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<p>Dear Kyungseon,</p>
<p>the situation of COVID-19 in Italy has much improved with
respect to last March, people is restarting some sort of phase
III (almost normal )
life. Most people seem to respect social distancing but an
increasing number of persons start to relax: the worry is for a
second wave next fall. <br>
</p>
<p><br>
</p>
<p>Thank you for your update on the discussion within CCC about
RG-K pass1 data processing.</p>
<p>Let me summarize my understanding of the present RG-K status
and our plan for data analysis.<br>
</p>
<p>- RG-K pass1 review was successfully completed after one
iteration with the pass1 readiness review committee for all the
requested charges
</p>
<p>- the pass1 readiness review committee asked the RG-K to
clearly identify which reactions could provide publishable data
with the present cooking</p>
<p>- RG-K has identified two possible reactions and observables: <br>
</p>
<ul>
<li>Beam-Recoil Lambda polarization from K+ Lambda
electroproduction on the proton</li>
</ul>
<p>where the scattered electron, the kaon and the proton from the
Lambda decay are detected in the forward detector</p>
<p><br>
</p>
<ul>
<li>Beam Spin Asymmetry from DVCS on a proton target</li>
</ul>
<p>where the scattered electron is detected in the forward
detector, the photon is detected in the forward detector or in
the forward tagger, the proton is detected in the forward
detector for 10% of the events and is tagged in the central
detector for 90% of the statistics.</p>
<p><br>
</p>
<p>The answer to your question is that the central tracking is
used only to tag the protons, without using any momentum
information, in one of the two publishable reaction channels.</p>
<p><br>
</p>
<p class="x_MsoNormal" style="text-align:justify;
text-justify:inter-ideograph; text-indent:21.3pt;
text-autospace:none">
<b style=""><span style="" lang="EN-US"></span></b></p>
<div class="x_moz-forward-container">However the quality of the
data analysis cannot be judged at this stage, before RG-K is
allowed to access the data themselves. Formal procedures to
review the data analysis exist within the CLAS collaboration,
which require that an analysis note is produced by the PI and is
reviewed by an appointed committee.</div>
<div class="x_moz-forward-container">Systematic checks on proton
detection efficiency stability could be produced using proton
pi0 electro-production and additional procedures to perform
kinematical checks would be included in the Analysis Note and
any decision on the final quality of the produced results should
be taken "a posteriori".<br>
</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container">Finally we have been informed
that cable swapping in some MicroMegas channels has been found
in RG-B data. No evidence yet exist of a similar problem in fall
RG-A and RG-K data, which ran before the engineering
intervention to install 2 MM layers in January 2019. Any
disagreement with the expected performance may be resolved
involving montecarlo simulations to evaluate the efficiency loss
in discarding the problematic regions.</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container">RG-K is ready and eager to
start with data processing.
</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container">Should the CCC be willing to
organize a BJ meeting in a week timescale, we would be more than
happy to answer all additional questions you may want to ask.</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container">Best regards</div>
<div class="x_moz-forward-container"><br>
</div>
<div class="x_moz-forward-container">Annalisa for the RG-K<br>
</div>
<div class="x_moz-forward-container"><br>
</div>
</div>
<div class="moz-cite-prefix">Il 06/07/20 15:47, Joo, Kyungseon ha
scritto:<br>
</div>
<blockquote type="cite"
cite="mid:MN2PR05MB6864262873D1DE9557230D97E4690@MN2PR05MB6864.namprd05.prod.outlook.com">
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Dear Annalisa,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
I hope that this email finds you well and healthy. The
situation in US is getting even more dire and the worst part is
that it seems that people don't care much including the
president. </div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Regarding data processing request for RG-K, CCC met last week to
discuss it and is concerned about your RG-K's plan for central
tracking use. If central tracking will be used in your physics
analysis even at the minimum level which is not clearly defined,
we need to make sure that we understand your plan and the review
for that part is in place. Please provide us some more details
about it. If desirable, we could have a short BJ meeting.
Thanks.</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Best regards, Kyungseon</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
</div>
<div>
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font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<div id="Signature">
<div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Kyungseon JOO</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Professor of Physics</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
University of Connecticut</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Storrs, CT 06269</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<a class="moz-txt-link-freetext" href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.phys.uconn.edu_-7Ekjoo&d=DwMD-g&c=CJqEzB1piLOyyvZjb8YUQw&r=t2OnxVoP8YJyzuxpHKwj1tmrMj6s1mZ4pgV16sZJZb8&m=LRCrxNnuogXPaynWAdAXg9g_RdUjznhv5gKQPTWNJ70&s=4i00H7smfp__2oD_NSCUxIuyKuZCrkJKCoRGiRPUobE&e=">http://www.phys.uconn.edu/~kjoo</a></div>
</div>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Annalisa D'Angelo <a class="moz-txt-link-rfc2396E" href="mailto:annalisa.dangelo@roma2.infn.it"><annalisa.dangelo@roma2.infn.it></a><br>
<b>Sent:</b> Saturday, July 4, 2020 2:57 AM<br>
<b>To:</b> Joo, Kyungseon <a class="moz-txt-link-rfc2396E" href="mailto:kyungseon.joo@uconn.edu"><kyungseon.joo@uconn.edu></a>;
<a class="moz-txt-link-abbreviated" href="mailto:kjoo@jlab.org">kjoo@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:kjoo@jlab.org"><kjoo@jlab.org></a><br>
<b>Subject:</b> Re: [EXTERNAL] Pass1 Data Processing Request
for RG-K</font>
<div> </div>
</div>
<div>
<div style="background-color:#ffeb9c; width:100%;
border-style:none; border-color:#faebcc; border-width:1pt;
padding:10pt; font-size:11pt; line-height:12pt;
font-family:'Calibri'; color:#000000; text-align:left">
<span style="color:#9C6500"></span>*Message sent from a system
outside of UConn.*</div>
<br>
<div>
<div class="x_moz-cite-prefix">Dear Kyungseon,</div>
<div class="x_moz-cite-prefix">I was wondering if you had
discussed RG-K pass1 scheduling within the CCC.</div>
<div class="x_moz-cite-prefix">Have a great 4th of July.</div>
<div class="x_moz-cite-prefix">Annalisa<br>
</div>
<div class="x_moz-cite-prefix"><br>
</div>
<div class="x_moz-cite-prefix"><br>
</div>
<div class="x_moz-cite-prefix">Il 25/06/20 17:31, Joo,
Kyungseon ha scritto:<br>
</div>
<blockquote type="cite">
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Dear Annalisa and Run Group K,</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Thanks for the request. CCC will discuss this soon and
will get back to you. Thanks.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Best regards, Kyungseon</div>
<div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div id="x_Signature">
<div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Kyungseon JOO</div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Professor of Physics</div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
University of Connecticut</div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
Storrs, CT 06269</div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;
font-size:12pt; color:rgb(0,0,0)">
<a class="x_moz-txt-link-freetext" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__nam10.safelinks.protection.outlook.com_-3Furl-3Dhttp-3A-252F-252Fwww.phys.uconn.edu-252F-7Ekjoo-26data-3D02-257C01-257Ckyungseon.joo-2540uconn.edu-257C34f5c8e0f8e84f778fc208d81fe77cd9-257C17f1a87e2a254eaab9df9d439034b080-257C0-257C0-257C637294426543856759-26sdata-3DYOgUZxrMo7XXh0jAMEHVoRKn2uL-252FG2-252BUs9juEVlOkeA-253D-26reserved-3D0&d=DwMD-g&c=CJqEzB1piLOyyvZjb8YUQw&r=t2OnxVoP8YJyzuxpHKwj1tmrMj6s1mZ4pgV16sZJZb8&m=LRCrxNnuogXPaynWAdAXg9g_RdUjznhv5gKQPTWNJ70&s=_NB_sdNmoGTEEM6HtN69MDPyDQyBT8nOoITb7e3MQ9k&e=" originalsrc="http://www.phys.uconn.edu/~kjoo" shash="kNKlVS10mESwunFfWeUvCb8hUr60c8zKzsREnIa8DTF9k+i3s6ornsfGFedYTMg9+GO4sDXqmhR3xJw1dSq/cKXn4N8Ov2hpmxNKJGYFpveYTn0OfODuyzVqYcA/v7MHWY7/mNl8jcdNQmJT1wbYzhYaEs2MNk05DpbwWIvKnCA=" moz-do-not-send="true">http://www.phys.uconn.edu/~kjoo</a></div>
</div>
</div>
</div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_divRplyFwdMsg" dir="ltr"><font
style="font-size:11pt" face="Calibri, sans-serif"
color="#000000"><b>From:</b> Annalisa D'Angelo
<a class="x_moz-txt-link-rfc2396E"
href="mailto:annalisa.dangelo@roma2.infn.it"
moz-do-not-send="true"><annalisa.dangelo@roma2.infn.it></a><br>
<b>Sent:</b> Wednesday, June 24, 2020 4:00 PM<br>
<b>To:</b> <a class="x_moz-txt-link-abbreviated"
href="mailto:kjoo@jlab.org" moz-do-not-send="true">kjoo@jlab.org</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:kjoo@jlab.org" moz-do-not-send="true"><kjoo@jlab.org></a>;
Raffaella De Vita
<a class="x_moz-txt-link-rfc2396E"
href="mailto:Raffaella.Devita@ge.infn.it"
moz-do-not-send="true"><Raffaella.Devita@ge.infn.it></a>;
<a class="x_moz-txt-link-abbreviated"
href="mailto:mcontalb@fe.infn.it"
moz-do-not-send="true">mcontalb@fe.infn.it</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:mcontalb@fe.infn.it"
moz-do-not-send="true"><mcontalb@fe.infn.it></a>;
Battaglieri Marco
<a class="x_moz-txt-link-rfc2396E"
href="mailto:Marco.Battaglieri@ge.infn.it"
moz-do-not-send="true"><Marco.Battaglieri@ge.infn.it></a>;
<a class="x_moz-txt-link-abbreviated"
href="mailto:bryan.mckinnon@glasgow.ac.uk"
moz-do-not-send="true">
bryan.mckinnon@glasgow.ac.uk</a> <a
class="x_moz-txt-link-rfc2396E"
href="mailto:bryan.mckinnon@glasgow.ac.uk"
moz-do-not-send="true">
<bryan.mckinnon@glasgow.ac.uk></a>; <a
class="x_moz-txt-link-abbreviated"
href="mailto:elfassi@jlab.org" moz-do-not-send="true">
elfassi@jlab.org</a> <a
class="x_moz-txt-link-rfc2396E"
href="mailto:elfassi@jlab.org" moz-do-not-send="true">
<elfassi@jlab.org></a><br>
<b>Cc:</b> <a class="x_moz-txt-link-abbreviated"
href="mailto:latifa@jlab.org" moz-do-not-send="true">latifa@jlab.org</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:latifa@jlab.org" moz-do-not-send="true"><latifa@jlab.org></a>;
<a class="x_moz-txt-link-abbreviated"
href="mailto:burkert@jlab.org" moz-do-not-send="true">burkert@jlab.org</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:burkert@jlab.org" moz-do-not-send="true"><burkert@jlab.org></a>;
Francois-Xavier Girod-Gard
<a class="x_moz-txt-link-rfc2396E"
href="mailto:fxgirod@jlab.org" moz-do-not-send="true"><fxgirod@jlab.org></a>;
Viktor Mokeev
<a class="x_moz-txt-link-rfc2396E"
href="mailto:mokeev@jlab.org" moz-do-not-send="true"><mokeev@jlab.org></a>;
<a class="x_moz-txt-link-abbreviated"
href="mailto:maxime.defurne@cea.fr"
moz-do-not-send="true">maxime.defurne@cea.fr</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:maxime.defurne@cea.fr"
moz-do-not-send="true"><maxime.defurne@cea.fr></a>;
Ralf Gothe
<a class="x_moz-txt-link-rfc2396E"
href="mailto:rwgothe@gmail.com" moz-do-not-send="true"><rwgothe@gmail.com></a>;
Dan Carman
<a class="x_moz-txt-link-rfc2396E"
href="mailto:carman@jlab.org" moz-do-not-send="true"><carman@jlab.org></a>;
<a class="x_moz-txt-link-abbreviated"
href="mailto:clas12_rgk@jlab.org"
moz-do-not-send="true">clas12_rgk@jlab.org</a>
<a class="x_moz-txt-link-rfc2396E"
href="mailto:clas12_rgk@jlab.org"
moz-do-not-send="true"><clas12_rgk@jlab.org></a><br>
<b>Subject:</b> [EXTERNAL] Pass1 Data Processing Request
for RG-K</font>
<div> </div>
</div>
<div class="x_BodyFragment"><span style="font-size:11pt">
<div class="x_PlainText">*Message sent from a system
outside of UConn.*<br>
<br>
<br>
Dear CLAS Collaborator Chair,<br>
<br>
Dear Members of the CLAS Coordinating Committee,<br>
<br>
please find in attachment the formal request letter
for pass1 data<br>
processing of the RG-K data set in parallel with RG-B.<br>
<br>
We are available for any additional information you
may need.<br>
<br>
Best regards<br>
<br>
Annalisa D'Angelo<br>
<br>
for the Run Group K<br>
<br>
<br>
--<br>
<br>
================================================<br>
Prof. Annalisa D'Angelo<br>
Dip. Fisica, Universita' di Roma "Tor Vergata"<br>
Istituto Nazionale di Fisica Nucleare<br>
Sezione di Roma Tor Vergata, Rome Italy<br>
<a class="x_moz-txt-link-abbreviated"
href="mailto:email:annalisa.dangelo@roma2.infn.it"
moz-do-not-send="true">email:annalisa.dangelo@roma2.infn.it</a><br>
Jefferson Laboratory, Newport News, VA USA<br>
Email: <a class="x_moz-txt-link-abbreviated"
href="mailto:annalisa@jlab.org"
moz-do-not-send="true">annalisa@jlab.org</a><br>
Tel: + 39 06 72594562<br>
<br>
</div>
</span></div>
</blockquote>
<pre class="x_moz-signature" cols="72">--
================================================
Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
Istituto Nazionale di Fisica Nucleare
Sezione di Roma Tor Vergata, Rome Italy
<a class="x_moz-txt-link-abbreviated" href="mailto:email:annalisa.dangelo@roma2.infn.it" moz-do-not-send="true">email:annalisa.dangelo@roma2.infn.it</a>
Jefferson Laboratory, Newport News, VA USA
Email: <a class="x_moz-txt-link-abbreviated" href="mailto:annalisa@jlab.org" moz-do-not-send="true">annalisa@jlab.org</a>
Tel: + 39 06 72594562
</pre>
</div>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
================================================
Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
Istituto Nazionale di Fisica Nucleare
Sezione di Roma Tor Vergata, Rome Italy
<a class="moz-txt-link-abbreviated" href="mailto:email:annalisa.dangelo@roma2.infn.it">email:annalisa.dangelo@roma2.infn.it</a>
Jefferson Laboratory, Newport News, VA USA
Email: <a class="moz-txt-link-abbreviated" href="mailto:annalisa@jlab.org">annalisa@jlab.org</a>
Tel: + 39 06 72594562
</pre>
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