Summary
Heavy-quarkonium spectroscopy is discussed in the non-relativistic quark model for a hybrid potential which is Coulomb plus square-root (ur 2−v)1/2 suggested by string theory at long distance and Coulomb plus harmonic at short distance. The predictons for the e+e− decay widths of the c\(\overline c \) and b\(\overline b \) bound states are also given. Our results for the energy levels and the leptonic decay widths are in very good agreement with the experimental data for b\(\overline b \) and reasonable for c\(\overline c \) with almost the same values ofa s (c\(\overline c \)) anda s(b\(\overline b \)).
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Itoh, C., Minamikawa, T., Miura, K. et al. Heavy-quarkonium spectroscopy and leptonic decay widths. Nuov Cim A 109, 569–574 (1996). https://doi.org/10.1007/BF02731139
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DOI: https://doi.org/10.1007/BF02731139