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Search for the decays B-0->D(*)D+(*)(-)
Ammar, Raymond G. Baringer, Philip S. Bean, Alice Besson, David Zeke Coppage, Don Darling, C. Davis, Robin E. P. Hancock, N. Kotov, S. Kravchenko, I.
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Darling, C.
Davis, Robin E. P.
Hancock, N.
Kotov, S.
Kravchenko, I.
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Abstract
Using the CLEO-II data set we have searched for the decays B-0 --> D-(*+)D-(*-) We observe one candidate signal event for the decay B-0 --> D*+D*- with an expected background of 0.022 +/- 0.011 events. This yield corresponds to a branching fraction of B(B-0 --> D*+D*-) = [5.3(-3.7)(+7.1)(stat)) +/- 1.0(syst)] X 10(-4) and an upper limit of B(B-0 --> D*-D*-) < 2.2 x 10(-3) at the 90% C.L. We see no significant excess of signal above the expected background level in the other modes,,modes, and we calculate the 90% C.L. upper limits on the branching fractions to be B(B-0 --> D*+/-D-/+ < 1.8 X 10(-3) and B(B-0 --> D+D-) < 1.2 X 10(-3).
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1997-08
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AMERICAN PHYSICAL SOC
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Asner, DM, Bliss, DW, et al. Search for the decays B-0->D(*)D+(*)(-). PHYSICAL REVIEW LETTERS. August 1997. 79(5) : 799-803