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Direct limits on the B-s(0) oscillation frequency
dc.contributor.author | Baringer, Philip S. | |
dc.contributor.author | Bean, Alice | |
dc.contributor.author | Christofek, L. | |
dc.contributor.author | Coppage, Don | |
dc.contributor.author | Gardner, J. | |
dc.contributor.author | Hensel, Carsten | |
dc.contributor.author | Moulik, Tania | |
dc.contributor.author | Wilson, Graham Wallace | |
dc.date.accessioned | 2007-05-14T18:33:41Z | |
dc.date.available | 2007-05-14T18:33:41Z | |
dc.date.issued | 2006-07 | |
dc.identifier.citation | Abazov, VM; Abbott, B, et al. Direct limits on the B-s(0) oscillation frequency. PHYSICAL REVIEW LETTERS. July 2006. 97(2) | |
dc.identifier.other | http://publish.aps.org/ | |
dc.identifier.uri | http://hdl.handle.net/1808/1556 | |
dc.description.abstract | We report results of a study of the B-s(0) oscillation frequency using a large sample of B-s(0) semileptonic decays corresponding to approximately 1 fb(-1) of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider in 2002-2006. The amplitude method gives a lower limit on the B-s(0) oscillation frequency at 14.8 ps(-1) at the 95% C.L. At Delta m(s)=19 ps(-1), the amplitude deviates from the hypothesis A=0 (1) by 2.5 (1.6) standard deviations, corresponding to a two-sided C.L. of 1% (10%). A likelihood scan over the oscillation frequency, Delta m(s), gives a most probable value of 19 ps(-1) and a range of 17 <Delta m(s)< 21 ps(-1) at the 90% C.L., assuming Gaussian uncertainties. This is the first direct two-sided bound measured by a single experiment. If Delta m(s) lies above 22 ps(-1), then the probability that it would produce a likelihood minimum similar to the one observed in the interval 16-22 ps(-1) is (5.0 +/- 0.3)%. | |
dc.language.iso | en_US | |
dc.publisher | AMERICAN PHYSICAL SOC | |
dc.title | Direct limits on the B-s(0) oscillation frequency | |
dc.type | Article | |
dc.rights.accessrights | openAccess |