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The c¯c, b¯b, and t¯t spectra are investigated with the use of a semirelativistic potential model described in an earlier paper. Results for the energy levels, leptonic widths, and E1 transition widths are compared with the experimental data for c¯c, and b¯b, and predicted for t¯t. We also find that the quark-antiquark interaction can best be described by a quasistatic rather than a momentum-dependent potential, and propose a theoretical justification for this surprising conclusion.


This work was supported in part by the U.S. Department of Energy under Grant No. DE-FG02-85ER40209 and the National Science Foundation under Grant No. PHY -83-05722.

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© 1986 The American Physical Society

URL: DOI:10.1103/PhysRevD.34.201

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