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

Collaboration, D0 and Abazov et al, V. and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Love, Peter and Rakitin, Alexander and Ratoff, Peter and Sopczak, Andre and Williams, Mark (2008) Observation and properties of the orbitally excited B_{s2}* Meson. Physical review letters, 100 (8): 082002. ISSN 1079-7114

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Abstract

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.)] %.