(2009) Search for the rare leptonic decays B+ -> l(+) nu(l) (l = e, mu). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.79 (No.9). article no. 091101. ISSN 1550-7998

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Abstract

We have performed a search for the rare leptonic decays B+ -> l(+) nu(l)(l = e, mu), using data collected at the Upsilon(4S) resonance by the BABAR detector at the PEP-II storage ring. In a sample of 468 x 10(6) B (B) over bar pairs we find no evidence for a signal and set an upper limit on the branching fractions B(B+ -> mu(+)nu(mu)) < 1.0 x 10(-6) and B(B+ -> e(+) nu(e)) < 1.9 x 10(-6) at the 90% confidence level, using a Bayesian approach.

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	May 2009
Volume:	Vol.79
Number:	No.9
Number of Pages:	9
Page Range:	article no. 091101
Identification Number:	10.1103/PhysRevD.79.091101
Status:	Peer Reviewed
Publication Status:	Published
Funder:	DOE, National Science Foundation (U.S.) (NSF), Natural Sciences and Engineering Research Council of Canada (NSERC), CEA, Centre national de la recherche scientifique-IN2P3 (France) (CNRS), BMBF, Deutsche Forschungsgemeinschaft (DFG) , Istituto nazionale di fisica nucleare (INFN), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), Science and Technology Facilities Council (Great Britain) (STFC), Marie Curie EIF (European Union), A. P. Sloan Foundation
URI:	http://wrap.warwick.ac.uk/id/eprint/27779

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