Multiphase critical Higgs boson at colliders

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Huitu , K , Kannike , K , Koivunen , N , Marzola , L , Mondal , S & Raidal , M 2022 , ' Multiphase critical Higgs boson at colliders ' , Physical Review D , vol. 105 , no. 9 , 095036 .

Title: Multiphase critical Higgs boson at colliders
Author: Huitu, Katri; Kannike, Kristjan; Koivunen, Niko; Marzola, Luca; Mondal, Subhadeep; Raidal, Martti
Contributor organization: Helsinki Institute of Physics
Department of Physics
Date: 2022-05-25
Language: eng
Number of pages: 9
Belongs to series: Physical Review D
ISSN: 2470-0010
Abstract: The recently proposed multiphase criticality principle in Coleman-Weinberg models can provide a new explanation for the hierarchy between the electroweak and new physics scales. When applied to the Standard Model, a Higgs boson as light as the pseudo-Goldstone boson of broken-scale invariance occurs. The suppressed mixing between the two light fields still carries information about the large scale of symmetry breaking, albeit up to logarithmic corrections. In this work we probe this scenario with the present LHC data and assess the impact of future lepton and hadron colliders. Our results show that the multiphase criticality can easily explain the apparent absence of new physics at the energy scales tested in current experiments.
Subject: 114 Physical sciences
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion

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