Observation of the B-c meson in the exclusive decay B-c -> J/psi pi
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Amer Physical Soc
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Abstract
A fully reconstructed B-c -> J/psi pi signal is observed with the D0 detector at the Fermilab Tevatron p (p) over bar collider using 1.3 fb(-1) of integrated luminosity. The signal consists of 54 +/- 12 candidates with a significance that exceeds 5 standard deviations, and confirms earlier observations of this decay. The measured mass of the B-c meson is 6300 +/- 14(stat)+/- 5(syst) MeV/c(2).
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English
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Physical Review Letters. College Pk: Amer Physical Soc, v. 101, n. 1, 6 p., 2008.
