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dc.contributor.authorBaringer, Philip S.
dc.contributor.authorBean, Alice
dc.contributor.authorChristofek, L.
dc.contributor.authorCoppage, Don
dc.contributor.authorGardner, J.
dc.contributor.authorHebert, C.
dc.contributor.authorHensel, Carsten
dc.contributor.authorJabeen, S.
dc.contributor.authorWilson, Graham Wallace
dc.identifier.citationAbazov, VM; Abbott, B, et al. Measurement of the B-s(0) lifetime in the exclusive decay channel B-s(0)-> J/psi phi. PHYSICAL REVIEW LETTERS. February 2005. 94(4)
dc.description.abstractUsing the exclusive decay B-s(0)-->J/psi(mu(+)mu(-))phi(K+K-), we report the most precise single measurement of the B-s(0) lifetime. The data sample corresponds to an integrated luminosity of approximately 220 pb(-1) collected with the D0 detector at the Fermilab Tevatron Collider in 2002-2004. We reconstruct 337 signal candidates, from which we extract the B-s(0) lifetime, tau(B-s(0))=1.444(-0.090)(+0.098)(stat)+/-0.020(sys) ps. We also report a measurement for the lifetime of the B-0 meson using the exclusive decay B-0-->J/psi(mu(+)mu(-))K-*0(892)(K(+)pi(-)). We reconstruct 1370 signal candidates, obtaining tau(B-0)=1.473(-0.050)(+0.052)(stat)+/-0.023(sys) ps, and the ratio of lifetimes, tau(B-s(0))/tau(B-0)=0.980(-0.071)(+0.076)(stat)+/-0.003(sys).
dc.titleMeasurement of the B-s(0) lifetime in the exclusive decay channel B-s(0)-> J/psi phi

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