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arXiv · hep-ph/9606292

The dual gauge fixing property of the S matrix

Joannis Papavassiliou·Kostas Philippides
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Abstract

The $S$-matrix is known to be independent of the gauge fixing parameter to all orders in perturbation theory. In this paper by employing the pinch technique we prove at one loop a stronger version of this independence. In particular we show that one can use a gauge fixing parameter for the gauge bosons inside quantum loops which is different from that used for the bosons outside loops, and the $S$-matrix is independent from both. Possible phenomenological applications of this result are briefly discussed.

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Joannis Papavassiliou, Kostas Philippides. 1996-06-10. The dual gauge fixing property of the S matrix. https://doi.org/10.1103/physrevd.54.6957

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