Measurement of Branching Fraction and CP-Violating Asymmetry for B->omegaKs

TL;DR

This paper reports a preliminary measurement of the branching fraction and CP-violating parameters S and C for the decay B->omegaKs using data from 232 million BBbar pairs, providing insights into CP violation in B meson decays.

Contribution

First measurement of B->omegaKs branching fraction and CP asymmetries using a large data sample at the Upsilon(4S) resonance.

Findings

Branching fraction B(omegaK0) = (5.9 ± 1.0 ± 0.4) x 10^-6

CP-violating parameter S = 0.50 +0.34 -0.38 ± 0.02

CP-violating parameter C = -0.56 +0.29 -0.27 ± 0.03

Abstract

We present a preliminary measurement of the branching fraction and CP-violating parameters S and C for the decay B->omegaKs. The data sample corresponds to 232x10^6 BBbar pairs produced from e+e- annihilation at the Upsilon(4S) resonance. We measure B(omegaK0)=(5.9+/-1.0+/-0.4)x10^-6, S=0.50+0.34-0.38+/-0.02 and C=-0.56+0.29-0.27+/-0.03.