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hep-ph2026
Cosmic Birefringence and Axiogenesis
Raymond T. Co, Lawrence J. Hall, Keisuke Harigaya +1
Recent analyses of Planck and ACT CMB data report a hint of isotropic cosmic birefringence (), corresponding to a parity-violating rotation of pol…
hep-ph2025★ 3 cited
(Non-)Perturbative Dynamics of a Light QCD Axion: Dark Matter and the Strong CP Problem
Raymond T. Co, Taegyu Lee, Owen P. Leonard
Considerable theoretical efforts have gone into expanding the reach of the QCD axion beyond its canonical mass--decay-constant relation. The QCD axion model reduces…