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<div class="moz-cite-prefix">Hi Natalia,<br>
<br>
Our FIU group has a new, incoming graduate student (Jonathan
Castellanos, <a class="moz-txt-link-abbreviated" href="mailto:jcastellanos12777@gmail.com">jcastellanos12777@gmail.com</a>) who would like to work
on the experiment for his dissertation. I was assuming he would
work on the SciFi but that is all very flexible. Jonathan has
about 2 years of classes, but should able to be resident at JLab
for a period before APEX runs, to help with setup, installation,
commissioning, etc. He will certainly be at JLab for the next
several summers.<br>
<br>
pete<br>
<br>
On 9/9/14, 10:06 AM, Natalia Toro wrote:<br>
</div>
<blockquote
cite="mid:CACtN9=hf-0jxyDn9NV_AAOCx6yDYKOtSo7RyF3erKkW1bVmubQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<p dir="ltr"
style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"
id="docs-internal-guid-cf9ae73f-5ab5-b755-e6b2-32d50c442b45"><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Dear
APEX and Hall A collaborators,</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">We
are writing to inquire if any one has graduate students who
would be interested in working on the APEX experiment. As
most of you know, APEX was among the PAC 41 experiments
prioritized for early running and is preparing for a
potential 2016 run. Several projects involved in this
preparation would provide excellent training opportunities
for students, and would prepare them for Masters and Ph.D.
theses. </span></p>
<p dir="ltr"
style="line-height:1.15;margin-top:0pt;margin-bottom:0pt"><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">As
a reminder, APEX will search for “dark photons”, a new,
massive force carrier with very weak couplings to ordinary
electrically charged matter. The experiment will cover an
important region of unexplored parameter space, motivated by
theoretical considerations and data anomalies that suggest
interactions of dark photons with the Universe’s dark
matter. The high sensitivity of APEX will permit a search
for an A' motivated by the muon g-2 anomaly, even if the A'
decay branching ratio to Standard Model particles is as low
as 1%.</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Key
projects in the preparation for APEX include:</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">–
Target: Development of the lifter and of target
modifications appropriate for all run settings </span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">–
Testing newly constructed SciFi detectors for optics
calibration and its implementation</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">–
Analysis of the radiation in the Hall and design of the
shielding</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">–
Developing high-rate track reconstruction algorithm for VDC
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">–
Field mapping of the newly constructed APEX septum (arriving
to JLab in October) </span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">All
projects should start very soon to allow timely preparation
of the run.</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">We
anticipate 2-3 Ph.D. theses and up to 4-5 Masters theses
based on data from the full APEX run. Ph.D. theses would
focus on several aspects of the physics analysis
(understanding the QED trident spectrum, the
resonance-search analysis in each of the four settings, and
statistical combination of different settings). Masters
thesis projects would be possible on each of the major
components of APEX (e.g. septum, target, radiation
shielding, SciFi detectors & their use in optics
calibration, VDC track reconstruction, particle ID). A few
of the Masters projects could be completed with existing
data before the full APEX run. Now is a great time for a
student to get involved with APEX and gain expertise for
such projects!</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">If
you have a qualified and interested student, please email
Bogdan Wojtsekhowski to coordinate.</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Thanks
and best regards,</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Rouven
Essig,</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Philip
Schuster,</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Natalia
Toro, </span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Bogdan
Wojtsekhowski</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><br
class="">
</span><span
style="font-size:15px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:normal;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">(APEX
spokespeople)</span></p>
</div>
<br>
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<br>
<pre wrap="">_______________________________________________
Halla_coll mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Halla_coll@jlab.org">Halla_coll@jlab.org</a>
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/halla_coll">https://mailman.jlab.org/mailman/listinfo/halla_coll</a></pre>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Dr. Pete E.C. Markowitz Florida International University
Internet: <a class="moz-txt-link-abbreviated" href="mailto:markowit@fiu.edu">markowit@fiu.edu</a> Fellow of the Honors College
Phone: (305) 348-1710 Physics Department
FAX: (305) 348-6700 CP209 Miami FL, 33199
</pre>
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