[Erd108] [EXTERNAL] Re: Additional simulation request

[Sourav Tarafdar]

Hi Shyam,

Thank you for volunteering. Just so that we are on same page, by tracklet method I suppose you mean fast tracklet method aka taking hits only from MPGD + ToF ?

Best regards,
Sourav
________________________________
From: Shyam Kumar <shyam055119 at gmail.com>
Sent: Wednesday, July 17, 2024 10:28 AM
To: Sourav Tarafdar <stara at jlab.org>
Cc: Gnanvo, Kondo (kg6cq) <kg6cq at virginia.edu>; erd108 at jlab.org <erd108 at jlab.org>
Subject: [EXTERNAL] Re: Additional simulation request

Dear Kondo and Sourav,

Yes, I expect there will be further degradation in theta/phi resolutions if you increase the material budget of the TOF layer (5% from 1%). I can check the impact.
I feel that the tracklet idea is very interesting but I need to check in my fast simulation, why it's performing well. I have some initial ideas based on my experience but need to validate them producing a plot. For the tracklet, I need to modify the Kalman algorithm then I can disentangle again spatial resolution and multiple scattering contributions.

Thank you,
Shyam


On Wed, Jul 17, 2024 at 4:11 PM Sourav Tarafdar <stara at jlab.org<mailto:stara at jlab.org>> wrote:
Hi Kondo,

I thought it was 3% Carbon fiber support structure causing multiple scattering which was basically making spatial resolution of MPGD irrelevant ?

Regards,
Sourav
________________________________
From: Gnanvo, Kondo (kg6cq) <kg6cq at virginia.edu<mailto:kg6cq at virginia.edu>>
Sent: Wednesday, July 17, 2024 10:07 AM
To: Sourav Tarafdar <stara at jlab.org<mailto:stara at jlab.org>>; erd108 at jlab.org<mailto:erd108 at jlab.org> <erd108 at jlab.org<mailto:erd108 at jlab.org>>; Shyam Kumar <shyam055119 at gmail.com<mailto:shyam055119 at gmail.com>>
Subject: [EXTERNAL] RE: Additional simulation request


Hi Sourav,

It looks like the material budget already the dominant parameter for the angular resolution study at the DIRC level so it seems very unlikely that there would be any difference between 1% and 5% for the TOF layer

Best regards

Kondo



From: Erd108 <erd108-bounces at jlab.org<mailto:erd108-bounces at jlab.org>> On Behalf Of Sourav Tarafdar
Sent: Wednesday, July 17, 2024 9:55 AM
To: erd108 at jlab.org<mailto:erd108 at jlab.org>; Shyam Kumar <shyam055119 at gmail.com<mailto:shyam055119 at gmail.com>>
Subject: [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


--
Thanks and Regards,
-------------------------------------------------------
Shyam Kumar,
Postdoctoral Fellow,
Istituto Nazionale di Fisica Nucleare (INFN), Bari, Italy
alt. email: shyam.kumar at cern.ch<mailto:shyam.kumar at cern.ch>
shyam<mailto:shyam at rcf.rhic.bnl.gov>.kumar at ba.infn.it<mailto:kumar at ba.infn.it>
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