Observation and properties of the orbitally excited B_{s2}* Meson

We report the direct observation of the excited L=1 state B_{s2}* in fully reconstructed decays to B+K-. The mass of the B_{s2}* meson is measured to be {5839.6 ± 1.1 (stat.) ± 0.7 (syst.) MeV/c^2, and its production rate relative to the B+ meson is measured to be [1.15 ± 0.23 (stat.) ± 0.13 (syst.)] %.