BSM patterns in scalar-sector coupling modifiers

Englert, C. , Naskar, W. and Sutherland, D. (2023) BSM patterns in scalar-sector coupling modifiers. Journal of High Energy Physics, 2023, 158. (doi: 10.1007/JHEP11(2023)158)

Abstract

We consider what multiple Higgs interactions may yet reveal about the scalar sector. We estimate the sensitivity of a Feynman topology-templated analysis of weak boson fusion Higgs pair production at present and future colliders — where the signal is a function of the Higgs coupling modifiers κV, κ2V, and κλ. While measurements are statistically limited at the LHC, they are under general perturbative control at present and future colliders, departures from the SM expectation give rise to a significant future potential for BSM discrimination in κ2V. We explore the landscape of BSM models in the space of deviations in κV, κ2V, and κλ, highlighting models that have measurable order-of-magnitude enhancements in either κ2V or κλ, relative to their deviation in the single Higgs coupling κV.

• Item Type: Articles
• Additional Information: C.E. is supported by the STFC under grants ST/T000945/1, ST/X000605/1, and the Leverhulme Trust under grant RPG-2021-031. C.E. and D.S. acknowledge support from the Institute for Particle Physics Phenomenology Associateship Scheme. W.N. is funded by a University of Glasgow College of Science and Engineering Scholarship.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Naskar, Wrishik and Sutherland, Dr David and Englert, Professor Christoph
• Authors: Englert, C., Naskar, W., and Sutherland, D.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Journal of High Energy Physics
• Publisher: Springer
• ISSN: 1126-6708
• ISSN (Online): 1029-8479
• Copyright Holders: Copyright © 2023, The Author(s)
• First Published: First published in Journal of High Energy Physics 2023:158
• Publisher Policy: Reproduced under a Creative Commons licence