[Erd108] [External] Additional simulation request

[Matthew Posik]

Hi Sourav,

Increasing the material budget of ToF barrel from 1% to 5% will worsen the angular resolutions further, particularly at lower momentum (below ~2 GeV). You can get a sense of this from slide 16:https://urldefense.proofpoint.com/v2/url?u=https-3A__indico.bnl.gov_event_24221_contributions_94046_attachments_55823_95470_07-5F15-5F2024-5FDIRCAngleRes.pdf&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=6nBhCQ9asnI7Gb72jBWQ4g&m=Mj1r_YPL42RgudYGHNdF6CbH5puVDEsvzBqqW9d7k0M_OqYf2oElqn356a1pGRe4&s=pCCfR_TnPS7XIj4UFEWxJ9Slr6wLxSDWUGTrkfLDihE&e= 
looking at the change in cyan to green markers, you can see the effect of the central detector support cylinder, which has a material budget of 3.5%. You can also get a sense of the material impact from slides 25-26, where the uRWELL-BOT material was reduced from 2% (black markers)  to 1% (blue markers).

Unfortunately, right now I do not have the time to for a quick turn-around study on this.

Thanks,
Matt

Matt Posik
Research Associate Professor

Temple University
Department of Physics
SERC
1925 N. 12th St.
Philadelphia, PA 19122
USA

TU Office: SERC Room 451


Physics Office: SERC Room 406/4th Floor
________________________________
From: Erd108 <erd108-bounces at jlab.org> on behalf of Sourav Tarafdar <stara at jlab.org>
Sent: Wednesday, July 17, 2024 9:55 AM
To: erd108 at jlab.org <erd108 at jlab.org>; Shyam Kumar <shyam055119 at gmail.com>
Subject: [External] [Erd108] Additional simulation request

Dear all ,

The request is mostly directed towards Matt and Shyam. I am wondering if it is possible to quickly do additional study on angular resolution @ DIRC location by increasing the material budget of barrel ToF from current 1.0% to 5.0% ? There has been chatter about increasing the material budget of ToF to 5.0% and before it takes a lead it will be good to know it's effect . Based on results shown in the Monday meeting I suppose it will further deteriorate angular resolution at DIRC. Also considering Shyam's method I think the analytical simulation method by Shyam will be good enough if DD4HEP sim is time taking.

Cheers,
Sourav
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/erd108/attachments/20240717/6a7c1f56/attachment.html>