Measurements of branching fractions and CP asymmetries and studies of angular distributions for B→ÏÏK decays

We present branching fraction and CP asymmetry measurements as well as angular studies of B → ϕϕK decays using 464×10^6 BB events collected by the BABAR experiment. The branching fractions are measured in the ϕϕ invariant mass range below the η_c resonance (m_(ϕϕ)<2.85   GeV). We find B(B^+ → ϕϕK^+)=(5.6±0.5±0.3)×10^(-6) and B(B^0 → ϕϕK^0)=(4.5±0.8±0.3)×10^(-6), where the first uncertainty is statistical and the second systematic. The measured direct CP asymmetries for the B^± decays are A_(CP) = -0.10±0.08±0.02 below the η_c threshold (m_(ϕϕ)<2.85   GeV) and A_(CP) =0.09±0.10±0.02 in the η_c resonance region (m_ϕϕ in [2.94, 3.02] GeV). Angular distributions are consistent with J^P = 0^- in the η_c resonance region and favor J^P = 0^+ below the η_c resonance.