Observation of the Decay $B_c^{\pm} \to J/ψπ^{\pm}$ and Measurement of the $B_c^{\pm}$ Mass

Details Observation of the Decay $B_c^{\pm} \to J/ψπ^{\pm}$ and Measurement of the $B_c^{\pm}$ Mass Observation of the Decay $B_c^{\pm} \to J/ψπ^{\pm}$ and Measurement of the $B_c^{\pm}$ Mass

2007-12-10

arxiv.org/abs/0712.1506v1

Phys.Rev.Lett.100:182002,2008

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1103/PhysRevLett.100.182002

The $B_c^{\pm}$ meson is observed through the decay $B_c^{\pm} \to J/\psi \pi^{\pm}$, 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 $108\pm15$ 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/$c^2$.

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