Author(s): J. R. Espinosa, C. Grojean, G. Panico, A. Pomarol, O. Pujolàs, and G. Servant
Weak coupling of the Higgs boson to two axionlike states could lead to a naturally small electroweak scale, which could be detected via their astrophysical and cosmological effects.
[Phys. Rev. Lett. 115, 251803] Published Wed Dec 16, 2015