The Three Site Model at One-Loop

Details The Three Site Model at One-Loop The Three Site Model at One-Loop

2007-02-21

arxiv.org/abs/hep-ph/0702218v2

Phys.Rev.D75:075012,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

40 pages, nine included eps figures. Minor corrections made

Scientific paper

10.1103/PhysRevD.75.075012

In this paper we compute the one-loop chiral logarithmic corrections to all O(p^4) counterterms in the three site Higgsless model. The calculation is performed using the background field method for both the chiral- and gauge-fields, and using Landau gauge for the quantum fluctuations of the gauge fields. The results agree with our previous calculations of the chiral-logarithmic corrections to the S and T parameters in 't Hooft-Feynman gauge. The work reported here includes a complete evaluation of all one-loop divergences in an SU(2) x U(1) nonlinear sigma model, corresponding to an electroweak effective Lagrangian in the absence of custodial symmetry.

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