Author:
Kadota Kenji,Min Ui,Son Minho,Ye Fang
Abstract
Abstract
We consider the cosmological relaxation solution to the electroweak hierarchy problem using the fermion production as a dominant friction force. In our approach, neither super-Planckian field excursions nor a large number of e-folds arise, and scanning over thermal Higgs mass squared is avoided. The produced fermions from the relaxion source through the derivative coupling are SM-singlets, what we call dark fermions, and they can serve as the keV scale warm dark matter candidates.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
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