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Título

On electroweak symmetry breaking in the littlest Higgs model

Autor Dobado, Antonio; Tabares-Cheluci, Lourdes; Peñaranda, Siannah
Palabras clave Composite Higgs
Supersymmetry
SU(2)
Fecha de publicación 20-feb-2007
EditorSocietà Italiana di Fisica
Springer
Citación European Physical Journal C 50(3): 647-654 (2007)
Serie IFIC/07-15
ResumenIn SU(5)/SO(5) little Higgs models radiative corrections give rise to SU(2)(L)xU(1)(Y) symmetry breaking. In this work we start a program for a detailed determination of the relevant terms of the effective Higgs potential by computing the contribution of the t, b and T quarks at the one-loop level, as a starting point for a higher-loop computation. In spite of the fact that some two-loop level contributions are well known to be important, we use our preliminary one-loop result to illustrate that, by demanding the effective potential to reproduce exactly the standard model Higgs potential, and in particular the relation m(H)^2 = 2λv^2 = 2μ^2, it will be possible to set new constraints on the parameter space of the littlest Higgs model when the computation of all the relevant contributions to the effective Higgs potential is completed.
Descripción 8 pages, 3 figures.-- ISI Article Identifier: 000245853100015.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-ph/0606031
Printed version published Apr 2007.
Versión del editorhttp://dx.doi.org/10.1140/epjc/s10052-007-0232-8
URI http://hdl.handle.net/10261/9174
DOI10.1140/epjc/s10052-007-0232-8
ISSN1434-6044 (Print)
1434-6052 (Online)
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