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http://hdl.handle.net/2445/131664
Title: | Search for the rare leptonic decays B+→l+νl (l=e,μ) |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 28-May-2009 |
Publisher: | American Physical Society |
Abstract: | We have performed a search for the rare leptonic decays B + → ℓ + ν ℓ ( l = e , μ ), using data collected at the Υ ( 4 S ) resonance by the BABAR detector at the PEP-II storage ring. In a sample of 468 × 10 6 B ¯¯¯ B pairs we find no evidence for a signal and set an upper limit on the branching fractions B ( B + → μ + ν μ ) < 1.0 × 10 − 6 and B ( B + → e + ν e ) < 1.9 × 10 − 6 at the 90% confidence level, using a Bayesian approach. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.79.091101 |
It is part of: | Physical Review D, 2009, vol. 79, num. 9, p. 091101 |
URI: | http://hdl.handle.net/2445/131664 |
Related resource: | https://doi.org/10.1103/PhysRevD.79.091101 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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577752.pdf | 318.78 kB | Adobe PDF | View/Open |
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