Speaker
Mr
Mark Williams
(Lancaster University)
Description
Recently, CDF and D0 simultaneously reported the world's first ever observation of the Bs2* meson, a narrow, orbitally-excited state of the Bs meson. I will describe D0's efforts to reconstruct and study this particle in decays to B+K- (B+ -> J/psi K+), and the fitting procedure used to determine the Bs2* mass (5839.6 +- 1.1 +- 0.7 MeV). In addition, the production rate of the Bs2* relative to the B+ is measured for the first time.
These results will be compared with those for the B** mesons (narrow orbitally-excited states of the B0), which were observed and measured for the first time last year at D0.
| Talk, Poster, or Talk & Poster | Talk |
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Author
Mr
Mark Williams
(Lancaster University)
