t -quarkonium predictions from an interquark potential with relativistic corrections

An interquark potential proposed recently to describe cc̄ and bb̄ systems is used to calculate some properties of the -tt system, for mₜ=40 and 45 GeV/c². It is shown how these properties [notably the 2S-1S spacing and the ratio Γ(2S→e⁺e^-)Γ(1S→e⁺e^-)] can be used to test the correctness of the underlying nonrelativistic QQ̄ potential, allowing one to return to relativistic corrections in cc̄ and bb̄ bound states with improved confidence.