Measurement of the B+--> omega l+ nu and B+--> eta l+ nu branching fractions
Author(s)
Zhao, M.; Yamamoto, R. K.; Sciolla, Gabriella; Dujmic, Denis; Fisher, Peter H; Spitznagel, Michael A; Cowan, Ray F; Taylor, Frank E; ... Show more Show less![Thumbnail](/bitstream/handle/1721.1/57481/Aubert-2009-Measurement%20of%20the%20B.pdf.jpg?sequence=4&isAllowed=y)
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Alternative title
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions
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Show full item recordAbstract
We present a study of the charmless semileptonic B-meson decays B+-->omegaℓ+ν and B+-->etaℓ+nu. The analysis is based on 3.83×108 BB[over-bar] pairs recorded at the Υ(4S) resonance with the BABAR detector. The ω mesons are reconstructed in the channel omega-->pi+pi-pi0 and the eta mesons in the channels eta-->pi+pi-pi0 and eta-->γγ. We measure the branching fractions B(B+-->omegaℓ+nu)=(1.14±0.16stat±0.08syst)×10[superscript -4] and B(B+-->etaℓ+nu)=(0.31±0.06stat±0.08syst)×10[superscript -4].
Date issued
2008-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
The BABAR Collaboration et al. “Measurement of the B+--> omega l+ nu and B+--> eta l+ nu branching fractions.” Physical Review D 79.5 (2009): 052011.
©2009 The American Physical Society.
Version: Final published version
ISSN
1550-7998