Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session EE: Mini-symposium: Photoproduction and Electroproduction of Hadrons I
7:00 PM–9:30 PM,
Thursday, October 25, 2018
Hilton
Room: King's 1
Chair: Ken Hicks, Ohio University
Abstract ID: BAPS.2018.HAW.EE.3
Abstract: EE.00003 : Impact of CLAS meson photoproduction experiments on N* spectroscopy*
7:45 PM–8:00 PM
Presenter:
Eugene Pasyuk
(Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 USA)
Author:
Eugene Pasyuk
(Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 USA)
When the first nucleon resonance, Δ, was observed in pion-nucleon scattering in 1952, the nucleon resonance era begun Almost seven decades later the latest edition of the Review of the Particle Physics lists 50 non-strange baryons. Nonetheless, models consistently predict still more states yet to be observed - the so-called "missing resonance problem". Until the mid 90s, of the twentieth century most of the data on the nucleon resonances came from pion-nucleon scattering. However over the last two decades the focus has shifted to exclusive meson photoproduction experiments as the main source of new information about nucleon excitations. The CEBAF Large Acceptance Spectrometer, CLAS, emerged as the major contributors to this field. An overview of CLAS photoproduction experiments will be presented and their impact on N* spectroscopy will be discussed.
*This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE-AC05-06OR23177.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.EE.3
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