The ${\Omega }_c\to {\pi }^{+}({\pi }^0,\eta )\pi {\Xi }^{\ast }$ reactions and the two $\Xi (1820)$ states

Wei-Hong Liang, Raquel Molina, Eulogio Oset

We have studied the ${\Omega }_c\to {\pi }^{+}({\pi }^0,\eta )\pi {\Xi }^{\ast }$ decays, where the final $\pi {\Xi }^{\ast }$ comes from the decay of two resonances around the nominal $\Xi (1820)$, which are generated from the int…