Implications of a $\chi (3.86)$ State for Theoretical Models

Abstract

Recent preliminary evidence for a $D\bar{D}$ state $\chi (3.86)$ raises extremely interesting implications for theoretical models, particularly those currently in vogue, e.g. the flux tube model and a molecular charmonium picture. We examine the experimental consequences as well as the possible unveiling of a strata of C-exotic states in heavy quarkonia systems by future facilities like BES Upgrade/Tau-Charm Factory and CLEO III/B-Factories.

Comments: 7 pages, LATEX format, no figures, no tables