Title

Flavor-specific inclusive B decays to charm

Document Type

Article

Publication Date

1-1-1998

Abstract

We have measured the branching fractions for B → D®X, B → D®X, and B → D®Xℓ+v. From these results and some previously measured branching fractions, we obtain B(b → cc®s) = (21.9 ± 3.7)%, B(b → sg) < 6.8% at 90% C.L., and B(D → K− π+ = (3.69 ± 0.20)%. Implications for the “B semileptonic decay problem” (measured branching fraction being below theoretical expectations) are discussed. With the increase in the value of B(b → cc®s) due to B → DX, the discrepancy is no longer statistically compelling. © 1998 American Physical Society. 0

Publication Name

Physical Review Letters

Volume Number

80

First Page

1150

Last Page

1155

Issue Number

6

DOI

10.1103/PhysRevLett.80.1150

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