Speaker
Description
Studies of meson spectra via strong decays provide insight regarding QCD at the
confinement scale. These studies have led to phenomenological models for QCD
such as the constituent quark model. However, QCD allows for a much richer
spectrum of meson states which include extra states such as hybrids, exotics,
multi-quarks, and glueballs. Within the past two decades a number of
experiments have put forth tantalizing evidence for the existence of light
quark exotic hybrid mesons in the mass range below $2 ~GeV$. Recent Lattice QCD
calculations of the light-quark meson spectrum indicate a constituent
gluon-like excitation contributing an additional $J^{PC} = 1^{+-}$ and mass
$1-1.5 ~GeV$ resulting in the lightest hybrid nonets with masses near $2.0
~GeV$. High statistical yields from recent experiments along with new advances
in analysis techniques have shed a new light towards the understanding the
latest experimental exotic candidates. Recent results from
photo-production will be presented.
