Search for $B^0 \to p \bar{p}$, $Λ\barΛ$ and $B^+ \to p \barΛ$ at Belle

Details Search for $B^0 \to p \bar{p}$, $Λ\barΛ$ and $B^+ \to p \barΛ$ at Belle Search for $B^0 \to p \bar{p}$, $Λ\barΛ$ and $B^+ \to p \barΛ$ at Belle

2004-08-29

arxiv.org/abs/hep-ex/0408143v2

Phys.Rev.D71:072007,2005

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 2 figures, submitted to PRD(RC)

Scientific paper

10.1103/PhysRevD.71.072007

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}.

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