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    Study of B decays to charmonium states: B -> eta K-c and B -> chi K-c0

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    Issue Date
    2001-01
    Author
    Ammar, Raymond G.
    Bean, Alice
    Besson, David Zeke
    Davis, Robin E. P.
    Kwak, Nowhan
    Zhao, X.
    Publisher
    AMERICAN PHYSICAL SOC
    Type
    Article
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    Abstract
    In a sample of 9.66 x 10(6) B(B) over bar pairs collected with the CLEO detector we make the first observation of B decays to an eta (c) and a kaon. We measure branching fractions B(B+ --> eta K-c(+)) = (0.69(-0.21)(+0.26) +/- 0.08 +/- 0.20) x 10(-3) and B(B degrees --> eta K-c degrees) = (1.09(-0.42)(+0.55) +/- 0.12 +/- 0.31) x 10(-3), where the first error is statistical, the second is systematic, and the third is from the eta (c) branching fraction uncertainty. From these we extract the eta (c) decay constant in the factorization approximation, f(eta), = 335 +/- 75 MeV. We also search for B decays to a chi (c0) and a kaon. No evidence for a signal is found and we set 90% C.L. upper limits: B(B+ --> chi K-c0(+)) < 4.8 x 10(-4) and B(B<degrees> --> chi K-c0 degrees) < 5.0 x 10(-4).
    URI
    http://hdl.handle.net/1808/1323
    Collections
    • Center for Russian, East European, and Eurasian Studies Scholarly Publications [546]
    • Physics & Astronomy Scholarly Works [1744]
    Citation
    Edwards, KW, Janicek, R, et al. Study of B decays to charmonium states: B -> eta K-c and B -> chi K-c0. PHYSICAL REVIEW LETTERS. January 2001. 86(1) : 30-34

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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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