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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.authorHensel, Carsten
dc.contributor.authorJabeen, S.
dc.contributor.authorMoulik, Tania
dc.contributor.authorWilson, Graham Wallace
dc.date.accessioned2007-05-14T18:47:57Z
dc.date.available2007-05-14T18:47:57Z
dc.date.issued2005-10
dc.identifier.citationAbazov, VM; Abbott, B, et al. Measurement of the lifetime difference in the B-s(0) system. PHYSICAL REVIEW LETTERS. October 2005. 95(17)
dc.identifier.urihttp://hdl.handle.net/1808/1582
dc.description.abstractWe present a study of the decay B-s(0)-> J/psi phi. We obtain the CP-odd fraction in the final state at time zero R-perpendicular to = 0.16 +/- 0.10 (stat) +/- 0.02(syst), the average lifetime of the (B-s(0), (B) over bar (0)(s)) system, (tau) over bar (B-s(0)) = 1.39(-0.16)(+0.13)(stat)(-0.02)(+0.01)(syst) ps, and the relative width difference between the heavy and light mass eigen-states, Delta Gamma/(Gamma) over bar = (Gamma(L) - Gamma(H))/(Gamma) over bar = 0.24(-0.38)(+0.28)(stat)(-0.04)(+0.03)(syst). With the additional constraint from the world average of the B-s(0) lifetime measurements using semileptonic decays, we find (tau) over bar (B-s(0)) = 1.39 +/- 0.06 ps and Delta Gamma/(Gamma) over bar = 0.25(-0.15)(+0.14). For the ratio of the B-s(0) and B-0 lifetimes we obtain (tau) over bar (B-s(0))/tau(B-s(0)) = 0.91 +/- 0.09(stat) +/- 0.003(syst).
dc.language.isoen_US
dc.publisherAMERICAN PHYSICAL SOC
dc.titleMeasurement of the lifetime difference in the B-s(0) system
dc.typeArticle
dc.identifier.doi10.1103/PhysRevLett.95.171801
dc.rights.accessrightsopenAccess


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