Reheating with a composite Higgs boson

Djuna Croon, Verónica Sanz, and Ewan R. M. Tarrant
Phys. Rev. D 94, 045010 – Published 19 August 2016

Abstract

The flatness of the inflaton potential and lightness of the Higgs boson could have the common origin of the breaking of a global symmetry. This scenario provides a unified framework of Goldstone inflation and composite Higgs models, where the inflaton and the Higgs particle both have a pseudo-Goldstone boson nature. The inflaton reheats the Universe via decays to the Higgs and subsequent secondzary production of other SM particles via the top and massive vector bosons. We find that inflationary predictions and perturbative reheating conditions are consistent with cosmic microwave background data for sub-Planckian values of the fields, as well as opening up the possibility of inflation at the TeV scale. We explore this exciting possibility, leading to an interplay between collider data cosmological constraints.

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  • Received 28 October 2015

DOI:https://doi.org/10.1103/PhysRevD.94.045010

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Djuna Croon, Verónica Sanz, and Ewan R. M. Tarrant

  • Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, UK

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Issue

Vol. 94, Iss. 4 — 15 August 2016

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