New-physics signatures via CP violation in η (′) → π 0 μ + μ − and η′ → ημ + μ − decays
Abstract In this work we investigate the prospect of observing new-physics signatures via CP violation in η (′) → π 0 μ + μ − and η′ → ημ + μ − decays at the REDTOP experiment. We make use of the SMEFT to parametrise the new-physics CP-violating effects and find that the projected REDTOP statistics...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2022)147 |
| Summary: | Abstract In this work we investigate the prospect of observing new-physics signatures via CP violation in η (′) → π 0 μ + μ − and η′ → ημ + μ − decays at the REDTOP experiment. We make use of the SMEFT to parametrise the new-physics CP-violating effects and find that the projected REDTOP statistics are not competitive with respect to nEDM experiments. This reasserts the η → μ + μ − process as the most promising channel to find CP-violation at this experimental facility. |
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| ISSN: | 1029-8479 |