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Non-perturbative corrections to one-gluon exchange quark potentials |
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| Authors: | J. J. Yang H. Q. Shen G. L. Li T. Huang P. N. Shen |
| Affiliation: | a Department of Physics, Nanjing Normal University, Nanjing 210097, China b China Center of Advanced Science and Technology (World Laboratory), P.O. Box 8730, Beijing 100080, China c Institute of High Energy Physics, Academia Sinica, P.O. Box 918(4), Beijing 100039, China |
| Abstract: | The leading non-perturbative QCD corrections to the one-gluon exchange quark-quark, quark-antiquark and pair-excitation potentials are derived by using a covariant form of non-local 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. |
| Keywords: | Non-perturbative QCD Quark potential Quark and gluon condensates Quarkonium Mass spectrum |
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