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Phys. Rev. Lett. 100, 182002 (2008) [7 pages]

Observation of the Decay Bc±J/ψπ± and Measurement of the Bc± Mass

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T. Aaltonen et al. CDF Collaboration
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Received 11 December 2007; published 8 May 2008

The Bc± meson is observed through the decay Bc±J/ψπ±, in data corresponding to an integrated luminosity of 2.4  fb-1 recorded by the Collider Detector at Fermilab II detector at the Fermilab Tevatron. A signal of 108±15 candidates is observed, with a significance that exceeds 8σ. The mass of the Bc± meson is measured to be 6275.6±2.9(stat)±2.5(syst)  MeV/c2.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.182002
DOI:
10.1103/PhysRevLett.100.182002
PACS:
14.40.Nd, 13.20.He, 13.25.Hw