We present the results of searches for decays of B mesons to final states with a b1 meson and a neutral pion or kaon. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 465×106 BB̄ pairs produced in e+e- annihilation. The results for the branching fractions are, in units of 10-6, B(B+→b1+K0)=9.6±1.7±0.9, B(B0→b10K0)=5.1±1.8±0.5 (<7.8), B(B+→b1+π0)=1. 8±0.9±0.2 (<3.3), and B(B0→b10π0)=0.4±0. 8±0.2 (<1.9), with the assumption that B(b1→ωπ)=1. We also measure the charge asymmetry Ach(B+→b1+K0)=-0.03±0.15±0. 02. The first error quoted is statistical, the second systematic, and the upper limits in parentheses indicate the 90% confidence level. © 2008 The American Physical Society.

Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2008). Observation of B+→b1+K0 and search for B-meson decays to b10K0 and b1π0. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 1-8 [10.1103/PhysRevD.78.011104].

Observation of B+→b1+K0 and search for B-meson decays to b10K0 and b1π0

PATRIGNANI, CLAUDIA;
2008

Abstract

We present the results of searches for decays of B mesons to final states with a b1 meson and a neutral pion or kaon. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 465×106 BB̄ pairs produced in e+e- annihilation. The results for the branching fractions are, in units of 10-6, B(B+→b1+K0)=9.6±1.7±0.9, B(B0→b10K0)=5.1±1.8±0.5 (<7.8), B(B+→b1+π0)=1. 8±0.9±0.2 (<3.3), and B(B0→b10π0)=0.4±0. 8±0.2 (<1.9), with the assumption that B(b1→ωπ)=1. We also measure the charge asymmetry Ach(B+→b1+K0)=-0.03±0.15±0. 02. The first error quoted is statistical, the second systematic, and the upper limits in parentheses indicate the 90% confidence level. © 2008 The American Physical Society.
2008
Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2008). Observation of B+→b1+K0 and search for B-meson decays to b10K0 and b1π0. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(1), 1-8 [10.1103/PhysRevD.78.011104].
Aubert, B; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Tico, J. Garra; Grauges, E.; Lopez, L.; Palano...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/548253
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