Some cosmological implications of hidden sectors

J. R. Espinosa; T. Konstandin; J. M. No; M. Quirós

doi:10.1103/PhysRevD.78.123528

Some cosmological implications of hidden sectors

J. R. Espinosa, T. Konstandin, J. M. No, M. Quirós

Department of Physics

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102 Citations (Scopus)

Abstract

We discuss some cosmological implications of extensions of the standard model with hidden-sector scalars coupled to the Higgs boson. We put special emphasis on the conformal case, in which the electroweak symmetry is broken radiatively with a Higgs mass above the experimental limit. Our refined analysis of the electroweak phase transition in this kind of models strengthens the prediction of a strongly first-order phase transition as required by electroweak baryogenesis. We further study gravitational wave production and the possibility of low-scale inflation as well as a viable dark matter candidate. © 2008 The American Physical Society.

Original language	English
Article number	123528
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	78
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.78.123528
Publication status	Published - 2 Dec 2008

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AB - We discuss some cosmological implications of extensions of the standard model with hidden-sector scalars coupled to the Higgs boson. We put special emphasis on the conformal case, in which the electroweak symmetry is broken radiatively with a Higgs mass above the experimental limit. Our refined analysis of the electroweak phase transition in this kind of models strengthens the prediction of a strongly first-order phase transition as required by electroweak baryogenesis. We further study gravitational wave production and the possibility of low-scale inflation as well as a viable dark matter candidate. © 2008 The American Physical Society.

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