Measurement of the Branching Fractions of ${\Lambda }_c^{+}\to p\bar{K}n(\pi )$

Abstract

Using data recorded by the CLEO-II detector at CESR, we report new measurements of the branching fractions for the decays of the charmed baryon ${\Lambda }_c^{+}$ into $p{K}^{-}{\pi }^{+}{\pi }^0$, $p{\bar{K}}^0$, $p{\bar{K}}^0{\pi }^{+}{\pi }^{-}$, and $p{\bar{K}}^0{\pi }^0$, all measured relative to $p{K}^{-}{\pi }^{+}$. The relative branching fractions are $0.67\pm 0.04\pm 0.11,0.46\pm 0.02\pm 0.04,0.52\pm 0.04\pm 0.05$, and $0.66\pm 0.05\pm 0.07$ respectively.

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