First Observation of Inclusive $B$ Decays to the Charmed Strange Baryons $Ξ_{c}^{0}$ and $Ξ_{c}^{+}$

Preprint

8 May 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9705005

Abstract

Using data collected in the region of the Upsilon(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring CESR, we present the first observation of B mesons decaying into the charmed strange baryons Xi_c0 and Xi_c+. We find 79 +/- 27 Xi_c0 and 125 +/- 28 Xi_c+ candidates from B decays, leading to product branching fractions of BR(Bbar -> Xi_c0 X)BR(Xi_c0 -> Xi- pi+) = (0.144 +/- 0.048 +/- 0.021) x 10^-3 and BR(Bbar -> Xi_c+ X)BR(Xi_c+ -> Xi- pi+ pi+) = (0.453 +/- 0.096 +0.085-0.065) x 10^-3.

Keywords

CHARMED STRANGE BARYONS
STRANGE BARYONS
DECAYS
XI_C0
BBAR

All Related Versions

Version 1, 1997-05-08, ArXiv
Published version: Physical Review Letters, 79 (19), 3599.

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