[Halld-physics] DNP abstract

[Curtis Meyer]

I think we need to be careful about simultaneous analyses of GlueX and data from another hall.We discussed these issues at the last collaboration meeting and the
CB is working to provide some guidance.

Curtis
---------
Curtis A. Meyer MCS Associate Dean for Research
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On Jun 25, 2019, at 14:15, Isabella Illari <izzy at jlab.org<mailto:izzy at jlab.org>> wrote:


Hello all,

I am planning to submit an abstract to the DNP meeting, appended below. Also on the author list is Will Phelps and Olga Cortes Becerra. Any feedback will be welcomed and appreciated.

All the best,

Izzy

ABSTRACT:

Photoproduction of the Omega- in JLab's Hall B CLAS12 and Hall D GlueX
Isabella Illari1, Olga Cortes Becerra1, William Phelps1
1Physics Department, The George Washington University, Washington, D.C. 20052

The photoproduction of the very strange hyperon, the Omega-, cross-section is unknown. The dynamics of the Omega photoproduction is unclear – there are no strange quarks in the initial case while three quarks are in the final state. There are theoretical predictions for the Omega- hyperon photo- and electroproduction that varies from 1 to 300 pb, but there is only an upper limit of the cross section (σt < 17 nb at 20 GeV) reported by SLAC. In order to measure the cross section for γp → Ω−K+K+K0 and to study the reaction mechanism for the Ω− in photoproduction we will analyze data from two of the experimental halls at Thomas Jefferson National Accelerator Facility. The CLAS12 physics program studies baryon spectroscopy with quasi-real photoproduction in a large variety of final states, and Run Group A (RG-A) experiments require an 11 GeV beam and a liquid hydrogen target. The GlueX (Phase I) physics program studies experiments with a broad-band photon beam produced by ~12 GeV electrons. Thus, we are aiming to develop a better understanding of the mechanism of "Very Strange" hyperon photoproduction, and to obtain accurate measurements of a cross section like the Omega- using data from CLAS12 and GlueX.

This work was performed with support from US DOE DE-SC001658, The George Washington University, and Thomas Jefferson National Accelerator Facility.

--
Izzy Illari
pronouns: they/their/them

Physics Ph.D candidate
Columbian College of Arts & Sciences, George Washington University
A.B. in Physics
Barnard College, Columbia University 2017

GWU Foggy Bottom Office:
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Personal:
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