Higgs phenomenology as a probe of sterile neutrinos

Butterworth, J. M., Chala, M., Englert, C. , Spannowsky, M. and Titov, A. (2019) Higgs phenomenology as a probe of sterile neutrinos. Physical Review D, 100, 115019. (doi: 10.1103/PhysRevD.100.115019)

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Abstract

Physics beyond the Standard Model can manifest itself as both new light states and heavy degrees of freedom. In this paper, we assume that the former comprise only a sterile neutrino, N . Therefore, the most agnostic description of the new physics is given by an effective field theory built upon the Standard Model fields as well as N . We show that Higgs phenomenology provides a sensitive and potentially crucial tool to constrain effective gauge interactions of sterile neutrinos, not yet probed by current experiments. In parallel, this motivates a range of new Higgs decay channels with clean signatures as candidates for the next LHC runs, including h → γ + p miss T and h → γ γ + p miss T .

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Englert, Dr Christoph
Authors: Butterworth, J. M., Chala, M., Englert, C., Spannowsky, M., and Titov, A.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:2470-0010
ISSN (Online):2470-0029
Copyright Holders:Copyright © 2019 The American Physical Society
First Published:First published in Physical Review D 100:115019
Publisher Policy:Reproduced under a Creative Commons License
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173809Phenomenology from Lattice QCD and Collider PhysicsChristine DaviesScience and Technology Facilities Council (STFC)ST/P000746/1P&S - Physics & Astronomy