# Observation of the Decay $B_c^{pm} o J/psi pi^{pm}$ and Measurement of the $B_c^{pm}$ Mass

Abstract : The $B_c^{pm}$ meson is observed through the decay $B_c^{pm} o J/psi i^{pm}$, in data corresponding to an integrated luminosity of 2.4 fb$^{-1}$ recorded by the CDF II detector at the Fermilab Tevatron. A signal of $108pm15$ candidates is observed, with a significance that exceeds $8 sigma$. The mass of the $B_c^{pm}$ meson is measured to be 6275.6 $pm$ 2.9 (stat.) $pm$ 2.5 (syst.) MeV/$c^2$.
Document type :
Journal articles

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Submitted on : Tuesday, December 11, 2007 - 9:21:27 AM
Last modification on : Wednesday, October 14, 2020 - 3:12:22 AM

### Citation

T. Aaltonen, J. Adelman, T. Akimoto, M.G. Albrow, B. Alvarez Gonzalez, et al.. Observation of the Decay $B_c^{pm} o J/psi pi^{pm}$ and Measurement of the $B_c^{pm}$ Mass. Physical Review Letters, American Physical Society, 2008, 100, pp.182002. ⟨10.1103/PhysRevLett.100.182002⟩. ⟨in2p3-00195476⟩

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