A General Higgs Sector: Constraints and Phenomenology

Abstract

We have investigated some phenomenological aspects of an $SU(2)\times U(1)$ scenario where scalars belonging to arbitrary representations of $SU(2)$ are involved in electroweak symmetry breaking. The resulting interaction terms are derived. Some constraints are obtained on the arbitrary scalar sector from the requirement of tree-level unitarity in longitudinal gauge boson scattering. We also show that, in cases where the scalars ensure $\rho =1$ at tree-level, useful restrictions on their parameter space follow from precision measurements of the $Zb\bar{b}$ vertex. Finally, some salient features about the production of such Higgs bosons in $e^{+}{e}^{-}$ collision are discussed.

42 pages, LATEX, 4 figures (hard copies of figures available on request)

Cited by in corpus (15)

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• Radiative Corrections to the $Zb\bar{b}$ Vertex and Constraints on Extended Higgs Sectors
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• Very light CP-odd scalar in the Two-Higgs-Doublet Model
• Some consequences of a Higgs triplet
• Searching for the triplet Higgs sector via central exclusive production at the LHC
• Triplet Higgs boson at hadron colliders
• Associated single photons as signals for a doubly charged scalar at linear e-e- colliders
• Multi-photon signatures at the Fermilab Tevatron
• Cascade decays of triplet Higgs bosons at LEP2
• ZZH coupling : A probe to the origin of EWSB ?
• Custodial symmetry, Georgi-Machacek model, and other scalar extensions
• Some new observations for the Georgi-Machacek scenario with triplet Higgs
• The $\rho$ parameter and the CDF W-mass anomaly: observations on the role of scalar triplets
• Phenomenological study of $Z^{\prime }$ in the minimal $B-L$ model at LHC