First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: ${\Lambda }_c^{+}\to p{K}^{+}{\pi }^{-}$

Belle Collaboration, S. B. Yang, K. Tanida +190

We report the first observation of the decay ${\Lambda }_c^{+}\to p{K}^{+}{\pi }^{-}$ using a 980 $\mathrm{f}{\mathrm{b}}^{-1}$ data sample collected by the Belle detector at the KEKB asymmetric…