Measurement of the B+ -> omega l+ nu and B+ -> eta l+ nu Branching Fractions

The BaBar Collaboration; Philip Clark

doi:10.1103/PhysRevD.79.052011

Measurement of the B+ -> omega l+ nu and B+ -> eta l+ nu Branching Fractions

The BaBar Collaboration
, Philip Clark

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present a study of the charmless semileptonic B-meson decays B+ -> omega l+ nu and B+ -> eta l+ nu. The analysis is based on 383 million BBbar pairs recorded at the Upsilon(4S) resonance with the BABAR detector. The omega mesons are reconstructed in the channel omega -> pi+ pi- pi0 and the eta mesons in the channels eta -> pi+ pi- pi0 and eta -> gamma gamma. We measure the branching fractions B(B+ -> omega l+ nu) = (1.14 +- 0.16 (stat) +- 0.08 (syst)) x 10^-4 and B(B+ -> eta l+ nu) = (0.31 +- 0.06 (stat) +- 0.08 (syst)) x 10^-4.

Original language	English
Journal	Physical Review D, particles, fields, gravitation, and cosmology
DOIs	https://doi.org/10.1103/PhysRevD.79.052011
Publication status	Published - 26 Aug 2008

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hep-ex

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10.1103/PhysRevD.79.052011

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title = "Measurement of the B+ -> omega l+ nu and B+ -> eta l+ nu Branching Fractions",

abstract = "We present a study of the charmless semileptonic B-meson decays B+ -> omega l+ nu and B+ -> eta l+ nu. The analysis is based on 383 million BBbar pairs recorded at the Upsilon(4S) resonance with the BABAR detector. The omega mesons are reconstructed in the channel omega -> pi+ pi- pi0 and the eta mesons in the channels eta -> pi+ pi- pi0 and eta -> gamma gamma. We measure the branching fractions B(B+ -> omega l+ nu) = (1.14 +- 0.16 (stat) +- 0.08 (syst)) x 10\textasciicircum{}-4 and B(B+ -> eta l+ nu) = (0.31 +- 0.06 (stat) +- 0.08 (syst)) x 10\textasciicircum{}-4.",

keywords = "hep-ex",

author = "B. Aubert and Stephen Playfer and \{The BaBar Collaboration\} and Philip Clark",

note = "8 pages, 8 postscript figures, Editorial changes for publication in PRD, Published in Phys. Rev. D 79, 052011 (2009)",

year = "2008",

month = aug,

day = "26",

doi = "10.1103/PhysRevD.79.052011",

language = "English",

journal = "Physical Review D, particles, fields, gravitation, and cosmology",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Measurement of the B+ -> omega l+ nu and B+ -> eta l+ nu Branching Fractions

AU - Aubert, B.

AU - Playfer, Stephen

AU - The BaBar Collaboration

AU - Clark, Philip

N1 - 8 pages, 8 postscript figures, Editorial changes for publication in PRD, Published in Phys. Rev. D 79, 052011 (2009)

PY - 2008/8/26

Y1 - 2008/8/26

N2 - We present a study of the charmless semileptonic B-meson decays B+ -> omega l+ nu and B+ -> eta l+ nu. The analysis is based on 383 million BBbar pairs recorded at the Upsilon(4S) resonance with the BABAR detector. The omega mesons are reconstructed in the channel omega -> pi+ pi- pi0 and the eta mesons in the channels eta -> pi+ pi- pi0 and eta -> gamma gamma. We measure the branching fractions B(B+ -> omega l+ nu) = (1.14 +- 0.16 (stat) +- 0.08 (syst)) x 10^-4 and B(B+ -> eta l+ nu) = (0.31 +- 0.06 (stat) +- 0.08 (syst)) x 10^-4.

AB - We present a study of the charmless semileptonic B-meson decays B+ -> omega l+ nu and B+ -> eta l+ nu. The analysis is based on 383 million BBbar pairs recorded at the Upsilon(4S) resonance with the BABAR detector. The omega mesons are reconstructed in the channel omega -> pi+ pi- pi0 and the eta mesons in the channels eta -> pi+ pi- pi0 and eta -> gamma gamma. We measure the branching fractions B(B+ -> omega l+ nu) = (1.14 +- 0.16 (stat) +- 0.08 (syst)) x 10^-4 and B(B+ -> eta l+ nu) = (0.31 +- 0.06 (stat) +- 0.08 (syst)) x 10^-4.

KW - hep-ex

UR - https://www.scopus.com/pages/publications/64849111999

U2 - 10.1103/PhysRevD.79.052011

DO - 10.1103/PhysRevD.79.052011

M3 - Article

JO - Physical Review D, particles, fields, gravitation, and cosmology

JF - Physical Review D, particles, fields, gravitation, and cosmology

ER -

Measurement of the B+ -> omega l+ nu and B+ -> eta l+ nu Branching Fractions

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