Title

Search for the decays B0→D(*)+D(*)-

Document Type

Article

Publication Date

1-1-1997

Abstract

Using the CLEO-II data set we have searched for the decays B →D D . We observe one candidate signal event for the decay B →D D with an expected background of 0.022±0.011 events. This yield corresponds to a branching fraction of B(B →D D )=[5.3 (stat)±1.0(syst)]×10 and an upper limit of B(B →D D )<2.2×10 at the 90% C.L. We see no significant excess of signal above the expected background level in the other modes, and we calculate the 90% C.L. upper limits on the branching fractions to be B(B →D D )<1.8×10 and B(B →D D )<1.2×10 . © 1997 The American Physical Society. 0 (*)+ (*)- 0 *+ *- 0 *+ *- +7.1 -4 0 *+ *- -3 0 *± *∓ -3 0 + - -3 -3.7

Publication Name

Physical Review Letters

Volume Number

79

First Page

799

Last Page

803

Issue Number

5

DOI

10.1103/PhysRevLett.79.799

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