Inflation and pseudo-Goldstone Higgs boson

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Alanne , T , Sannino , F , Tenkanen , T & Tuominen , K 2017 , ' Inflation and pseudo-Goldstone Higgs boson ' , Physical Review D , vol. 95 , no. 3 , 035004 . https://doi.org/10.1103/PhysRevD.95.035004

Title: Inflation and pseudo-Goldstone Higgs boson
Author: Alanne, Tommi; Sannino, Francesco; Tenkanen, Tommi; Tuominen, Kimmo
Other contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics


Date: 2017-02-06
Language: eng
Number of pages: 6
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.95.035004
URI: http://hdl.handle.net/10138/310139
Abstract: We consider inflation within a model framework where the Higgs boson arises as a pseudo-Goldstone boson associated with the breaking of a global symmetry at a scale significantly larger than the electroweak one. We show that in such a model the scalar self-couplings can be parametrically suppressed and, consequently, the nonminimal couplings to gravity can be of order one or less, while the inflationary predictions of the model remain compatible with the precision cosmological observations. Furthermore, in the model we study, the existence of the electroweak scale is entirely due to the inflaton field. Our model therefore suggests that inflation and low energy particle phenomenology may be more entwined than assumed so far.
Subject: STANDARD MODEL
FIELD
114 Physical sciences
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