The 1.4 GeV J^PC = 1^-+ state as an interference of a non-resonant background and a resonance at 1.6 GeV

Abstract

We investigate theoretical interpretations of the 1.4 GeV J^PC exotic resonance reported by the E852 collaboration. A K-matrix analysis shows that the 1.4 GeV enhancement in the E852 eta pi data can be understood as an interference of a non-resonant Deck-type background and a resonance at 1.6 GeV.

Comments: 6 pages, LaTeX, 4 encapsulated postscript figures. Contributed talk (Abstract 459) presented by P.R. Page at the 29^th Int. Conf. on High Energy Physics (ICHEP'98), Vancouver, B.C., Canada, July 23-29, 1998. Comparison with experimental data added in Figure 3