High scale boundary conditions in models with two Higgs doublets

McDowall, J. and Miller, D. J. (2019) High scale boundary conditions in models with two Higgs doublets. Physical Review D, 100, 015018. (doi: 10.1103/PhysRevD.100.015018)

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We investigate high scale boundary conditions on the quartic Higgs couplings and their β functions in the type-II two Higgs doublet model and the inert doublet model. These conditions are associated with two possible UV physics scenarios: the multiple point principle, in which the potential exhibits a second minimum at M Pl , and asymptotic safety, where the scalar couplings run toward an interacting UV fixed point at high scales. We employ a renormalization group running at two loops and apply theoretical and experimental constraints to their parameter spaces. We find neither model can simultaneously accommodate the multiple point principle while also providing realistic masses for both the Higgs and the top quark. However, we do find regions of parameter space compatible with asymptotic safety.

Item Type:Articles
Additional Information:D. J. M. acknowledges partial support from the Science and Technology Facilities Council Grants No. ST/ L000446/1 and No. ST/P000746/1.
Glasgow Author(s) Enlighten ID:MCDOWALL, JOHN and Miller, Dr David
Authors: McDowall, J., and Miller, D. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN (Online):1550-2368
Copyright Holders:Copyright © 2019 The American Physical Society
First Published:First published in Physical Review D 100:015018
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
729782Phenomenology from Lattice QCD and Collider PhysicsChristine DaviesScience & Technology Facilities Council (STFC)ST/P000746/1S&E P&A - PHYSICS & ASTRONOMY