Search:
Computing and Library Services - delivering an inspiring information environment

B meson decays to charmless meson pairs containing η or η′ mesons

Aubert, B. et al. (2009) B meson decays to charmless meson pairs containing η or η′ mesons. Physical Review D, 80 (11). p. 112002. ISSN 1550-7998

Metadata only available from this repository.

Abstract

We present updated measurements of the branching fractions for B0 meson decays to ηK0, ηη, ηϕ, ηω, η′K0, η′η′, η′ϕ, and η′ω, and branching fractions and CP-violating charge asymmetries for B+ decays to ηπ+, ηK+, η′π+, and η′K+. The data represent the full data set of 467×106 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the SLAC National Accelerator Laboratory. Besides large signals for the four charged B decay modes and for B0→η′K0, we find evidence for three B0 decay modes at greater than 3.0σ significance. We find B(B0→ηK0)=(1.15-0.38+0.43±0.09)×10-6, B(B0→ηω)=(0.94-0.30+0.35±0.09)×10-6, and B(B0→η′ω)=(1.01-0.38+0.46±0.09)×10-6, where the first (second) uncertainty is statistical (systematic). For the B+→ηK+ decay mode, we measure the charge asymmetry Ach(B+→ηK+)=-0.36±0.11±0.03.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Related URLs:
Depositing User: Sharon Beastall
Date Deposited: 05 Jan 2012 10:32
Last Modified: 05 Jan 2012 10:32
URI: http://eprints.hud.ac.uk/id/eprint/12341

Item control for Repository Staff only:

View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©