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First observation of the decay B-0 -> D*D+*(-)
Ammar, Raymond G. Baringer, Philip S. Bean, Alice Besson, David Zeke Coppage, Don Davis, Robin E. P. Kotov, S. Kravchenko, I. Kwak, Nowhan Zhou, L.
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Davis, Robin E. P.
Kotov, S.
Kravchenko, I.
Kwak, Nowhan
Zhou, L.
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Abstract
We have observed four fully reconstructed B-0 --> D*+D*- candidates in 5.8 x 10(6) Y(4S) --> B (B) over bar decays recorded with the CLEO detector. The background is estimated to be 0.31 +/- 0.10 events. The probability that the background could produce four or more signal candidates with the observed distribution among D*+ and D*- decay modes is 1.1 x 10(-4). The measured decay rate, B(B-0 --> D*+D*-) = [6.2(-2.9)(+4.0)(stat) +/- 1.0(syst)] x 10(-4), is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry. [S0031-9007(99)08881-X].
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Date
1999-04
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AMERICAN PHYSICAL SOC
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Artuso, M, Dambasuren, E, et al. First observation of the decay B-0 -> D*D+*(-). PHYSICAL REVIEW LETTERS. April 1999. 82(15) : 3020-3024