psi spectroscopy of a charm string
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We report the results of the application of the quark-confining string to the psi spectrum. The model is defined by a relativistically invariant action of quarks and color gauge fields. In the Schroedinger limit, where light quarks are neglected, this model (with two parameters) reduced to the charmonium model (with a linearly rising potential) plus additional vibrational levels. In the e/sup +/e/sup -/ channel, the first vibrational levels come at about 4.0 and 4.4 GeV. (AIP)