Probing lepton flavor violation in meson decays with LHC data
Abstract In this letter, we use LHC data from the Drell–Yan processes $$pp\rightarrow \ell _i\ell _j$$ p p → ℓ i ℓ j (with $$i\ne j$$ i ≠ 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 doe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-08-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11860-w |
| _version_ | 1797682599197409280 |
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| author | S. Descotes-Genon D. A. Faroughy I. Plakias O. Sumensari |
| author_facet | S. Descotes-Genon D. A. Faroughy I. Plakias O. Sumensari |
| author_sort | S. Descotes-Genon |
| collection | DOAJ |
| description | Abstract In this letter, we use LHC data from the Drell–Yan processes $$pp\rightarrow \ell _i\ell _j$$ p p → ℓ i ℓ j (with $$i\ne j$$ i ≠ 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 $$\textrm{fb}^{-1}$$ fb - 1 ) already provides competitive limits on $${\mathcal {B}}(B\rightarrow \pi e \tau )$$ B ( B → π e τ ) and $${\mathcal {B}}(B\rightarrow \pi \mu \tau )$$ B ( B → π μ τ ) 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 $$D^0\rightarrow e\tau $$ D 0 → e τ in the charm sector, and various semileptonic decays such as $$B\rightarrow \rho \mu \tau $$ B → ρ μ τ , $$B_s\rightarrow K \mu \tau $$ B s → K μ τ and $$B_s\rightarrow \phi \mu \tau $$ B s → ϕ μ τ . Lastly, we discuss the validity of the EFT description of LHC data and the impact of loop corrections in our analysis. |
| first_indexed | 2024-03-12T00:02:07Z |
| format | Article |
| id | doaj.art-6330bd8e5cd940cbbcc889358c1e2376 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-12T00:02:07Z |
| publishDate | 2023-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-6330bd8e5cd940cbbcc889358c1e23762023-09-17T11:25:20ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-08-0183811210.1140/epjc/s10052-023-11860-wProbing lepton flavor violation in meson decays with LHC dataS. Descotes-Genon0D. A. Faroughy1I. Plakias2O. Sumensari3Université Paris-Saclay, CNRS/IN2P3, IJCLabNHETC, Department of Physics and Astronomy, Rutgers UniversityUniversité Paris-Saclay, CNRS/IN2P3, IJCLabUniversité Paris-Saclay, CNRS/IN2P3, IJCLabAbstract In this letter, we use LHC data from the Drell–Yan processes $$pp\rightarrow \ell _i\ell _j$$ p p → ℓ i ℓ j (with $$i\ne j$$ i ≠ 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 $$\textrm{fb}^{-1}$$ fb - 1 ) already provides competitive limits on $${\mathcal {B}}(B\rightarrow \pi e \tau )$$ B ( B → π e τ ) and $${\mathcal {B}}(B\rightarrow \pi \mu \tau )$$ B ( B → π μ τ ) 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 $$D^0\rightarrow e\tau $$ D 0 → e τ in the charm sector, and various semileptonic decays such as $$B\rightarrow \rho \mu \tau $$ B → ρ μ τ , $$B_s\rightarrow K \mu \tau $$ B s → K μ τ and $$B_s\rightarrow \phi \mu \tau $$ B s → ϕ μ τ . Lastly, we discuss the validity of the EFT description of LHC data and the impact of loop corrections in our analysis.https://doi.org/10.1140/epjc/s10052-023-11860-w |
| spellingShingle | S. Descotes-Genon D. A. Faroughy I. Plakias O. Sumensari Probing lepton flavor violation in meson decays with LHC data European Physical Journal C: Particles and Fields |
| title | Probing lepton flavor violation in meson decays with LHC data |
| title_full | Probing lepton flavor violation in meson decays with LHC data |
| title_fullStr | Probing lepton flavor violation in meson decays with LHC data |
| title_full_unstemmed | Probing lepton flavor violation in meson decays with LHC data |
| title_short | Probing lepton flavor violation in meson decays with LHC data |
| title_sort | probing lepton flavor violation in meson decays with lhc data |
| url | https://doi.org/10.1140/epjc/s10052-023-11860-w |
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