3 research outputs found
Photons from axial-vector radiative decay in a hadron gas
Strange and non-strange axial-vector meson radiative decays contribute to
photon production in hadron gas. One- and two-hadron radiative decay modes of
, and are studied. At 200 MeV
temperature and for a narrow range in photon energies they contribute more to
the net thermal photon production rate than ,
or . They provide
significant contribution to the rate for photon energies as high as 1.5--2.0
GeV. For higher energies they are less important.Comment: 10 pages + 7 figures uuencoded in separate file, MSUCL-92
Photoproduction of the Eta-Prime Mesons as a New Tool to Probe Baryon Resonances
We examine eta prime photoproduction, as a novel tool to study baryon
resonances around 2 GeV, of particular interest to the quark shell model, which
predicts a number of them. We find important roles of the form factors at the
strong vertices, and show that the N^*(2080) can be probed efficiently by this
reaction.Comment: Will be published in Phys. Rev.