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2009-03-25

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/131666

Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions

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https://doi.org/10.1103/PhysRevD.79.052011

Abstract

We present a study of the charmless semileptonic B -meson decays B + → ω ℓ + ν and B + → η ℓ + ν . The analysis is based on 3.83 × 10 8 B ¯¯¯ B pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω → π + π − π 0 and the η mesons in the channels η → π + π − π 0 and η → γ γ . We measure the branching fractions B ( B + → ω ℓ + ν ) = ( 1.14 ± 0.16 stat ± 0.08 syst ) × 10 − 4 and B ( B + → η ℓ + ν ) = ( 0.31 ± 0.06 stat ± 0.08 syst ) × 10 − 4 .

Subject

Física de partícules, Experiments

Subject (English)

Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions. Physical Review D. 2009. Vol. 79, num. 5, pags. 052011. ISSN 1550-7998. [consulted: 10 of August of 2026]. Available at: https://hdl.handle.net/2445/131666

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