Search for charged lepton flavor violation in narrow [Ypsilon] decays
Charged-lepton flavor-violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of 99×106Υ(2S)...
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| Main Authors: | , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
16 April 2010
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| In: |
Physical review letters
Year: 2010, Volume: 104, Issue: 15, Pages: 1-7 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.104.151802 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.104.151802 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.104.151802 
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| Author Notes: | J.P. Lees, A. Adametz, J. Marks, S. Schenk, U. Uwer [und 460 weitere Personen] (BABAR Collaboration) |
| Summary: | Charged-lepton flavor-violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of 99×106Υ(2S) decays and 117×106Υ(3S) decays collected with the BABAR detector. We place upper limits on the branching fractions B(Υ(nS)→e±τ∓) and B(Υ(nS)→μ±τ∓) (n=2,3) at the 10−6 level and use these results to place lower limits of order 1 TeV on the mass scale of charged-lepton flavor-violating effective operators. |
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| Item Description: | Gesehen am 10.03.2023 Im Titel ist "Ypsilon" (bzw. "upsilon") als griechischer Buchstabe dargestellt |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.104.151802 |