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arXiv · 1506.09217

Cosmological Higgs-Axion Interplay for a Naturally Small Electroweak Scale

J. R. Espinosa·C. Grojean·G. Panico·A. Pomarol·O. Pujolàs·G. Servant
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Abstract

Recently, a new mechanism to generate a naturally small electroweak scale has been proposed. It exploits the coupling of the Higgs to an axion-like field and a long era in the early universe where the axion unchains a dynamical screening of the Higgs mass. We present a new realization of this idea with the new feature that it leaves no signs of new physics up to a rather large scale, 10^9 GeV, except for two very light and weakly coupled axion-like states. One of the scalars can be a viable Dark Matter candidate. Such a cosmological Higgs-axion interplay could be tested with a number of experimental strategies.

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J. R. Espinosa, C. Grojean, G. Panico, A. Pomarol, O. Pujolàs, G. Servant. 2015-06-30. Cosmological Higgs-Axion Interplay for a Naturally Small Electroweak Scale. https://doi.org/10.1103/physrevlett.115.251803

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