T-quarkonian energy levels and the strong-interaction coupling constant

Abstract

We use a potential model incorporating a carefully estimated value of the strong-interaction coupling strength to calculate the energy-level spacings in t-quarkonium. We find that, for a top-quark mass of about 40 GeV the energy difference of the first two levels in t quarkonium is about 700 MeV, or more than 100 MeV larger than the analogous energy differences in charmonium and b quarkonium.