Flavor-specific inclusive B decays to charm

CLEO Collaboration

研究成果: Article査読

81 被引用数 (Scopus)

抄録

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(D0 → 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.

本文言語English
ページ(範囲)1150-1155
ページ数6
ジャーナルPhysical review letters
80
6
DOI
出版ステータスPublished - 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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