Probing Lepton Flavor Violation in Meson Decays with LHC Data
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| Format: | Preprint |
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2023
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| author | Descotes-Genon, Sébastien Faroughy, Darius A. Plakias, Ioannis Sumensari, Olcyr |
| author_facet | Descotes-Genon, Sébastien Faroughy, Darius A. Plakias, Ioannis Sumensari, Olcyr |
| contents | In this letter, we use LHC data from the Drell-Yan processes $pp\to\ell_i\ell_j$ (with $i\neq j$) to derive model-independent upper limits on lepton-flavor-violating meson decays. Our analysis is based on an Effective Field Theory (EFT) approach and it does not require a specific assumption regarding the basis of effective operators. We find that current LHC data (140~$\mathrm{fb}^{-1}$) already provides competitive limits on $B(B\to πe τ)$ and $B(B\to πμτ)$ with respect to the ones obtained through experimental searches at the $B$-factories. Moreover, we derive upper limits on several decays that have not been searched for experimentally yet, such as $D^0\to eτ$ in the charm sector, and various semileptonic decays such as $B\to ρμτ$, $B_s\to K μτ$ and $B_s\toϕμτ$. Lastly, we discuss the validity of the EFT description of LHC data and the impact of loop corrections in our analysis. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2303_07521 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Probing Lepton Flavor Violation in Meson Decays with LHC Data Descotes-Genon, Sébastien Faroughy, Darius A. Plakias, Ioannis Sumensari, Olcyr High Energy Physics - Phenomenology High Energy Physics - Experiment In this letter, we use LHC data from the Drell-Yan processes $pp\to\ell_i\ell_j$ (with $i\neq j$) to derive model-independent upper limits on lepton-flavor-violating meson decays. Our analysis is based on an Effective Field Theory (EFT) approach and it does not require a specific assumption regarding the basis of effective operators. We find that current LHC data (140~$\mathrm{fb}^{-1}$) already provides competitive limits on $B(B\to πe τ)$ and $B(B\to πμτ)$ with respect to the ones obtained through experimental searches at the $B$-factories. Moreover, we derive upper limits on several decays that have not been searched for experimentally yet, such as $D^0\to eτ$ in the charm sector, and various semileptonic decays such as $B\to ρμτ$, $B_s\to K μτ$ and $B_s\toϕμτ$. Lastly, we discuss the validity of the EFT description of LHC data and the impact of loop corrections in our analysis. |
| title | Probing Lepton Flavor Violation in Meson Decays with LHC Data |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2303.07521 |