Nonperturbative Corrections to One Gluon Exchange Quark Potentials

Details Nonperturbative Corrections to One Gluon Exchange Quark Potentials Nonperturbative Corrections to One Gluon Exchange Quark Potentials

1998-07-22

arxiv.org/abs/hep-ph/9807463v1

Nucl.Phys. A640 (1998) 457-470

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 16 pages, three figures, to appear in Nucl. Phys. A

Scientific paper

10.1016/S0375-9474(98)00448-5

The leading nonperturbative QCD corrections to the one gluon exchange quark-quark, quark-antiquark and $q \bar{q}$ pair-excitation potentials are derived by using a covariant form of nonlocal two-quark and two-gluon vacuum expectation values. Our numerical calculation indicates that the correction of quark and gluon condensates to the quark-antiquark potential improves the heavy quarkonium spectra to some degree.

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