Rates, Polarizations, and Asymmetries in Charmless Vector-Vector B Decays

With a sample of approximately 89 million B(bar B) pairs collected with the BABAR detector, they measure branching fractions, determine the degree of longitudinal polarization, and search for direct CP violation in the decays B0 → ψK*0 and B+ → ψK*+. They perform a search for other charmless vector-vector B decays involving ρ and K*(892) resonances and observe the decays B+ → ρ0 K*+ and B+ → ρ0ρ+. The branching fractions are measured to be Β(φK*0) = (11.1 -1.2+1.3 ± 1.1) x 10-6, Β(φK*+) = (12.1 -1.9+2.1 ± 1.5) x 10-6, Β(ρ0 K*+) = (7.7-2.0+2.1 ± 1.4) x 10-6, and Β(ρ0 ρ+) = 0.65 ± 0.07 ± 0.04 and ΛL/Λ(φK*+) = 0.46 ± 0.12 ± 0.05. They measure the charge asymmetries: ΑCP(φK*0) = +0.04 ± 0.12 ± 0.02 and ΑCP(φK*+) = +0.16 ± 0.17 ± 0.04