Department of Physics & Astronomy, University of Pittsburgh
Hadron form-factors and meson photoproduction reactions
"Recent experimental efforts at several facilities, e.g.
JLAB, Mainz, etc, are providing very accurate experimental
data on several reactions at energies where the transition
from meson-baryon to quark degrees of freedom should
be taking place.
Relativistic quark models provide a useful tool in this
domain, providing a framework that allows to study
simultaneously different aspects, e.g. form factors,
hadronic spectra, meson production reactions.
We will present studies of the electromagnetic form factors
of light mesons and of the electromagnetic and axial form
factors of the Nucleon, Delta(1232) and N*(1440). We will
emphasize the differences obtained with the different forms
of kinematics in, for instance, the electric form factor
of the proton.
Finally we will present preliminary results of a coupled-channel
model for Kaon photoproduction where the bare reaction mechanism
is obtained from the quark model."
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