Contributions of inert electroweak multiplets to Higgs properties

A bstract New physics could manifest itself in the form of electroweak multiplets that interact at tree level with the Higgs boson but do not mix with Standard Model fields or acquire expectation values. In this paper, we study the potential contributions of such inert multiplets to several crucial...

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Bibliographic Details
Published in:	The journal of high energy physics 2023-10, Vol.2023 (10), p.170-25, Article 170
Main Authors:	Beauchesne, Hugues, Chiang, Cheng-Wei
Format:	Article
Language:	eng
Subjects:	Anomalous Higgs Couplings Classical and Quantum Gravitation Elementary Particles Fine structure Higgs bosons Higgs Properties High energy physics New Gauge Interactions Phase transitions Photons Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Quarks Regular Article - Theoretical Physics Relativity Theory Specific BSM Phenomenology String Theory
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Summary:	A bstract New physics could manifest itself in the form of electroweak multiplets that interact at tree level with the Higgs boson but do not mix with Standard Model fields or acquire expectation values. In this paper, we study the potential contributions of such inert multiplets to several crucial Higgs properties, namely, the branching ratio of the Higgs to a Z boson and a photon (or massless dark photon) and the triple Higgs coupling. Constraints from the Higgs signal strengths, oblique parameters and unitarity are taken into account.
ISSN:	1029-8479 1029-8479