Polarization, Right-Handed Currents, and CP Violation in B → VV

A detailed analysis of B → VV polarization in QCD factorization reveals that the low longitudinal polarization fractions f_L(ϕK*) ≈ 50% can be accounted for in the SM via a QCD penguin annihilation graph. The ratio of transverse rates Γ_⊥/Γ_|| ≈ provides a sensitive test for new right-handed currents in the four-quark operators, CP violation measurements in B → VV decays can discriminate between new contributions to the dipole and four quark operators.