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    Direct limits on the B-s(0) oscillation frequency

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    Issue Date
    2006-07
    Author
    Baringer, Philip S.
    Bean, Alice
    Christofek, L.
    Coppage, Don
    Gardner, J.
    Hensel, Carsten
    Moulik, Tania
    Wilson, Graham Wallace
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
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    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)%.
    URI
    http://hdl.handle.net/1808/1556
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    Abazov, VM; Abbott, B, et al. Direct limits on the B-s(0) oscillation frequency. PHYSICAL REVIEW LETTERS. July 2006. 97(2)

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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