Off-the-Wall Higgs in the Universal Randall-Sundrum Model

Davoudiasl, Hooman ; /Wisconsin U., Madison ; Lillie, Ben ; Rizzo, Thomas G. ; /SLAC

Stanford Linear Accelerator Center

关键词: Phenomenology-Hep,Hepph, Hepth;    Kaluza-Klein Theory Phenomenology-Hep,Hepph, Hepth;    72 Physics Of Elementary Particles And Fields;    Symmetry Breaking;    Higgs Bosons;   

DOI  :  10.2172/878429
RP-ID  :  SLAC-PUB-11357
RP-ID  :  AC02-76SF00515
RP-ID  :  878429

美国|英语

来源: UNT Digital Library

【 摘 要 】

We outline a consistent Randall-Sundrum (RS) framework in which a fundamental 5-dimensional Higgs doublet induces electroweak symmetry breaking (EWSB). In this framework of a warped Universal Extra Dimension, the lightest Kaluza-Klein (KK) mode of the bulk Higgs is tachyonic leading to a vacuum expectation value (vev) at the TeV scale. The consistency of this picture imposes a set of constraints on the parameters in the Higgs sector. A novel feature of our scenario is the emergence of an adjustable bulk profile for the Higgs vev. We also find a tower of nontachyonic Higgs KK modes at the weak scale. We consider an interesting implementation of this ''Off-the-Wall Higgs'' mechanism where the 5-dimensional curvature-scalar coupling alone generates the tachyonic mode responsible for EWSB. In this case, additional relations among the parameters of the Higgs and gravitational sectors are established. We discuss the experimental signatures of the bulk Higgs in general, and those of the ''Gravity-Induced'' EWSB in particular.