ALP production in Lepton Flavour Violating meson, tau and gauge boson decays

Marco Ardu, Lorenzo Calibbi, Marco Fedele +1

In this paper we study axion-like particles (ALPs) with lepton-flavour-violating (LFV) couplings in the mass regime above the muon threshold, $m_a>m_{\mu }$, where the strong bound from…