Correlations of $C$ and $CP$ violation in $η\to π^0\ell^+\ell^-$ and $η'\to η\ell^+\ell^-$
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arXiv
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866913266944442368 |
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| author | Akdag, Hakan Kubis, Bastian Wirzba, Andreas |
| author_facet | Akdag, Hakan Kubis, Bastian Wirzba, Andreas |
| contents | Based on recent progress in the systematic analysis of $C$ and $CP$ violation in the light-meson sector, we calculate the $C$-odd transition amplitudes $η\toπ^0\ell^+\ell^-$ and $η'\toη\ell^+\ell^-$. Focusing on long-distance contributions driven by the lowest-lying hadronic intermediate states, we work out the correlations between these beyond-the-Standard-Model signals and the Dalitz-plot asymmetries in $η\rightarrow π^0 π^+ π^-$ and $η' \rightarrow ηπ^+ π^- $, using dispersion theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_02533 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Correlations of $C$ and $CP$ violation in $η\to π^0\ell^+\ell^-$ and $η'\to η\ell^+\ell^-$ Akdag, Hakan Kubis, Bastian Wirzba, Andreas High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory Based on recent progress in the systematic analysis of $C$ and $CP$ violation in the light-meson sector, we calculate the $C$-odd transition amplitudes $η\toπ^0\ell^+\ell^-$ and $η'\toη\ell^+\ell^-$. Focusing on long-distance contributions driven by the lowest-lying hadronic intermediate states, we work out the correlations between these beyond-the-Standard-Model signals and the Dalitz-plot asymmetries in $η\rightarrow π^0 π^+ π^-$ and $η' \rightarrow ηπ^+ π^- $, using dispersion theory. |
| title | Correlations of $C$ and $CP$ violation in $η\to π^0\ell^+\ell^-$ and $η'\to η\ell^+\ell^-$ |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2307.02533 |