  Axion-like particles (ALPs) are good candidates for mediators to the dark
sector. We explore scenarios in which an ALP mediates interactions between dark
matter and electroweak gauge bosons. These models yield testable
electromagnetic signals in astrophysical, cosmological, and terrestrial probes.
We find promising prospects for both indirect detection and accelerator tests,
with interesting parameter space already constrained by current experiments.
Our work provides concrete benchmarks for future tests of the electroweak ALP
portal.
