Download or read book Measurement of the Lambda0(b) Lifetime in Lambda0(b) ---] J/psi Lambda0 in P Anti-p Collisions at S**1/2 written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a measurement of the [Lambda]{sub b}° lifetime in the exclusive decay [Lambda]{sub b}° → J/[psi][Lambda]° in p{bar p} collisions at √s = 1.96 TeV using an integrated luminosity of 1.0 fb−1 of data collected by the CDF II detector at the Fermilab Tevatron. Using fully reconstructed decays, they measure [tau]([Lambda]{sub b}°) = 1.593{sub -0.078}{sup +0.083}(stat.) ± 0.033(syst.) ps. This is the single most precise measurement of [tau]([Lambda]{sub b}°) and is 3.2 [sigma] higher than the current world average.