We present branching fraction measurements for the decays B0→ρ0K*0, B0→f0K*0, and B0→ρ−K*+, where K∗ is an S-wave (Kπ)∗0 or a K∗(892) meson; we also measure B0→f0K∗2(1430)0. For the K∗(892) channels, we report measurements of longitudinal polarization fractions (for ρ final states) and direct CP violation asymmetries. These results are obtained from a sample of (471.0±2.8)×106 BB⎯⎯⎯ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Accelerator Laboratory. We observe ρ0K∗(892)0, ρ0(Kπ)*00, f0K∗(892)0, and ρ−K∗(892)+ with greater than 5σ significance, including systematics. We report first evidence for f0(Kπ)*00 and f0K∗2(1430)0, and place an upper limit on ρ−(Kπ)*+0. Our results in the K∗(892) channels are consistent with no direct CP violation.

Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., et al. (2012). B-0 meson decays to rho K-0*(0), f(0)K*(0), and rho K-*(+), including higher K* resonances. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(7), 1-16 [10.1103/PhysRevD.85.072005].

B-0 meson decays to rho K-0*(0), f(0)K*(0), and rho K-*(+), including higher K* resonances

PATRIGNANI, CLAUDIA;
2012

Abstract

We present branching fraction measurements for the decays B0→ρ0K*0, B0→f0K*0, and B0→ρ−K*+, where K∗ is an S-wave (Kπ)∗0 or a K∗(892) meson; we also measure B0→f0K∗2(1430)0. For the K∗(892) channels, we report measurements of longitudinal polarization fractions (for ρ final states) and direct CP violation asymmetries. These results are obtained from a sample of (471.0±2.8)×106 BB⎯⎯⎯ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at the SLAC National Accelerator Laboratory. We observe ρ0K∗(892)0, ρ0(Kπ)*00, f0K∗(892)0, and ρ−K∗(892)+ with greater than 5σ significance, including systematics. We report first evidence for f0(Kπ)*00 and f0K∗2(1430)0, and place an upper limit on ρ−(Kπ)*+0. Our results in the K∗(892) channels are consistent with no direct CP violation.
2012
Lees, J.P., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., et al. (2012). B-0 meson decays to rho K-0*(0), f(0)K*(0), and rho K-*(+), including higher K* resonances. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(7), 1-16 [10.1103/PhysRevD.85.072005].
Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/537423
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