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<p>Greetings,</p>
I calculated the systematic of the track efficiency to be ~ 5% over
all kinematic bins of the correction.<br>
Can you clarify what you mean by " but it comes with a large
systematic uncertainty."
<pre class="moz-signature" cols="72">BR
MK
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Michael C. Kunkel, PhD
Forschungszentrum Jülich
Nuclear Physics Institute and Juelich Center for Hadron Physics
Experimental Hadron Structure (IKP-1)
<a class="moz-txt-link-abbreviated" href="http://www.fz-juelich.de/ikp">www.fz-juelich.de/ikp</a></pre>
<div class="moz-cite-prefix">On 7/12/16 7:38 PM, Volker Crede wrote:<br>
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<div>Lei,</div>
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<div>Bad TOF paddles were knocked out. The z-dependence cannot be
properly taken care of by MK's efficiency map since it depends
on the kinematics of the final-state particles. It can provide
an average correction which we have been using but it comes with
a large systematic uncertainty.</div>
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<div>- Volker</div>
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<div>On Jul 12, 2016, at 1:34 PM, Lei Guo <<a
moz-do-not-send="true" href="mailto:lguo@jlab.org">lguo@jlab.org</a>>
wrote:</div>
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<div style="word-wrap: break-word; -webkit-nbsp-mode: space;
-webkit-line-break: after-white-space;" class="">We should
expect that the acceptance is z-dependent since it’s such a
long target. MK’s efficiency map also is z-dependent. Has
the map been applied, and the photon multiplicity been dealt
with correctly? Was the bad TOF paddles knocked out?
<div class=""><br class="">
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<div apple-content-edited="true" class="">
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<div class="">Lei Guo</div>
<div class="">Assistant Professor</div>
<div class="">Physics Department</div>
<div class="">Florida International University</div>
<div class="">Miami, FL</div>
</div>
<div class=""><br class="">
</div>
<div class="">email: <a moz-do-not-send="true"
href="mailto:leguo@fiu.edu" class="">leguo@fiu.edu</a> or
<a moz-do-not-send="true"
href="mailto:lguo@jlab.org" class="">lguo@jlab.org</a></div>
<div class="">Office:305-348-0234</div>
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