Details

Autor(en) / Beteiligte

• Espinosa, J R
• Grojean, C
• Panico, G
• Pomarol, A
• Pujolàs, O
• Servant, G

Titel

Cosmological Higgs-Axion Interplay for a Naturally Small Electroweak Scale

Ist Teil von

• Physical review letters, 2015-12, Vol.115 (25), p.251803-251803, Article 251803

Ort / Verlag

United States

Erscheinungsjahr

2015

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Recently, a new mechanism to generate a naturally small electroweak scale has been proposed. It exploits the coupling of the Higgs boson to an axionlike 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 sign of new physics at the electroweak scale, and up to a rather large scale, 10^{9}  GeV, except for two very light and weakly coupled axionlike 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.