[Halld-physics] QNP 2018 Abstract

[jzarling at jlab.org]

Dear collaborators,

I am also planning on submitting an abstract to the 8th International
Conference on Quarks and Nuclear Physics in November on our beam asymmetry
physics results. We've received enthusiasm for three GlueX talks from one
of the conference organizers.

The abstract is below, and a pdf also attached. Please let me know if
anyone has comments or suggestions.



Meson Photoproduction Dynamics with the GlueX Experiment

The GlueX experiment is poised to further our understanding of light
mesons, particularly in search of exotic hybrids predicted among light
unflavored mesons. Measurements of the production distribution of
pseudoscalars with an 8.2-8.8 GeV linearly polarized photon beam can
provide theoretical insight into the production mechanisms for these
exotic hybrids mesons. The distribution of angle between photon beam
polarization plane and pseudoscalar meson production plane allows one to
construct a beam asymmetry that gives understanding into the relative
amplitudes of the quasi-particles exchanged with the proton target in such
reactions. We report beam asymmetry measurements for $\pi^0$, $\pi^-$,
$\eta$, and $\eta'$ photoproduction. These are the first measurements of
$\eta$ and $\eta'$ beam asymmetries and provide improved measurements of
$\pi^0$ and $\pi^-$ systems. Comparisons to several model predictions will
be made.


Best,
Jon
-------------- next part --------------
A non-text attachment was scrubbed...
Name: meson-photoproduction-dynamics.pdf
Type: application/pdf
Size: 50946 bytes
Desc: not available
URL: <https://mailman.jlab.org/pipermail/halld-physics/attachments/20180627/02ad6e27/attachment-0001.pdf>