arXiv:hep-th/9912020·v4·High Energy Physics — Theory
Wilson Loop and the Treatment of Axial Gauge Poles
Satish D. Joglekar🇮🇳 · A. Misra ((1) Department of Physics, Indian Institute of Technology, Kanpur, UP, India (2) Institute of Physics, Sachivalaya Marg, Bhubaneswar, Orissa, India)🇮🇳
Abstract
We consider the question of gauge invariance of the Wilson loop in the light of a new treatment of axial gauge propagator proposed recently based on a finite field-dependent BRS (FFBRS) transformation. We remark that as under the FFBRS transformation the vacuum expectation value of a gauge invariant observable remains unchanged, our prescription automatically satisfies the Wilson loop criterion. Further, we give an argument for {\it direct} verification of the invariance of Wilson loop to O(g^4) using the earlier work by Cheng and Tsai. We also note that our prescription preserves the thermal Wilson loop to O(g^2).
Comments: 8 pages, LaTex; some typos related to equation (18) corrected