The electroweak S and T parameters from a fixed point condition

Details The electroweak S and T parameters from a fixed point condition The electroweak S and T parameters from a fixed point condition

2011-02-10

arxiv.org/abs/1102.2113v1

Phys.Rev.Lett.107:021803,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.107.021803

We consider the standard model without the Higgs boson, where the Goldstone modes are described by a nonlinear sigma model. We study the renormalization group flow of the sigma model coupling f and of the electroweak parameters S and T. The condition that the couplings reach a fixed point at high energy leaves the low energy values of f and T arbitrary (to be determined experimentally) and fixes S to a value compatible with electroweak precision data.

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