Abstract
We report the results of a search for the rare baryonic decay modes B0→ΛΛ¯, B+→Λ¯p, B0→Λ¯pπ−, and B0→pp¯ (and their charge conjugate states) using 5.8×106 BB¯ pairs collected with the CLEO detector. We see no statistically significant signals in any of these modes and set 90% confidence level upper limits on their branching fractions, B(B0→ΛΛ¯)<3.9×10−6, B(B+→Λ¯p)<2.6×10−6, B(B0→Λ¯pπ−)<1.3×10−5, and B(B0→pp¯)<7.0×10−6. Received 30 October 1998DOI:https://doi.org/10.1103/PhysRevD.59.111101©1999 American Physical Society
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