Revised constraints and Belle II sensitivity for visible and invisible axion-like particles
Revised constraints and Belle II sensitivity for visible and invisible axion-like particles
A bstract Light pseudoscalars interacting pre-dominantly with Standard Model gauge bosons (so-called axion-like particles or ALPs) occur frequently in extensions of the Standard Model. In this work we review and update existing constraints on ALPs in the keV to GeV mass region from colliders, beam dump experiments and astrophysics. We …