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    First measurement of the B->pi l nu and B->rho(omega)l nu branching fractions

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    Issue Date
    1996-12
    Author
    Ammar, Raymond G.
    Baringer, Philip S.
    Bean, Alice
    Besson, David Zeke
    Coppage, Don
    Copty, N.
    Davis, Robin E. P.
    Hancock, N.
    Kotov, S.
    Kravchenko, I.
    Kwak, Nowhan
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
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    Abstract
    CLEO has studied B decays to pi l nu, rho l nu, and omega l nu, where l = e or mu, by incorporating the missing momentum into full B reconstruction. With the B-0 and B+ modes combined according to isospin predictions for the relative partial widths, we obtain B(B-0 --> pi(-)l(+)nu) = (1.8 +/- 0.4 +/- 0.3 +/- 0.2) x 10(-4) and B(B-0 --> rho(-)l(+)nu) = (2.5 +/- 0.4(0.7)(+0.5) +/- 0.5) x 10(-4), where the errors are statistical, systematic, and the estimated model dependence. We also estimate \V-ub\ = (3.3 +/- 0.2(-0.4)(+0.3) +/- 0.7) x 10(-3).
    URI
    http://hdl.handle.net/1808/1417
    Collections
    • Physics and Astronomy Scholarly Works [1632]
    • Center for Russian, East European, and Eurasian Studies Scholarly Publications [557]
    Citation
    Alexander, JP, Bebek, C, et al. First measurement of the B->pi l nu and B->rho(omega)l nu branching fractions. PHYSICAL REVIEW LETTERS. December 1996. 77(25) : 5000-5004

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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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