Rare Baryonic Decays of B Mesons CLEO
نویسندگان
چکیده
We report the results of a search for the rare baryonic decay modes B0 → ΛΛ, B+ → Λp, B0 → Λpπ, 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+ → Λp) < 2.6 × 10−6, B(B0 → Λpπ) < 1.3 × 10−5, and B(B0 → pp) < 7.0 × 10−6.
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تاریخ انتشار 1998