CP violation in η muonic decays

Sanchez-Puertas, Pablo ( Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology, Universitat Autónoma de Barcelona, E-08193, Bellaterra (Barcelona), Spain) (0000 0004 1937 116X, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Charles University in Prague, V Holešovičkách 2, 18000, Praha 8, Czech Republic)

04 January 2019

Abstract: In this study, we investigate the imprints of CP violation in certain η muonic decays that could arise within the Standard Model effective field theory. In particular, we study the sensitivities that could be reached at REDTOP, a proposed η facility. After estimating the bounds that the neutron EDM places, we find still viable to discover signals of CP violation measuring the polarization of muons in η → μ + μ − decays, with a single effective operator as its plausible source.


Published in: JHEP 1901 (2019) 031
Published by: Springer/SISSA
DOI: 10.1007/JHEP01(2019)031
arXiv: 1810.13228
License: CC-BY-4.0



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