Impact of Yukawa-like dimension-5 operators on the Georgi-Machacek model

Abstract

We study the effects of including Yukawa-like dimension-5 operators in the Georgi-Machacek model where the Standard Model is augmented with triplet scalars. We focus only on the charged Higgs sector and investigate the constraints arising from radiative B-meson decays, neutral B-meson mixing and precision measurement of Zbb vertex. We observe that the inclusion of the dimension-5 operators causes substantial alteration of the limits on the charged Higgs masses and the vacuum expectation value of the triplets, derived otherwise using only the dimension-4 operators.

arXiv comment11 pages, 2 captioned figures, minor changes in text, to appear in Phys. Rev. D

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• Charged Higgs decay to $W^{\pm }$ and heavy neutral Higgs decaying into ${\tau }^{+}{\tau }^{-}$ in Georgi Machacek Model at LHC
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• Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics
• The impact of nonminimal Universal Extra Dimensional model on $\Delta B=2$ transitions
• Fingerprinting the contribution of colored scalars to the $H^{+}{W}^{-}Z(\gamma )$ vertex
• Indian Contributions to LHC Theory
• Exotic Decays and Collider Signatures of pNGB Scalars in the $SU(5)/SO(5)$ Composite Higgs Model