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A search for μ+→e+γ with the first dataset of the MEG II experiment.
In: European Physical Journal C -- Particles & Fields, Jg. 84 (2024-03-01), Heft 3, S. 1-10
Online
academicJournal
Zugriff:
The MEG II experiment, based at the Paul Scherrer Institut in Switzerland, reports the result of a search for the decay μ + → e + γ from data taken in the first physics run in 2021. No excess of events over the expected background is observed, yielding an upper limit on the branching ratio of B (μ + → e + γ) < 7.5 × 10 - 13 (90% CL). The combination of this result and the limit obtained by MEG gives B (μ + → e + γ) < 3.1 × 10 - 13 (90% CL), which is the most stringent limit to date. A ten-fold larger sample of data is being collected during the years 2022–2023, and data-taking will continue in the coming years. [ABSTRACT FROM AUTHOR]
Titel: |
A search for μ+→e+γ with the first dataset of the MEG II experiment.
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Autor/in / Beteiligte Person: | Afanaciev, K. ; Baldini, A. M. ; Ban, S. ; Baranov, V. ; Benmansour, H. ; Biasotti, M. ; Boca, G. ; Cattaneo, P. W. ; Cavoto, G. ; Cei, F. ; Chiappini, M. ; Chiarello, G. ; Corvaglia, A. ; Cuna, F. ; Maso, G. Dal ; De Bari, A. ; De Gerone, M. ; Barusso, L. Ferrari ; Francesconi, M. ; Galli, L. |
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Zeitschrift: | European Physical Journal C -- Particles & Fields, Jg. 84 (2024-03-01), Heft 3, S. 1-10 |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 1434-6044 (print) |
DOI: | 10.1140/epjc/s10052-024-12416-2 |
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