String corrections to gauge couplings from a field theory approach

Details String corrections to gauge couplings from a field theory approach String corrections to gauge couplings from a field theory approach

2002-12-13

arxiv.org/abs/hep-ph/0212197v2

Class.Quant.Grav. 20 (2003) S495-S500

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex

Scientific paper

10.1088/0264-9381/20/12/315

An effective field theory approach is introduced to compute one-loop radiative corrections to the gauge couplings due to Kaluza-Klein states associated with a two-torus compactification. The results are compared with those of the string in the field theory ``limit'' alpha'-> 0. The whole U and the leading T moduli dependence of the gauge dependent part of the string corrections to gauge couplings can be recovered using the effective field theory approach.

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