Observation of the $B_c$ Meson in the Exclusive Decay $B_c o J/psi pi$
Abazov, V. M. and others
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Abstract
A fully reconstructed Bc --> Jpsi Pi signal is observed with the D0 detector at the Fermilab Tevatron p-pbar collider. Using 1.3 inverse femtobarns of integrated luminosity, the signal is extracted with a significance more than five standard deviations above background. The measured Bc meson mass is 6300 (_s16-) 14 (stat) (_s16-) 5 (sys) MeV/cc
