Faithin Omaha eBook Collection

Download or read book Measurement of the Lifetime of the B[sup O][sub S] Meson from D[sup Minus][sub S][ell][sup Plus] Correlations written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The lifetime of the B[sub s][sup 0] meson is measured using the semileptonic decay B[sub s][sup 0][r-arrow] D[sub s][sup[minus]]l[sup[plus]][nu]X. The data sample consists of approximately 110 pb[sup[minus]1] of p[ovr p] collisions at[radical]s= 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider. There are 254[plus-minus]21 D[sub s][sup[minus]]l[sup[plus]] signal events where the D[sub s][sup[plus]] is reconstructed through its decay mode D[sub s][sup[minus]][r-arrow][phi][pi][sup[minus]], [phi][r-arrow] K[sup[plus]]K[sup[minus]]. Using these events, the B[sub s][sup 0] meson lifetime is determined to be[tau](B[sub s][sup 0])[equals] 1.37[sup[plus]0.14][sub[minus]0.12](stat.)[plus-minus]0.04(syst.) ps. The B[sub s][sup 0] meson proper decay length distribution has been examined for a lifetime difference between the two CP eigenstates of the B[sub s][sup 0] meson, B[sub s][sup H] and B[sub s][sup L]. 12 refs., 3 figs., 1 tab.