| Abstract |
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We present updated measurements of the branching fractions for B0
meson decays to etaK0, etaeta, etaphi, etaomega, eta'K0, eta'eta',
eta'phi, and eta'omega, and branching fractions and CP-violating
charge asymmetries for B+ decays to etapi+, etaK+, eta'pi+ and
eta'K+. The data represent the full dataset of 467 10^{6} BB 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->eta'K0, we find evidence for three B0 decay modes at
greater than 3.0sigma significance. We find
B(B0\to etaK0) = (1.15^{+0.43}_{-0.38} \pm0.09)x10^{-6},
B(B0\to etaomega) = (0.94^{+0.35}_{-0.30}\pm0.09)x10^{-6}, and
B(B0\to eta'omega) = (1.01^{+0.46}_{-0.38}\pm0.09)x10^{-6},
where the first (second) uncertainty is statistical (systematic). For
the B+\to etaK+ decay mode, we measure the charge asymmetry
A_{ch}(B+\to etaK+) = -0.36 \pm 0.11 \pm 0.03.
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