Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology

Anisha, , Banerjee, U., Chakrabortty, J., Englert, C. and Spannowsky, M. (2021) Extended Higgs boson sectors, effective field theory, and Higgs boson phenomenology. Physical Review D, 103(9), 096009. (doi: 10.1103/PhysRevD.103.096009)

[img] Text
237441.pdf - Published Version
Available under License Creative Commons Attribution.

990kB

Abstract

We consider the phenomenological implications of charged scalar extensions of the SM Higgs sector in addition to EFT couplings of this new state to SM matter. We perform a detailed investigation of modifications of loop-induced decays of the 125 GeV Higgs boson, which receives corrections from the propagating charged scalars alongside one-loop EFT operator insertions and demonstrate that the interplay of H → γ γ and H → Z γ decays can be used to clarify the additional states phenomenology in case a discovery is made in the future. In parallel, EFT interactions of the charged Higgs can lead to a decreased sensitivity to the virtual presence of charged Higgs states, which can significantly weaken the constraints that are naively expected from the precisely measured H → γ γ branching ratio. Again H → Z γ measurements provide complementary sensitivity that can be exploited in the future.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Englert, Professor Christoph
Authors: Anisha, , Banerjee, U., Chakrabortty, J., Englert, C., and Spannowsky, M.
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
Published Online:12 May 2021
Copyright Holders:Copyright © 2021 American Physical Society
First Published:First published in Physical Review D 103(9): 096009
Publisher Policy:Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
306883Research in Particle Physics Theory - Phenomenology from lattice QCD and collider physicsChristine DaviesScience and Technology Facilities Council (STFC)ST/T000945/1P&S - Physics & Astronomy