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<p>It looks like in the last cooked run the polarization drops,
while NMR shows higher polarization. Will be great to cook another
run to check if that effect is real.</p>
<p>Harut</p>
<p></p>
<div class="moz-cite-prefix">On 2/19/2023 10:53 PM, Christopher
Keith wrote:<br>
</div>
<blockquote type="cite"
cite="mid:MN2PR09MB5770E472D2F0FFAD52AA078FB3A49@MN2PR09MB5770.namprd09.prod.outlook.com">
<div>Harut,</div>
</blockquote>
<blockquote type="cite"
cite="mid:MN2PR09MB5770E472D2F0FFAD52AA078FB3A49@MN2PR09MB5770.namprd09.prod.outlook.com">
<div>The sudden jump in the NMR readings are not real. The
original calibration for the NMR gave low results, but we have
reason to suspect its accuracy. James Maxwell later adjusted it
so the NMR would roughly agree with Gregory Matousek’s inclusive
DIS analysis. </div>
<div><br>
</div>
<div><a class="moz-txt-link-freetext" href="https://logbooks.jlab.org/entry/4133528">https://logbooks.jlab.org/entry/4133528</a><br>
</div>
<div><br>
</div>
<div>Since then the NMR and online trigger asymmetry have been
tracking one another pretty closely. If we have time, we’ll try
to get a better NMR calibration tomorrow. </div>
<div><br>
</div>
<div>Chris</div>
<div><br>
</div>
<div><br>
</div>
<hr tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><b>From:</b> Rgc
<a class="moz-txt-link-rfc2396E" href="mailto:rgc-bounces@jlab.org"><rgc-bounces@jlab.org></a> on behalf of Harut Avagyan via Rgc
<a class="moz-txt-link-rfc2396E" href="mailto:rgc@jlab.org"><rgc@jlab.org></a><br>
<b>Sent:</b> Sunday, February 19, 2023 10:40 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:silvia@jlab.org">silvia@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:silvia@jlab.org"><silvia@jlab.org></a><br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:rgc@jlab.org">rgc@jlab.org</a> <a class="moz-txt-link-rfc2396E" href="mailto:rgc@jlab.org"><rgc@jlab.org></a><br>
<b>Subject:</b> Re: [Rgc] more cooked runs in HBT for
polarization checks
<div> </div>
</div>
<div class="BodyFragment"><span>
<div class="PlainText">Dear All,<br>
<br>
The TPol meaurement based on the DIS using the latest runs
is shown in<br>
<br>
<a
href="https://userweb.jlab.org/~avakian/tmp/all-rgc-run-dep-17574-17604.nh3.pdf"
moz-do-not-send="true" class="moz-txt-link-freetext">https://userweb.jlab.org/~avakian/tmp/all-rgc-run-dep-17574-17604.nh3.pdf</a><br>
<br>
It looks like while the NMR values (crosses) were lower
before, now are <br>
higher than the actual polarization measured from DIS.<br>
<br>
Best,<br>
<br>
Harut<br>
<br>
On 2/19/2023 7:11 AM, Silvia Niccolai via Rgc wrote:<br>
> Hello all,<br>
> more cooked runs (HBT) are available for polarization
checks:<br>
> /volatile/clas12/rg-c/production/dst/8.5.0_HBT/<br>
> Best regards,<br>
> Silvia<br>
><br>
><br>
> _______________________________________________<br>
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</div>
</span></div>
</blockquote>
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