Model-independent search for the decay B[superscript +] → l[superscript +]ν[subscript l]γ
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PhysRevD.80.111105.pdf
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Author(s)
Dujmic, Denis
Fisher, Peter H
Henderson, Shawn Wesley
Sciolla, Gabriella
Spitznagel, Michael A
Zhao, M.
Yamamoto, R. K.
Date Issued
July 2009
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Aubert, B., et al. “Model-Independent Search for the Decay B[superscript +] → l[superscript +]ν[subscript l]γ.” Physical Review D, vol. 80, no. 11, Dec. 2009. © 2018 American Physical Society
Version
Final published version
Abstract
We present a search for the radiative leptonic decay B[superscript +]→ℓ
[superscript +]v[subscript ℓ]γ, where ℓ=e, μ, using a data sample of 465×10[superscript 6] B][bar over B] pairs collected by the BABAR experiment. In this analysis, we fully reconstruct the hadronic decay of one of the B mesons in Υ(4S)→B[superscript +]B[superscript -] decays, then search for evidence of B+→ℓ[superscript +]ν[subscript ℓ}]γ in the rest of the event. We observe no significant evidence of signal decays and report model-independent branching fraction upper limits of B(B[superscript +]→e[superscript +]ν[subscript e]γ) < 17×10[superscript -6], B(B[superscript +]→μ[superscript +]ν[subscript μ]γ) < 24×10[superscript -6], and B(B[superscript +]→ℓ[superscript +]ν[subscript e]γ) < 15.6×10[superscript -6] (ℓ=e or μ), all at the 90% confidence level. © 2009 The American Physical Society.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.80.111105
