Wilson Loop and the Treatment of Axial Gauge Poles

Details Wilson Loop and the Treatment of Axial Gauge Poles Wilson Loop and the Treatment of Axial Gauge Poles

1999-12-03

arxiv.org/abs/hep-th/9912020v4

Mod.Phys.Lett. A15 (2000) 541-546; Erratum-ibid. A15 (2000) 1539

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, LaTex; some typos related to equation (18) corrected

Scientific paper

10.1142/S0217732300000530

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).

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