Title

First observation of the decay B0 → D* + D*-

Document Type

Article

Publication Date

1-1-1999

Abstract

We have observed four fully reconstructed B → D + D candidates in 5.8×106 ϒ(4S) → BB 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 × 10 . The measured decay rate, B(B → D D ) = [6.2 (stat) ± 1.0(syst)] × 10 , is large enough for this decay mode to be of interest for the measurement of a time-dependent CP asymmetry. © 1999 The American Physical Society. 0 * *- *+ *- -4 0 *+ *- +4.0 -4 -2.9

Publication Name

Physical Review Letters

Volume Number

82

First Page

3020

Last Page

3024

Issue Number

15

DOI

10.1103/PhysRevLett.82.3020

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