Measurement of time dependent CP asymmetry parameters in B0 meson decays to ωKS0, ηK0, and π0KS0

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 79, 052003 – Published 13 March 2009

Abstract

We present measurements of the time-dependent CP-violation parameters S and C in the decays B0ωKS0, B0ηK0, reconstructed as ηKS0 and ηKL0, and B0π0KS0. The data sample corresponds to the full BABAR dataset of 467×106 BB¯ pairs produced at the PEP-II asymmetric-energy e+e collider at the Stanford Linear Accelerator Center. The results are SωKS0=0.550.29+0.26±0.02, CωKS0=0.520.20+0.22±0.03, SηK0=0.57±0.08±0.02, CηK0=0.08±0.06±0.02, Sπ0KS0=0.55±0.20±0.03, and Cπ0KS0=0.13±0.13±0.03, where the first errors are statistical and the second systematic. These results are consistent with our previous measurements and the world average of sin2β measured in B0J/ψKS0.

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  • Received 8 September 2008

DOI:https://doi.org/10.1103/PhysRevD.79.052003

©2009 American Physical Society

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Vol. 79, Iss. 5 — 1 March 2009

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