A strong electroweak phase transition from the inflaton field
Tenkanen, T., Tuominen, K., & Vaskonen, V. (2016). A strong electroweak phase transition from the inflaton field. Journal of Cosmology and Astroparticle Physics, 2016(9), Article 037. https://doi.org/10.1088/1475-7516/2016/09/037
Published inJournal of Cosmology and Astroparticle Physics
© The Author(s) 2016. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Funded by SCOAP3.
We study a singlet scalar extension of the Standard Model. The singlet scalar is coupled non-minimally to gravity and assumed to drive inflation, and also couple sufficiently strongly with the SM Higgs field in order to provide for a strong first order electroweak phase transition. Requiring the model to describe inflation successfully, be compatible with the LHC data, and yield a strong first order electroweak phase transition, we identify the regions of the parameter space where the model is viable. We also include a singlet fermion with scalar coupling to the singlet scalar to probe the sensitivity of the constraints on additional degrees of freedom and their couplings in the singlet sector. We also comment on the general feasibility of these fields to act as dark matter.
PublisherInstitute of Physics Publishing Ltd.; Scuola Internazionale Superiore di Studi Avanzati (SISSA)
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Except where otherwise noted, this item's license is described as © The Author(s) 2016. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Funded by SCOAP3.
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