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C. and Bianchi, F. and Gamba, D. and Pelliccioni, M. and Bomben, M. and Bosisio, L. and Cartaro, C. and Della-Ricca, G. and Lanceri, L. and Vitale, L. and Azzolini, V. and Lopez-March, N. and Martinez-Vidal, F. and Milanes, D. A. and Oyanguren, A. and Albert, J. and Banerjee, Sw. and Bhuyan, B. and Choi, H. H. F. and Hamano, K. and King, G. J. and Kowalewski, R. and Lewczuk, M. J. and Nugent, I. M. and Roney, J. M. and Sobie, R. J. and Gershon, T. J. and Harrison, P. F. and Ilic, J. and Latham, T. E. and Mohanty, G. B. and Puccio, E. M. T. and Band, H. R. and Chen, X. and Dasu, S. and Flood, K. T. and Pan, Y. and Prepost, R. and Vuosalo, C. O. and Wu, S. L. (2009) Search for the rare leptonic decays B^+ → l^+nu_l (l=e,µ). Physical Review D, 79 (9). Art. No. 091101. ISSN 0556-2821 http://resolver.caltech.edu/CaltechAUTHORS:20091112-091652640
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We have performed a search for the rare leptonic decays B^+ → ℓ^+v_ℓ(l=e,µ), using data collected at the Y(4S) resonance by the BABAR detector at the PEP-II storage ring. In a sample of 468×10^6 BB pairs we find no evidence for a signal and set an upper limit on the branching fractions B(B^+ → µ^+v_µ)<1.0×10^(-6) and B(B^+ → e^+v_e)<1.9×10^(-6) at the 90% confidence level, using a Bayesian approach.
|Additional Information:||© 2009 The American Physical Society. Received 8 April 2009; published 28 May 2009. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.|
|Classification Code:||PACS: 13.20.-v; 13.25.Hw|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||25 Nov 2009 18:32|
|Last Modified:||26 Dec 2012 11:33|
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