Little Higgs models and precision electroweak data

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Published 25 February 2004 • Published under licence by IOP Publishing Ltd
, , Citation Roberto Casalbuoni et al JHEP02(2004)032 DOI 10.1088/1126-6708/2004/02/032

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Author affiliations

1 Dipartimento di Fisica, Università di Firenze and I.N.F.N., Sezione di Firenze, I-50019 Firenze, Italy

2 Université de Lyon 1, Institut de Physique Nucléaire, 4 rue E. Fermi, F-69622 Villeurbanne Cedex, France

3 CEA DPTA-SPN, B.P. 12, F-91680 Bruyères-le-Châtel, France

Dates

  1. Received 5 November 2003
  2. Accepted 11 February 2004
  3. Published

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Abstract

We study the low energy limit of a Little Higgs model with custodial symmetry. The method consists in eliminating the heavy fields using their classical equations of motion in the infinite mass limit. After the elimination of the heavy degrees of freedom we can directly read off deviations from the precision electroweak data. We also examine the effects on the low energy precision experiments.

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An erratum page was received on 24 June 2004 and added to the end of the published paper on 25 January 2005.

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10.1088/1126-6708/2004/02/032