<div dir="ltr"><div>Dear Sourav,</div><div><br></div><div>I will produce the plots and will send them by tomorrow. <br></div><div><br></div><div><br></div><div>Regards,</div><div>Shyam<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jul 17, 2024 at 4:37 PM Sourav Tarafdar <<a href="mailto:stara@jlab.org">stara@jlab.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5858588488027944135">
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Hi Shyam,</div>
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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 ?</div>
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Best regards,</div>
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Sourav </div>
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<div id="m_5858588488027944135divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Shyam Kumar <<a href="mailto:shyam055119@gmail.com" target="_blank">shyam055119@gmail.com</a>><br>
<b>Sent:</b> Wednesday, July 17, 2024 10:28 AM<br>
<b>To:</b> Sourav Tarafdar <<a href="mailto:stara@jlab.org" target="_blank">stara@jlab.org</a>><br>
<b>Cc:</b> Gnanvo, Kondo (kg6cq) <<a href="mailto:kg6cq@virginia.edu" target="_blank">kg6cq@virginia.edu</a>>; <a href="mailto:erd108@jlab.org" target="_blank">erd108@jlab.org</a> <<a href="mailto:erd108@jlab.org" target="_blank">erd108@jlab.org</a>><br>
<b>Subject:</b> [EXTERNAL] Re: Additional simulation request</font>
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<div>Dear Kondo and Sourav,</div>
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<div>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.
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<div>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.<br>
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<div>Thank you,</div>
<div>Shyam<br>
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<div dir="ltr">On Wed, Jul 17, 2024 at 4:11 PM Sourav Tarafdar <<a href="mailto:stara@jlab.org" target="_blank">stara@jlab.org</a>> wrote:<br>
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Hi Kondo,</div>
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I thought it was 3% Carbon fiber support structure causing multiple scattering which was basically making spatial resolution of MPGD irrelevant ?</div>
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Regards,</div>
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Sourav</div>
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<div id="m_5858588488027944135x_m_5773437414937921164divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Gnanvo, Kondo (kg6cq) <<a href="mailto:kg6cq@virginia.edu" target="_blank">kg6cq@virginia.edu</a>><br>
<b>Sent:</b> Wednesday, July 17, 2024 10:07 AM<br>
<b>To:</b> Sourav Tarafdar <<a href="mailto:stara@jlab.org" target="_blank">stara@jlab.org</a>>;
<a href="mailto:erd108@jlab.org" target="_blank">erd108@jlab.org</a> <<a href="mailto:erd108@jlab.org" target="_blank">erd108@jlab.org</a>>; Shyam Kumar <<a href="mailto:shyam055119@gmail.com" target="_blank">shyam055119@gmail.com</a>><br>
<b>Subject:</b> [EXTERNAL] RE: Additional simulation request</font>
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<p>Hi Sourav, </p>
<p>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</p>
<p>Best regards </p>
<p>Kondo</p>
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<p><b>From:</b> Erd108 <<a href="mailto:erd108-bounces@jlab.org" target="_blank">erd108-bounces@jlab.org</a>>
<b>On Behalf Of </b>Sourav Tarafdar<br>
<b>Sent:</b> Wednesday, July 17, 2024 9:55 AM<br>
<b>To:</b> <a href="mailto:erd108@jlab.org" target="_blank">erd108@jlab.org</a>; Shyam Kumar <<a href="mailto:shyam055119@gmail.com" target="_blank">shyam055119@gmail.com</a>><br>
<b>Subject:</b> [Erd108] Additional simulation request</p>
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<p><span style="font-size:12pt;color:black">Dear all ,</span></p>
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<p><span style="font-size:12pt;color:black">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. </span></p>
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<p><span style="font-size:12pt;color:black">Cheers,</span></p>
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<p><span style="font-size:12pt;color:black">Sourav</span></p>
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<div dir="ltr"><span style="color:rgb(0,0,255)"><b><span style="color:rgb(0,0,0)"><span style="background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif;font-size:13px">Thanks and Regards,</span></span></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span>
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<span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Shyam Kumar,</span></b></span></div>
<div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Postdoctoral Fellow,<br>
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<div><span><b><span style="color:rgb(0,0,255)">Istituto Nazionale di Fisica Nucleare (INFN), Bari, Italy</span></b><br>
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<div><span style="color:rgb(0,0,255)"><b>alt. email: <u><a href="mailto:shyam.kumar@cern.ch" target="_blank">shyam.kumar@cern.ch</a></u></b></span><br>
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<div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span></b></span></div>
<div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><a href="mailto:shyam@rcf.rhic.bnl.gov" target="_blank">shyam</a>.<a href="mailto:kumar@ba.infn.it" target="_blank">kumar@ba.infn.it</a></span></b></span><span><span><span></span></span></span><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span></b></span></div>
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</div></blockquote></div><br clear="all"><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><span style="color:rgb(0,0,255)"><b><span style="color:rgb(0,0,0)"><span style="background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif;font-size:13px">Thanks and Regards,</span></span></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span> </b></span><br><div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">------------------------------</span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">-------------------------</span><br style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Shyam Kumar,</span></b></span></div><div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Postdoctoral Fellow,<br></span></b></span></div><div><span><b><span style="color:rgb(0,0,255)">Istituto Nazionale di Fisica Nucleare (INFN), Bari, Italy</span></b><br></span></div><div><span style="color:rgb(0,0,255)"><b>alt. email: <u><a href="mailto:shyam.kumar@cern.ch" target="_blank">shyam.kumar@cern.ch</a></u></b></span><br></div><div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span></b></span></div><div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"><a href="mailto:shyam@rcf.rhic.bnl.gov" target="_blank">shyam</a>.<a href="mailto:kumar@ba.infn.it" target="_blank">kumar@ba.infn.it</a></span></b></span><span><span><span></span></span></span><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)"></span></b></span></div><div><span style="color:rgb(0,0,255)"><b><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">------------------------------</span><span style="font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">-------------------------</span></b></span></div></div></div></div></div></div></div></div></div></div></div></div></div>