Mass spectra and leptonic decay widths of heavy quarkonia

Details Mass spectra and leptonic decay widths of heavy quarkonia Mass spectra and leptonic decay widths of heavy quarkonia

1997-09-05

arxiv.org/abs/hep-ph/9709254v1

Eur.Phys.J.C4:107-114,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file, 19 pages; Zs. f. Ph. C in print

Scientific paper

10.1007/s100520050190

A nonrelativistic Hamiltonian with plausible spin dependent corrections is proposed for the quarkonia below their respective strong decay thresholds. With only six free parameters this model reproduces the nine known masses of the bottomonia within about 1 MeV, the six known masses of the charmonia within a few MeV and the five known leptonic decay widths of the ${}^3S_1$ states within about {20 %}. The model is then used to predict the masses of the remaining 43 quarkonia (some of them for the first time) and of the leptonic decay widths of the two ${}^1S_0(\bar{b}c)$ states. Comparison with some other models is made.

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