The Lightest Strange Scalar Resonance

Abstract

I present the results of a recent calculation to determine the number of strange scalar resonances below 1.8 GeV based on the analytic properties of the experimental pi K scattering amplitude. Only one resonance was found in the data, and this is readily identifiable as the K_0^*(1430). We found no evidence to support the kappa(900).

Comments: 6 pages, 2 EPS figures. Talk given by S. Cherry at the LNF Spring School in Nuclear, Subnuclear and Astroparticle Physics 15-20 May 2000, Frascati - Italy