Gauge theory renormalizations from the open bosonic string

Details Gauge theory renormalizations from the open bosonic string Gauge theory renormalizations from the open bosonic string

1995-02-28

arxiv.org/abs/hep-th/9502156v1

Phys.Lett.B351:445-454,1995

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, latex, no figures

Scientific paper

10.1016/0370-2693(95)00414-G

We present a unified point of view on the different methods available in the literature to extract gauge theory renormalization constants from the low-energy limit of string theory. The Bern-Kosower method, based on an off-shell continuation of string theory amplitudes, and the construction of low-energy string theory effective actions for gauge particles, can both be understood in terms of strings interacting with background gauge fields, and thus reproduce, in the low-energy limit, the field theory results of the background field method. We present in particular a consistent off-shell continuation of the one-loop gluon amplitudes in the open bosonic string that reproduces exactly the results of the background field method in the Feynman gauge.

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