Measurement of theΛb0Lifetime UsingΛb0→Λc+ℓ−ν¯
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The lifetime of Λ0b is measured using the semileptonic decay Λ0b → Λ+cℓ−ν−, where the Λ+c is reconstructed through its decay Λ+c → pK− π+. The data were collected by the CDF detector at the Tevatron Collider during 1992–1995 and correspond to an integrated luminosity of 110pb−1 of pp collisions at √s = 1.8 TeV. From a fit to the decay length distribution of the Λc-lepton system from 197 ± 25 signal events, the lifetime of Λ0b is measured to be 1.32 ± 0.15 ± 0.07 ps. © 1996 The American Physical Society.
author list (cited authors)
Abe, F., Akimoto, H., Akopian, A., Albrow, M. G., Amendolia, S. R., Amidei, D., ... Deninno, M.