Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-09-24
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages uuencoded, unix compressed Postscript, HUTP-94/A030
Scientific paper
The light quark-antiquark scattering Green's function is considered near a meson resonance peak. The Bethe-Salpeter equation is used to write formal expressions for the resonance width/mass ratio. Arguments are made concerning to what extent this ratio can be calculated perturbatively, and an upper bound is placed on the growth of this ratio as a function of radial excitation. Certain mesons and their radial excitations are considered, as well as the more general issue of classifying mesons in the quark model.
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