday - We will meet Friday at 14:00 Eastern to give Nathan some useful feedback and suggestions on how to present the information effectively Ali Updates ----------- - New full replay of KaonLT data - new error calc (binomial) - corrected TLT for Beam Off time - the new calc is in addition to the old calc, not instead of it - updates to SHMS tracking - RT was seeing problems in positive polarity Lumi runs, when comparing tracked and untracked - after some comparison with Peter B, it was found some pruning and track selection parameters were different than his recommended values - changes only made to SHMS, since HMS is electrons only and doesn't seem to have the same problem - changes implemented for nearly all data types (except Heep Singles) Richard Updates --------------- - Debugging Bill's LT-sep code - have all inputs to the cross section code now - can run average_kinematics and other Fortran codes now - main issue was that there are many versions of the files, took a lot of time to sort out what's important GH: yes, we tried many different ways of doing background subtraction and other things in Bill's omega analysis, and I guess you have all parallel verisons of the code, and not only the final version (unfortunately) - meeting Stephen next week (while at JLab) on the code - SIMC changes - sent DG information outlining the changes he made to SIMC, so DG can review them before pushing to main version Vijay Updates ------------- - will start looking at the LT-sep code - also need to complete many studies needed to finalize normalize yields Alicia Updates -------------- - submitted batch jobs over the break, which ran successfully - need to implement Dummy Target subtraction, and look at BSA for other settings Next Meeting ------------ Fri Jan 4 @ 14:00 Eastern/13:00 Regina/11:00 Pacific - Nathan's slides will be the only item on the agenda If you have not yet done so, please fill in the poll to pick our meeting times for Jan 9-Mar 24 https://www.when2meet.com/?18018413-nyesS