Search for the lepton-flavour-violating decays B0 → K*0τ±e∓
A first search at LHCb for the lepton-flavour-violating decays B0 → K*0τ±e∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy of 13 TeV between 2016 and 2018, corresponding to an integrated luminosity o...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
November 26, 2025
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| In: |
Journal of high energy physics
Year: 2025, Heft: 11, Pages: 1-33 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP11(2025)172 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP11(2025)172 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP11(2025)172 |
| Verfasserangaben: | the LHCb collaboration |
| Zusammenfassung: | A first search at LHCb for the lepton-flavour-violating decays B0 → K*0τ±e∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at a centre-of-mass energy of 13 TeV between 2016 and 2018, corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is observed, and upper limits on the branching fractions are determined to be β(B0 → K*0τ −e+) and β(B0 → K*0τ −e+) < 4.9(5.9) x 10 -6 at the 90% (95%) confidence level. These results correspond to the current most stringent upper limits for b → sτl transitions. |
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| Beschreibung: | Im Titel sind "0", "*", "±" und "∓" jeweils hochgestellt The LHCb collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C.E. Cocha Toapaxi, L. Dittmann, S. Esen, F. Glaser, P.A. Günther, X. Han, S. Hausmann-Menzemer, P. Herrero Gascon, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, S.R. Roy, M. Ruiz Diaz, M. Schiller, M. Schmelling, M.D. Tat, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, M. Zavertyaev, Y. Zhao, A. Zhelezov und weitere 1122 Gesehen am 05.05.2026 |
| Beschreibung: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP11(2025)172 |