We describe searches for B meson decays to the charmless vector-vector final states ωK* and ωρ in 89 × 10<sup>6</sup> BB̄ pairs produced in e<sup>+</sup>e<sup>-</sup> annihilation at √s = 10.58 GeV. We measure the following branching fractions in units of 10 <sup>-6</sup>: B(B<sup>0</sup> → ωK*<sup>0</sup>) = 3.4 <inf>-1.6</inf><sup>+1.8</sup> ± 0.4(<6.0), B(B<sup>+</sup> → ωK*<sup>+</sup>) = 3.5<inf>-2.0</inf><sup>+2.5</sup> ± 0.7(<7.4), B(B<sup>0</sup> → ωρ<sup>0</sup>) = 0.6 <inf>-1.1</inf><sup>+1.3</sup> ± 0.4(<3.3), and B(B<sup>+</sup> → ωρ<sup>+</sup>) = 12.6<inf>-3.3</inf><sup>+3.7</sup> ± 1.6. The first error quoted is statistical, the second systematic, and the upper limits are defined at 90% confidence level. For B<sup>+</sup> → ωρ<sup>+</sup> we also measure the longitudinal spin alignment fraction f<inf>L</inf> = 0.88<inf>-0.15</inf><sup>+0.12</sup> ± 0.03 and charge asymmetry A<inf>ch</inf> = (5 ± 26 ± 2)%. © 2005 The American Physical Society.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Measurements of B meson decays to ωK* and ωρ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 71(3), 1-9 [10.1103/PhysRevD.71.031103].

Measurements of B meson decays to ωK* and ωρ

PATRIGNANI, CLAUDIA;
2005

Abstract

We describe searches for B meson decays to the charmless vector-vector final states ωK* and ωρ in 89 × 106 BB̄ pairs produced in e+e- annihilation at √s = 10.58 GeV. We measure the following branching fractions in units of 10 -6: B(B0 → ωK*0) = 3.4 -1.6+1.8 ± 0.4(<6.0), B(B+ → ωK*+) = 3.5-2.0+2.5 ± 0.7(<7.4), B(B0 → ωρ0) = 0.6 -1.1+1.3 ± 0.4(<3.3), and B(B+ → ωρ+) = 12.6-3.3+3.7 ± 1.6. The first error quoted is statistical, the second systematic, and the upper limits are defined at 90% confidence level. For B+ → ωρ+ we also measure the longitudinal spin alignment fraction fL = 0.88-0.15+0.12 ± 0.03 and charge asymmetry Ach = (5 ± 26 ± 2)%. © 2005 The American Physical Society.
2005
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J., et al. (2005). Measurements of B meson decays to ωK* and ωρ. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 71(3), 1-9 [10.1103/PhysRevD.71.031103].
Aubert, B; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges-Pous, E.; Palano, A.; P...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/552108
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