Abstract

We report on the characteristics of 9 bb pair events produced by a 600 GeV/c π − beam and detected in the hybrid emulsion spectrometer of Fermilab experiment E653. The measured lifetimes for samples of 12 neutral and 6 charged beauty hadrons are τ b0 = 0.81 −0.22−0.02 +0.34+0.08 ps, and τ b± = 3.84 −1.36−0.16 +2.73+0.80 ps

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