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<pre wrap="">Theory Center Seminar
Monday, April 25, 2011
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room L104
Fei Huang
University of Georgia
<b class="moz-txt-star"><span class="moz-txt-tag"></span>Pion Photoproduction in a Dynamical Coupled-Channel Model<span class="moz-txt-tag"></span></b>
The dynamical coupled-channels model developed by
Juelich-Georgia group is presented, which presently includes the
gamma-N, pi-N, eta-N and Sigma-K stable channels as well as the
effective pi-pi-N channels pi-Delta, rho-N and sigma-N. Recent progress
on the description of pi-N --> Sigma-K and pion photoproduction within
this model is discussed, with the emphasis given on the gauge invariance
of the photoproduction amplitudes.
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