Download or read book Measurement of the B° and B Meson Lifetimes with Fully Reconstructed Hadronic Final States written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The B° and B meson lifetimes have been measured in ee− annihilation data collected in 1999 and 2000 with the BABAR detector at center-of-mass energies near the [Upsilon](4S) resonance. Events are selected in which one B meson is fully reconstructed in a hadronic final state while the second B meson is reconstructed inclusively. A combined fit to the B° and the B+ decay time difference distributions yields [tau]{sub B{sup 0}} = 1.546 ± 0.032 (stat) ± 0.022 (syst) ps, [tau]{sub B{sup +}} = 1.673 ± 0.032 (stat) ± 0.023 (syst) ps and [tau]{sub B{sup +}}/[tau]{sub B{sup 0}} = 1.082 ± 0.026 (stat) ± 0.012 (syst).