NONPERTURBATIVE CORRECTIONS TO ONE-GLUON EXCHANGE QUARK POTENTIALS

Authors
YANG JJ SHEN HQ LI GL HUANG T SHEN PN
Citation
Jj. Yang et al., NONPERTURBATIVE CORRECTIONS TO ONE-GLUON EXCHANGE QUARK POTENTIALS, Nuclear physics. A, 640(3-4), 1998, pp. 457-470
Citations number
23
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
640
Issue
3-4
Year of publication
1998
Pages
457 - 470
Database
ISI
SICI code
0375-9474(1998)640:3-4<457:NCTOEQ>2.0.ZU;2-L
Abstract
The leading non-perturbative QCD corrections to the one-gluon exchange quark-quark, quark-antiquark and q (q) over bar pair-excitation poten tials are derived by using a covariant form of non-local two-quark and two-gluon vacuum expectation values, Our numerical calculation indica tes that the correction of quark and gluon condensates to the quark-an tiquark potential improves the heavy quarkonium spectra to some degree . (C) 1998 Elsevier Science B.V.