[Clas12_first_exp] [EXTERNAL] RGA Fa18 Files cooked with 11.1.1 (DAF)

[Christopher Dilks]

Dear Timothy and Latifa,

Although the run list you cooked here does not include the following run range, I wanted to remind everyone that Pass 1 runs 5249-5340 were cooked with the wrong attenuation factor; my notes say "10.61360 instead of 9.8088. Beam charge overestimated by about 8%."

If I recall correctly, this was corrected for in Pass 2; could you double check?

It looks like it was corrected in CCDB in May 2022, but it would still be good to double check the cooked data: https://clasweb.jlab.org/cgi-bin/ccdb/show_request?request=%2Fruncontrol%2Ffcup%3A5249%3Adefault

Perhaps this is just a red herring, but I wanted to at least mention this issue in case it has any relevance for this charge discrepancy.

Cheers,
Chris

Christopher Dilks

Jefferson Lab Staff Scientist

Office: B122

Phone: 757-269-7750

Email: dilks at jlab.org

________________________________
From: Clas12_first_exp <clas12_first_exp-bounces at jlab.org> on behalf of Stepan Stepanyan via Clas12_first_exp <clas12_first_exp at jlab.org>
Sent: Thursday, April 17, 2025 09:31
To: Timothy Hayward <haywardt at mit.edu>; Latifa Elouadrhiri <latifa at jlab.org>; Harut Avagyan <avakian at jlab.org>; Valery Kubarovsky <vpk at jlab.org>; Rafayel Paremuzyan <rafopar at jlab.org>; Raffaella De Vita <devita at jlab.org>
Cc: Latifa Elouadrhiri via Clas12_first_exp <clas12_first_exp at jlab.org>; Nathan Baltzell <baltzell at jlab.org>
Subject: Re: [Clas12_first_exp] [EXTERNAL] RGA Fa18 Files cooked with 11.1.1 (DAF)

Hello Timothy,

I forgot to ask at yesterday’s meeting about the discrepancy in beam charge reporting in DSTs between Pass-2 and the new cooked fall 2018 data. Was this resolved, perhaps I missed it. I am wondering about it as we are advancing with Spring 2018 cooking.

Thanks,
Stepan

> On Mar 18, 2025, at 11:57 AM, Timothy Hayward via Clas12_first_exp <clas12_first_exp at jlab.org> wrote:
>
> Dear RGA,
>
> We have cooked a set of Fall 2018 runs, using the same software we will use for the Spring 2018 data, to further assess the potential of the modern tracking algorithms and upgrades. You can find the data at
>
> /volatile/clas12/rg-a/production/pass0/Fall18/fa18_dst_2025_inb/
> /volatile/clas12/rg-a/production/pass0/Fall18/fa18_dst_2025_outb/
>
> inbending: 5040, 5043, 5046, 5047, 5051, 5053, 5116, 5119, 5120, 5125
> outbending: 5424, 5425, 5432, 5434, 5435, 5442, 5452, 5454, 5464, 5467
> luminosity_scans: 5418 (inb, 5nA), 5443 (outb, 5nA), 5444 (outb, 20 nA), then most of the others above are 40/45 nA etc.
>
> These are similar run numbers to the last time we did this study last Spring. It would be very helpful if analyzers could investigate the differences between these runs and the pass-2 versions that we have saved: /cache/clas12/rg-a/production/recon/fall2018/.
>
> Best regards and thank you for your help,
> Timothy
> _______________________________________________
> Clas12_first_exp mailing list
> Clas12_first_exp at jlab.org
> https://mailman.jlab.org/mailman/listinfo/clas12_first_exp

_______________________________________________
Clas12_first_exp mailing list
Clas12_first_exp at jlab.org
https://mailman.jlab.org/mailman/listinfo/clas12_first_exp
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/clas12_first_exp/attachments/20250421/cadcc8c1/attachment.htm>