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Abstract
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 \(q \bar{q}\) 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 \(q\bar{q}\) pair-excitation potential with \(\omega_q=0\), the linear, square and cubic terms arise from the nonzero quark and gluon condensates.
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1 Department of Physics, Nanjing Normal University, Nanjing 210097, China , CN
2 China Center of Advanced Science and Technology (World Laboratory), P.O.Box 8730, Beijing 100080, China , CN





