Possible effects of color screening and large string tension in heavy quarkonium spectrum

Abstract

Possible effects of the color screened confinement potential are investigated. Color screened linear potential with a large string tension $T=(0.26-0.32)Ge{V}^2$ is suggested by a study of the $c\bar{c}$ and $b\bar{b}$ spectra. The $\psi (4160)$ and $\psi (4415)$ are respectively assigned as the $\psi (4S)$-dominated and the $\psi (5S)$ $c\bar{c}$ states. Satisfactory results for the masses and leptonic widths (with QCD radiative corrections) of $c\bar{c}$ and $b\bar{b}$ states are obtained.

arXiv comment11 pages in Latex

References in corpus (1)

• Heavy Quarkonium Potential Model and the ${}^1{P}_1$ State of Charmonium

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