Ammar, Raymond G.Baringer, Philip S.Bean, AliceBesson, David ZekeCoppage, DonDavis, Robin E. P.Kotov, S.Kravchenko, I.Kwak, NowhanZhou, L.2007-04-132007-04-131999-04Artuso, M, Dambasuren, E, et al. First observation of the decay B-0 -> D*D+*(-). PHYSICAL REVIEW LETTERS. April 1999. 82(15) : 3020-3024https://hdl.handle.net/1808/1378We 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].en-USArticleopenAccess