Universality of the Pinch Technique Gauge Boson Self-Energies

Abstract

It is shown how the S-matrix pinch technique may be extended to the cases of external scalar and gauge boson fields. Using this extension, the universality of the pinch technique gauge-independent one-loop gauge boson self-energy in a general unbroken SU($N$) gauge theory is demonstrated explicitly.

Comments: 17 pages, plain Latex, previously omitted case now included