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<p>Hi everyone,</p>
<p>Further to Justin's comment, and my forgetting APS/DNP abstracts
are limited to 1300 characters, I've substantially revised my
abstract. Same idea, but much shorter. New text below.</p>
<p>Cheers,</p>
<p>Stuart<br>
</p>
<pre class="moz-quote-pre" wrap="">
The GlueX facility, featuring a linearly polarised 9 GeV real photon beam delivered to a large-acceptance detector system, recently completed an initial phase of data taking at energies where quark systems beyond the known baryons and mesons, such as hybrid mesons, tetraquarks and glueballs, may be produced. Analysis efforts are well underway, and results are expected to shed new light on how quarks combine under the strong force, particularly the role played by gluons.
The work presented showcases efforts to measure beam asymmetries in the reaction $\gamma p\rightarrow p\eta\pi$, where both mesons decay to two photons, and whose invariant mass spectrum features both the $a_0(980)$ meson and a nearby signal from $a_2(1320)$. The beam asymmetry of the $\eta\pi$ system can be used to search for exotic signals, for instance through the presence of a non-zero P-wave contribution, which may be seen in asymmetry measurements at small opening angles in the meson decay frame.
Additionally, the t-dependence of the $a_0(980)$ beam asymmetry can provide insight into production mechanisms of this state. Future prospects for related analyses in this reaction topology, informed by these measurements, will also be discussed.</pre>
<div class="moz-cite-prefix">On 01/07/2019 15:05, Justin Stevens
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:FDF1B345-BAA3-46F1-9045-FD6896CB9F1B@jlab.org">
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Hi Stuart,
<div class=""><br class="">
</div>
<div class="">The abstract looks OK to me. The only qualm I would
have is with this statement</div>
<div class="">
<div class="page" title="Page 1">
<div class="layoutArea">
<div class="column">
<p class=""><span style="font-size: 11.000000pt;
font-family: 'CMR10'" class="">...where
quark systems beyond the three quark and
quark-antiquark systems of baryons and mesons, such
as hybrid mesons, tetraquarks and glueballs, should
exist </span></p>
</div>
</div>
</div>
<div>The “should exist” could be argued with, how about
replacing it “may be produced”?</div>
<div><br class="">
</div>
<div>-Justin</div>
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Jun 25, 2019, at 7:18 PM, Stuart fegan <<a
href="mailto:sfegan@jlab.org" class=""
moz-do-not-send="true">sfegan@jlab.org</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">Hi Everyone,<br class="">
<br class="">
I am planning to submit an abstract for the upcoming DNP
fall meeting, on the subject of a beam asymmetries in
the eta pi (four photon) system, including a0(980).
I'll be building on my existing eta pi beam asymmetry
from MENU and applying the lessons learned into the
a0(980) analysis. You'll find the abstract attached to
this email. Comments and suggestions are welcome.<br
class="">
<br class="">
Cheers,<br class="">
<br class="">
Stuart<br class="">
<br class="">
-- <br class="">
Dr Stuart Fegan<br class="">
Postdoctoral Researcher<br class="">
George Washington University/Hall-D<br class="">
F351, CEBAF Center<br class="">
<br class="">
<a href="mailto:sfegan@jlab.org" class=""
moz-do-not-send="true">E-mail: sfegan@jlab.org</a><br
class="">
Telephone: (757)-269-7473<br class="">
<br class="">
<span
id="cid:10A5FDA4-89D8-425C-9032-F50CA11B90A8@jlab.org"><DNPAbstract_fegan.pdf></span>_______________________________________________<br
class="">
Halld-physics mailing list<br class="">
<a class="moz-txt-link-abbreviated" href="mailto:Halld-physics@jlab.org">Halld-physics@jlab.org</a><br class="">
<a class="moz-txt-link-freetext" href="https://mailman.jlab.org/mailman/listinfo/halld-physics">https://mailman.jlab.org/mailman/listinfo/halld-physics</a><br
class="">
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Dr Stuart Fegan
Postdoctoral Researcher
George Washington University/Hall-D
F351, CEBAF Center
E-mail: <a class="moz-txt-link-abbreviated" href="mailto:sfegan@jlab.org">sfegan@jlab.org</a>
Telephone: (757)-269-7473</pre>
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