Flavor constraints for a vector-like quark of Nelson-Barr type
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)093
Abstract: Abstract The Nelson-Barr (NB) mechanism to solve the strong CP problem assumes CP conservation, arranges vanishing $$ \overline{\theta} $$ θ ¯ at tree-level and requires vector-like quarks (VLQs) to transmit the CP breaking to the… read more here.
Keywords: nelson barr; flavor constraints; vector like; type ... See more keywords
Nelson-Barr relaxion
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.035014
Abstract: Cosmological relaxation models in which the relaxion is identified with the QCD axion, generically fail to account for the smallness of the strong C P phase. We present a simple alternative solution to this “relaxion… read more here.
Keywords: barr relaxion; nelson barr; relaxion;