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Test of lepton universality in Υ(1S) decays at BABAR

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The ratio Rτμ(Υ(1S))=ΓΥ(1S)→τ+τ−/ΓΥ(1S)→μ+μ− is measured using a sample of (121.8±1.2)×106Υ(3S) events recorded by the BABAR detector. This measurement is intended as a test of lepton universality and as a search for a possible light pseudoscalar Higgs boson. In the standard model (SM) this ratio is...

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Main Authors: Amo Sanchez, Pablo del (Author) , Adametz, Aleksandra (Author) , Marks, Jörg (Author) , Schenk, Sebastian (Author) , Uwer, Ulrich (Author) , Hartmann, Thomas (Author) , Leddig, Torsten (Author) , Schröder, Henning (Author) , Waldi, Roland (Author)
Corporate Author: BABAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 14 May 2010
In: Physical review letters
Year: 2010, Volume: 104, Issue: 19, Pages: 1-7
ISSN:1079-7114
DOI:10.1103/PhysRevLett.104.191801
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.104.191801
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.104.191801
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Author Notes:BABAR Collaboration
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Test of lepton universality in Υ(1S) decays at BABAR by Amo Sanchez, Pablo del (Author) , Adametz, Aleksandra (Author) , Marks, Jörg (Author) , Schenk, Sebastian (Author) , Uwer, Ulrich (Author) , Hartmann, Thomas (Author) , Leddig, Torsten (Author) , Schröder, Henning (Author) , Waldi, Roland (Author) ,


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