Difference between revisions of "October 1st, 2024"
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| − | <b>Attended</b>: ''Sean'', ''Eugene'', ''Vitaly'', | + | <b>Attended</b>: ''Sean'', ''Eugene'', ''Vitaly'', ''Hovanes'', ''Sashi'', ''Richard'', ''Keigo'', ''Mikhail'', ''Alex'', ''Stuart'', ''Moskov'', and ''Igor''. |
* Announcements | * Announcements | ||
| + | - ''Igor'' reported that the PWA groups BnGa (''Andrey'') is waiting for our contribution for Xi study (''Stuart'') and JuBoWa (''Deborah'') for for our contribution for Lambda study (''Marshall''). | ||
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| + | - ''Mikhail'' reported about new activity with REKEN (''Kenta Itahashi'') group to sudy Lamba p --> Lambda p. | ||
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* [https://wiki.jlab.org/klproject/images/6/6c/KLF_iERR_committee_report_recom.pdf KLF Intermediate ERR Final Report] | * [https://wiki.jlab.org/klproject/images/6/6c/KLF_iERR_committee_report_recom.pdf KLF Intermediate ERR Final Report] | ||
* [https://docs.google.com/document/d/17GFPgQ0YyD6vYy7_Xw8KcNHSIaXiqJqL/edit?usp=sharing&ouid=102465777344247357279&rtpof=true&sd=true KLF Software Task List]. | * [https://docs.google.com/document/d/17GFPgQ0YyD6vYy7_Xw8KcNHSIaXiqJqL/edit?usp=sharing&ouid=102465777344247357279&rtpof=true&sd=true KLF Software Task List]. | ||
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| + | -- [[media:talk_klf_k0_prod_ech.pdf | Simulation of KL flux using PYTHIA by ''Eugene'']]. | ||
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| + | -- ''Eugene'' updated the slides: | ||
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| + | --1) the W/Cu ratio in the plug was changed to 90/10. With that, about 5% of the plug volume appears to be empty. It would effectively increase the absorption length of the plug material by ~3%. | ||
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| + | -- 2) ''Eugene'' noticed that the absorption length in pure W is rather 6.8 cm than 7.0 cm I used before. This would decrease the absorption length of the plug. | ||
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| + | -- This resulted in no significant change in the absorption length of the plug. It is still 7.8 cm (using the same method). An additional 5cm plug would kill about 50% of KLs. At this time I am not sure what the uncertainty of the evaluated absorption length is. It needs further studies. | ||
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| + | -- [[media:Klflux.pdf | SLAC KL yield from Be target by ''Moskov's'' slide from SLAC-PUB-1084, August 1972 and Phys Rev. D 7, 708 (1973)]]. | ||
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| + | -- [[media:KLFSOFTmeeting100124.pdf | ''Vitaly's'' slides for KL + p --> KL + p reconstruction]]. | ||
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| + | -- [[media:Scott_klf_study_kl4_10012024.pdf | ''Marshall's'' slides for KL + p --> Lambda + pi+; Marshall was absent at the meeting, but uploaded slides later]]. | ||
* AOB | * AOB | ||
Latest revision as of 10:10, 1 October 2024
Attended: Sean, Eugene, Vitaly, Hovanes, Sashi, Richard, Keigo, Mikhail, Alex, Stuart, Moskov, and Igor.
- Announcements
- Igor reported that the PWA groups BnGa (Andrey) is waiting for our contribution for Xi study (Stuart) and JuBoWa (Deborah) for for our contribution for Lambda study (Marshall).
- Mikhail reported about new activity with REKEN (Kenta Itahashi) group to sudy Lamba p --> Lambda p.
-- Simulation of KL flux using PYTHIA by Eugene.
-- Eugene updated the slides:
--1) the W/Cu ratio in the plug was changed to 90/10. With that, about 5% of the plug volume appears to be empty. It would effectively increase the absorption length of the plug material by ~3%.
-- 2) Eugene noticed that the absorption length in pure W is rather 6.8 cm than 7.0 cm I used before. This would decrease the absorption length of the plug.
-- This resulted in no significant change in the absorption length of the plug. It is still 7.8 cm (using the same method). An additional 5cm plug would kill about 50% of KLs. At this time I am not sure what the uncertainty of the evaluated absorption length is. It needs further studies.
-- Vitaly's slides for KL + p --> KL + p reconstruction.
- AOB