High Energy Physics - Phenomenology
[Submitted on 13 Mar 2023 (v1), last revised 21 Feb 2024 (this version, v2)]
Title:Probing Lepton Flavor Violation in Meson Decays with LHC Data
View PDF HTML (experimental)Abstract: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 $B(B\to \pi e \tau)$ and $B(B\to \pi \mu \tau)$ 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 $D^0\to e\tau$ in the charm sector, and various semileptonic decays such as $B\to \rho \mu\tau$, $B_s\to K \mu\tau$ and $B_s\to\phi\mu\tau$. Lastly, we discuss the validity of the EFT description of LHC data and the impact of loop corrections in our analysis.
Submission history
From: Olcyr Sumensari [view email][v1] Mon, 13 Mar 2023 23:17:49 UTC (522 KB)
[v2] Wed, 21 Feb 2024 12:37:57 UTC (211 KB)
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