Research Papers in Physics and Astronomy


Date of this Version

February 2008


Published by American Physical Society. Phys. Rev. Lett. 100, 082002 (2008). Copyright © 2008 American Physical Society. Permission to use.


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/c2, and its production rate relative to the B+ meson is measured to be [1.15 ± 0.23(stat) ± 0.13(syst)]%.

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