Title

Observation of exclusive B decays to final states containing a charmed baryon

Document Type

Article

Publication Date

1-1-1997

Abstract

Using data collected in the region of the Y(4S) resonance with the CLEO-II detector, we report on the first observation of exclusive decays of the B meson to final states with a charmed baryon. We have measured the branching fractions ℬ(B → Λ p π ) = (0.62 ± 0.11 ± 0.10) × 10 and ℬ(B → Λ p π ) = (1.33 ± 0.31 ± 0.21) × 10 , where the first error is statistical, the second is systematic, and the third is due to uncertainty in the Λ branching fractions. In addition, we report upper limits for final states of the form B → Λ p (n π) and Λ p (n π)π , where (n π) denotes up to four charged pions. © 1997 The American Physical Society. − + ¯ − +0.23 −3 −0 + ¯ − +0.46 −3 + ¯ + ¯ + ¯ 0 c −0.20 c −0.42 c c c

Publication Name

Physical Review Letters

Volume Number

79

First Page

3125

Last Page

3129

Issue Number

17

DOI

10.1103/PhysRevLett.79.3125

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