Higgs mechanism and bulk gauge boson masses in the Randall-Sundrum model

Huber, Stephan and Shafi, Q. (2001) Higgs mechanism and bulk gauge boson masses in the Randall-Sundrum model. Physical Review D, 63. 045010. ISSN 0556-2821

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Assuming the breaking of gauge symmetries by the Higgs mechanism, we consider the associated bulk gauge boson masses in the Randall-Sundrum background. With the Higgs field confined on the TeV-brane, the W and Z boson masses are naturally an order of magnitude smaller than their Kaluza-Klein excitation masses. The electroweak precision data require the lowest excited state to lie above about 30 TeV, with fermions on the TeV-brane. This bound is reduced to about 10 TeV if the fermions reside sufficiently close to the Planck-brane. Thus, some tuning of parameters is needed. We also discuss the bulk Higgs case, where the bounds are an order of magnitude smaller.

Item Type: Article
Additional Information: The conceptual parts were equally provided by Shafi and myself, the numerics was done by myself. We showed that gauge fields in warped geometry typically lead to large deviations in the electroweak observables. This stimulated research leading to more realistic models. It has accrued over 70 citations.
Keywords: Higgs mechanism, Bulk gauge boson masses, Randall-Sundrum model
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Gemma Farrell
Date Deposited: 14 Mar 2008
Last Modified: 01 Oct 2019 13:00
URI: http://sro.sussex.ac.uk/id/eprint/1636
Google Scholar:111 Citations

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