[Halld-physics] Abstract for SESAPS

[Alexander Somov]

Hello everyone,


Below is a draft of an abstract, which I am going to submit to the

SESAPS meeting in November (I am planning to submit it at the

end of this week).


Cheers,

        Sasha



Prospects for Studying Photoproduction on Nuclear Targets
with the GlueX Detector



The GlueX detector in the experimental Hall D at Jefferson Lab
was designed to search for gluonic excitations in the spectra
of light mesons using photon beams. The detector provides a unique
capability to study photoproduction on nuclear targets and extend
the  physics  potential beyond the  main  spectroscopy  program.

A recently approved experiment in Hall D will study short-range
correlated  (SRC) pairing of nucleons within nuclei and search
for Color Transparency (CT) at large momentum transfer. SRC has never
been studied in photoproduction before. GlueX measurements will
provide a complementary check of the reaction mechanism to electron
and proton scattering. Measurement of the Color Transparency
will verify recent theoretical calculations for GlueX beam
energies and will decisively test the onset of CT.

Several other physics topics are considered for GlueX, such as the study of
the hadronic structure of the photon by measuring nuclear transparency
of vector mesons, and extraction of the cross section of longitudinally
polarized omega mesons on nucleons for the first time. Measurement of
nuclear transparency in a wide energy range is important for
understanding results from other experiments and will provide a
sensitive probe to the degree of photon shadowing in nuclear matter.

I will give an overview of the proposed physics program and
discuss GlueX plans for the future.

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