A new custodian for a realistic Higgsless model

Giacomo Cacciapaglia, Csaba Csáki, Guido Marandella, and John Terning

Phys. Rev. D 75, 015003 – Published 10 January 2007

Abstract

We present an example of a realistic Higgsless model that makes use of alternative $S U (2)_{R}$ assignments for the top and bottom quarks recently proposed by Agashe et al. which results in an enhanced custodial symmetry. Using these new representations reduces the deviations in the $Z b_{ℓ} {\bar{b}}_{ℓ}$ coupling to $\sim 4 %$ for a wide range of parameters, while this remaining correction can also be eliminated by varying the localization parameter (bulk mass) for $b_{r}$ .

Received 26 September 2006

DOI:https://doi.org/10.1103/PhysRevD.75.015003

Authors & Affiliations

Giacomo Cacciapaglia^1,2,*, Csaba Csáki^1,†, Guido Marandella^2,‡, and John Terning^2,§

¹Institute for High Energy Phenomenology Newman Laboratory of Elementary Particle Physics, Cornell University, Ithaca, New York 14853, USA
²Department of Physics, University of California, Davis, California 95616, USA

^*Electronic address: cacciapa@physics.ucdavis.edu
^†Electronic address: csaki@mail.lns.cornell.edu
^‡Electronic address: maran@physics.ucdavis.edu
^§Electronic address: terning@physics.ucdavis.edu

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Vol. 75, Iss. 1 — 1 January 2007

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Physical Review D

covering particles, fields, gravitation, and cosmology