Search for the lepton-flavour violating decays B0→ K∗0µ ±e ∓ and B0 s → φµ±e ∓
A search for the lepton-flavour violating decays B0 → K∗0µ±e∓ and B0s →φµ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9 fb−1. No significant signals are observed and upper limits of B(B0→ K∗0µ+e−) < 5....
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Ramon Llull (URL) |
| Repositorio: | DAU Arxiu Digital de la Universitat Ramon Llull |
| OAI Identifier: | oai:dnet:dau_________::6fcb9b22c9a59e102d7fea4abfba9eff |
| Acceso en línea: | https://hdl.handle.net/20.500.14342/6427 https://doi.org/10.1007/JHEP06(2023)073 |
| Access Level: | acceso abierto |
| Palabra clave: | B Physics Flavour Physics Hadron-Hadron Scattering Rare Decay Decay Processes Experimental Particle Physics Experimental Nuclear Physics Nuclear Physics Particle Physics Gran col·lisionador d'hadrons (França i Suïssa) 51 53 539 |
| Sumario: | A search for the lepton-flavour violating decays B0 → K∗0µ±e∓ and B0s →φµ±e∓ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9 fb−1. No significant signals are observed and upper limits of B(B0→ K∗0µ+e−) < 5.7 × 10−9 (6.9 × 10−9), B(B0→ K∗0µ−e+) < 6.8 × 10−9 (7.9 × 10−9), B(B0→ K∗0µ±e∓) < 10.1 × 10−9 (11.7 × 10−9), B(B0s → φµ±e∓) < 16.0 × 10−9 (19.8 × 10−9) are set at 90% (95%) confidence level. These results constitute the world’s most stringent limits to date, with the limit on the decay B0s → φµ±e∓ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios. |
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