Search for charmless two-body baryonic decays of B mesons

@article{Abe2002SearchFC,
  title={Search for charmless two-body baryonic decays of B mesons},
  author={Koya Abe and et al. and The Belle Collaboration},
  journal={Physical Review D},
  year={2002},
  volume={65},
  pages={911031-911035}
}
We report the results of a search for the rare baryonic decays $B^0 \to p\bar{p}$, $\Lambda\bar{\Lambda}$, and $B^+ \to p\bar{\Lambda}$. The analysis is based on a data set of $31.7\times 10^6 B\bar{B}$ events collected by the Belle detector at the KEKB $e^+e^-$ collider. No statistically significant signals are found, and we set branching fraction upper limits ${\mathcal B}(B^0 \to p\bar{p}) < 1.2 \times 10^{-6}$, ${\mathcal B}(B^0 \to \Lambda\bar{\Lambda}) < 1.0 \times 10^{-6}$, and… 
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