We present a study of the charmless semileptonic B-meson decays B+→ωℓ+ν and B+→ηℓ+ν. The analysis is based on 3.83×108 BB⎯⎯⎯ pairs recorded at the Υ(4S) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω→π+π−π0 and the η mesons in the channels η→π+π−π0 and η→γγ. We measure the branching fractions ℬ(B+→ωℓ+ν)=(1.14±0.16stat±0.08syst)×10−4 and ℬ(B+→ηℓ+ν)=(0.31±0.06stat±0.08syst)×10−4.

Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prencipe, E., et al. (2009). Measurement of the B+ -> omega l(+) v and B+ -> eta l(+) v branching fractions. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79(5), 1-9 [10.1103/PhysRevD.79.052011].

Measurement of the B+ -> omega l(+) v and B+ -> eta l(+) v branching fractions

PATRIGNANI, CLAUDIA;
2009

Abstract

We present a study of the charmless semileptonic B-meson decays B+→ωℓ+ν and B+→ηℓ+ν. The analysis is based on 3.83×108 BB⎯⎯⎯ pairs recorded at the Υ(4S) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω→π+π−π0 and the η mesons in the channels η→π+π−π0 and η→γγ. We measure the branching fractions ℬ(B+→ωℓ+ν)=(1.14±0.16stat±0.08syst)×10−4 and ℬ(B+→ηℓ+ν)=(0.31±0.06stat±0.08syst)×10−4.
2009
Aubert, B., Bona, M., Karyotakis, Y., Lees, J.p., Poireau, V., Prencipe, E., et al. (2009). Measurement of the B+ -> omega l(+) v and B+ -> eta l(+) v branching fractions. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 79(5), 1-9 [10.1103/PhysRevD.79.052011].
Aubert, B; Bona, M; Karyotakis, Y; Lees, Jp; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V; Tico, Jg; Grauges, E; Lopez, L; Palano, A; Pappagallo,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/543545
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