Axion-like particle at the 10 GeV scale: Higgs decays to wide jets and photons

Bogdan A. Dobrescu, Subhojit Roy

If axion-like particles (ALPs) exist, they may have renormalizable couplings only to the Higgs boson ($h^0$) or to fields beyond the Standard Model. An ALP $A_h$ lighter than about…