Search for rare decays of D0 mesons into two muons
A search for the very rare 𝐷0→𝜇+𝜇− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √𝑠=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for 𝐷0 mesons from 𝐷*+→𝐷0𝜋+ decays but is also sensitive to 𝐷0 mesons f...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
July 2023
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| In: |
Physical review letters
Year: 2023, Jahrgang: 131, Heft: 4, Pages: 041804-1-041804-13 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.131.041804 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.131.041804 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.041804 
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| Verfasserangaben: | $hR. Aaij et al.* (LHCb Collaboration) |
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| 245 | 1 | 0 | |a Search for rare decays of D0 mesons into two muons |c $hR. Aaij et al.* (LHCb Collaboration) |
| 246 | 3 | 3 | |a Search for rare decays of D 0 mesons into two muons |
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| 500 | |a *LHCb Collaboration: R. Aaij, S. Bachmann, M. Borsato, R. Caspary, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, A. Zhelezov [und 1055 weitere Personen] | ||
| 500 | |a Im Titel ist "0" hochgestellt | ||
| 500 | |a Veröffentlicht: 26. Juli 2023 | ||
| 500 | |a Gesehen am 12.05.2025 | ||
| 520 | |a A search for the very rare 0→+− decay is performed using data collected by the LHCb experiment in proton-proton collisions at √=7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The search is optimized for 0 mesons from *+→0+ decays but is also sensitive to 0 mesons from other sources. No evidence for an excess of events over the expected background is observed. An upper limit on the branching fraction of this decay is set at ℬ(0→+−)<3.1×10−9 at a 90% C.L. This represents the world’s most stringent limit, constraining models of physics beyond the standard model. | ||
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