Measurements of CP-Violating Asymmetries and Branching Fractions in B Decays to omegaK and omegapi
B. Aubert, et al. (BABAR Collaboration)
TL;DR
This paper reports measurements of CP-violating asymmetries and branching fractions in B meson decays to omegaK and omegapi, using data from 232 million BBbar pairs at the Upsilon(4S) resonance.
Contribution
It provides the first detailed measurements of CP asymmetries and branching fractions for these specific decay modes.
Findings
Measured CP-violation parameters for omegaKs decay.
Determined branching fractions for omegaPi+, omegaK+, and omegaK0 decays.
Found charge asymmetries consistent with zero within uncertainties.
Abstract
We present measurements of CP-violating asymmetries and branching fractions for the decays omegapi+, omegaK+, and omegaK0. The data sample corresponds to 232 million BBbar pairs produced by e+e- annihilation at the Upsilon(4S) resonance. For the decay omegaKs, we measure the time-dependent CP-violation parameters S=0.51+0.35-0.39+/-0.02, and C=-0.55+0.28-0.26+/-0.03. We also measure the branching fractions, in units of 10^-6, B(omegapi+)=6.1+/-0.7+/-0.4, B(omegaK+)=6.1+/-0.6+/-0.4, and B(omegaK0)=6.2+/-1.0+/-0.4, and charge asymmetries Ach(omegapi+)=-0.01+/-0.10+/-0.01 and Ach(omegaK+)=0.05+/-0.09+/-0.01.
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