Relating CP-Violating Decays to the Neutron EDM

Thomas Gutsche, Astrid N. Hiller Blin, Sergey Kovalenko, Serguei Kuleshov, Valery E. Lyubovitskij, Manuel J. Vicente Vacas, Alexey Zhevlakov

Research School of High-Energy Physics

Research output: Contribution to journal › Article

Abstract

We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the η(η^′) to the neutron. Using this result, we derive constraints on the CP-violating two-pion decays of the η(η^′) mesons. Our results are relevant for the running and planned GlueX and LHCb measurements of rare meson decays.

Original language	English
Article number	66
Journal	Few-Body Systems
Volume	59
Issue number	4
DOIs	https://doi.org/10.1007/s00601-018-1387-6
Publication status	Published - 1 Jul 2018

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ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Cite this

Gutsche, T., Hiller Blin, A. N., Kovalenko, S., Kuleshov, S., Lyubovitskij, V. E., Vicente Vacas, M. J., & Zhevlakov, A. (2018). Relating CP-Violating Decays to the Neutron EDM. Few-Body Systems, 59(4), [66]. https://doi.org/10.1007/s00601-018-1387-6

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AU - Hiller Blin, Astrid N.

AU - Kovalenko, Sergey

AU - Kuleshov, Serguei

AU - Lyubovitskij, Valery E.

AU - Vicente Vacas, Manuel J.

AU - Zhevlakov, Alexey

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AB - We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the neutron. Using this result, we derive constraints on the CP-violating two-pion decays of the η(η′) mesons. Our results are relevant for the running and planned GlueX and LHCb measurements of rare meson decays.

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10.1007/s00601-018-1387-6