DOI 10.1007/s100529801019
Nonperturbative corrections of quark and gluon condensates to QCD inspired quark potentials
J.J. Yang1,2,3 - H.Q. Shen1 - G.L. Li2,3 - T. Huang2,3 - P.N. Shen2,3
1 Department of Physics, Nanjing Normal University,
Nanjing 210097, China
2 China Center of Advanced Science and Technology
(World Laboratory),
P.O.Box 8730, Beijing 100080, China
3 Institute of High Energy Physics, Academia Sinica,
P.O.Box 918(4),
Beijing 100039, China
Received: 22 June 1998 / Revised version: 10 August 1998 / Published online: 29 October 1998
Abstract
We adopt the Lorentz gauge to derive the non-local two-gluon vacuum
expectation value (VEV) with translational invariance.
By means of the obtained non-local two-gluon VEV,
the leading nonperturbative QCD corrections to
one gluon exchange quark-quark, quark-antiquark and
pair-excitation potentials are given by employing
non-vanishing vacuum condensates of quarks and gluons to modify
the free gluon propagator. The linear, cubic and Yukawa-type terms
in quark-quark potential appear automatically.
In the pair-excitation potential with 
, the
linear, square and cubic terms arise from the nonzero
quark and gluon condensates.
Copyright Springer-Verlag
