Search for the Rare Leptonic Decays B^+ \to l^+ \nu_l (l=e,\mu)

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

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8 pages

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Aubert, B.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X. et al. June 19, 2009.

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

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8 pages

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  • Journal Name: Rapid Communications and PRD; Journal Volume: 79; Journal Issue: 9

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  • Report No.: SLAC-PUB-13556
  • Grant Number: AC02-76SF00515
  • DOI: 10.1103/PhysRevD.79.091101 | External Link
  • Office of Scientific & Technical Information Report Number: 957432
  • Archival Resource Key: ark:/67531/metadc929043

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  • June 19, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 15, 2016, 3:31 p.m.

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Aubert, B.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X. et al. Search for the Rare Leptonic Decays B^+ \to l^+ \nu_l (l=e,\mu), article, June 19, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc929043/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.