Implications of a χ(3.86) state for theoretical models

Recent preliminary evidence for a DD state χ(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.