The dual gauge fixing property of the S matrix

Details The dual gauge fixing property of the S matrix The dual gauge fixing property of the S matrix

1996-06-10

arxiv.org/abs/hep-ph/9606292v1

Phys.Rev. D54 (1996) 6957-6962

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, Latex

Scientific paper

10.1103/PhysRevD.54.6957

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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