Published January 29, 2007 | Version v1
Journal article

Electroweak symmetry breaking and precision tests with a fifth dimension

  • 1. ISAS-SISSA and INFN, Via Beirut 2-4, I-34013 Trieste (Italy)
  • 2. IFAE, Universitat Autonoma de Barcelona, 08193 Bellaterra, Barcelona (Spain)

Description

We perform a complete study of flavor and CP conserving electroweak observables in a slight refinement of a recently proposed five-dimensional model on R4xS1/Z2, where the Higgs is the internal component of a gauge field and the Lorentz symmetry is broken in the fifth dimension. Interestingly enough, the relevant corrections to the electroweak observables turn out to be of universal type and essentially depend only on the value of the Higgs mass and on the scale of new physics, in our case the compactification scale 1/R. The model passes all constraints for 1/R>=4.7 TeV at 90% C.L., with a moderate fine-tuning in the parameters. The Higgs mass turns out to be always smaller than 200 GeV although higher values would be allowed, due to a large correction to the T parameter. The lightest non-SM states in the model are typically colored fermions with a mass of order 1-2 TeV

Additional details

Identifiers

DOI
10.1016/j.nuclphysb.2006.10.032;
arXiv
arXiv:hep-ph/0605292v3;
PII
S0550-3213(06)00858-3;

Publishing Information

Journal Title
Nuclear Physics. B
Journal Volume
762
Journal Issue
1-2
Journal Page Range
p. 189-211
ISSN
0550-3213
CODEN
NUPBBO

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.