Snowmass White Paper: Strong CP Beyond Axion Direct Detection
arXiv:2203.07218
Abstract
We sketch recent progress and promising future directions for research connected with the strong CP problem. Topics surveyed include axion dark matter substructure and its gravitational detection; axion model building and the quality problem; experimental tests of ultraviolet solutions; and connections to lattice QCD.
5 pages, contribution to Snowmass 2021