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What is Search for $B^0 \to p \bar{p}$, $\Lambda \bar{\Lambda}$ and $B^+ \to p \bar{\Lambda}$ at Belle about?

We report results of a search for the charmless two-body baryonic decays B^0 \to p \bar{p}, B^0 \to \Lambda \bar{\Lambda}, and B^+\to p \bar{\Lambda} based on the analysis of a 140 fb^{-1} data sample. We set 90% confidence level upper limits on their branching fractions: B(B^0 \to p \bar{p}) < 4.1 x 10^{-7}, B(B^0 \to \Lambda \bar{\Lambda}) < 6.9 x 10^{-7}$, and B(B^+ \to p \bar{\Lambda}) < 4.9 x 10^{-7}.

Author

Chang, M. -C.

Published

2004

Language

EN