Abstract
Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the nucleon. Using this result, we then derive constraints on the CP-violating η(η′)ππ couplings, which define the two-pion CP-violating decays of the η and η′ mesons. Our results are relevant for the running and planned measurements of rare decays of the η and η′ mesons by the GlueX Collaboration at JLab and the LHCb Collaboration at CERN.
| Original language | English |
|---|---|
| Article number | 036022 |
| Journal | Physical Review D |
| Volume | 95 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 28 Feb 2017 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Gutsche, T., Hiller Blin, A. N., Kovalenko, S., Kuleshov, S., Lyubovitskij, V. E., Vicente Vacas, M. J., & Zhevlakov, A. (2017). CP -violating decays of the pseudoscalars η and η′ and their connection to the electric dipole moment of the neutron. Physical Review D, 95(3), [036022]. https://doi.org/10.1103/PhysRevD.95.036022