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Search for the rare leptonic decays B+→l+νl (l=e,μ)

Aubert, B. et al. (2009) Search for the rare leptonic decays B+→l+νl (l=e,μ). Physical Review D, 79 (9). 091101. ISSN 1550-7998

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We have performed a search for the rare leptonic decays B+→ℓ+νℓ(l=e,μ), using data collected at the Υ(4S) resonance by the BABAR detector at the PEP-II storage ring. In a sample of 468×106 BB̅ pairs we find no evidence for a signal and set an upper limit on the branching fractions B(B+→μ+νμ)<1.0×10-6 and B(B+→e+νe)<1.9×10-6 at the 90% confidence level, using a Bayesian approach.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 05 Jan 2012 11:17
Last Modified: 28 Aug 2021 11:13


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