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    Measurement of the lifetime difference in the B-s(0) system

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    Issue Date
    2005-10
    Author
    Baringer, Philip S.
    Bean, Alice
    Christofek, L.
    Coppage, Don
    Gardner, J.
    Hensel, Carsten
    Jabeen, S.
    Moulik, Tania
    Wilson, Graham Wallace
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
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    Abstract
    We 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).
    URI
    http://hdl.handle.net/1808/1582
    DOI
    https://doi.org/10.1103/PhysRevLett.95.171801
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    Abazov, VM; Abbott, B, et al. Measurement of the lifetime difference in the B-s(0) system. PHYSICAL REVIEW LETTERS. October 2005. 95(17)

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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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