Theoretical predictions for $b\to s μ^+ μ^-$ decays
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866929315262758912 |
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| author | Gubernari, Nico |
| author_facet | Gubernari, Nico |
| contents | I review the state of the art of the theoretical calculations for decays mediated by $b\to s \ell^+ \ell^-$ transitions, for $\ell=e,μ$. I focus on the predictions of observables in $B\to K μ^+μ^-$, $B\to K^* μ^+μ^-$, and $B_s\to ϕμ^+μ^-$ decays, as many of these predictions are in tension with the corresponding experimental measurements. I also briefly discuss the $Λ_b\to Λμ^+μ^-$ decay and present a new calculation for this channel. Special emphasis is placed on the non-local contributions, as they are the largest systematic uncertainties in these decays. The current theoretical calculations for $b\to s μ^+ μ^-$ decays are not able to explain the tensions with the experimental measurements. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2404_10043 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Theoretical predictions for $b\to s μ^+ μ^-$ decays Gubernari, Nico High Energy Physics - Phenomenology High Energy Physics - Experiment I review the state of the art of the theoretical calculations for decays mediated by $b\to s \ell^+ \ell^-$ transitions, for $\ell=e,μ$. I focus on the predictions of observables in $B\to K μ^+μ^-$, $B\to K^* μ^+μ^-$, and $B_s\to ϕμ^+μ^-$ decays, as many of these predictions are in tension with the corresponding experimental measurements. I also briefly discuss the $Λ_b\to Λμ^+μ^-$ decay and present a new calculation for this channel. Special emphasis is placed on the non-local contributions, as they are the largest systematic uncertainties in these decays. The current theoretical calculations for $b\to s μ^+ μ^-$ decays are not able to explain the tensions with the experimental measurements. |
| title | Theoretical predictions for $b\to s μ^+ μ^-$ decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2404.10043 |