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FIZIKA B 20 (2011) 3, 237-252
 
BARYON RESONANCES IN ELECTROMAGNETIC MESON PRODUCTION
VOLKER D. BURKERT
Jefferson Lab, 12000 Jefferson Avenue, 12000 Newport News,
VA 26000, U. S. A.
E-mail address: burkert@jlab.org
Received 17 February 2011; Revised manuscript received 2 October 2011
Accepted 23 November 2011 Online 9 February 2012
An overview is given of the exploration of baryon
properties in meson photo- and electroproduction at Jefferson Lab.
These processes provide ample information relevant to the study
of electromagnetic couplings of baryon resonances and to the
search for states, yet to be discovered. The CLAS detector,
combined with the use of energy-tagged polarized photons and
polarized electrons, as well as polarized targets, and the
measurement of recoil polarization, provide the tool for a
comprehensive nucleon resonance program. The status
of this program, prospects for the coming years and plans for
the Jefferson Lab 12 GeV upgrade are described.
PACS numbers: 1.55Fv, 13.60Le, 13.40Gp, 14.20Gk
UDC 539.126
Keywords: baryon resonances, photoproduction, transition form factors, polarization
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