Molecular picture of the Omega(2012)

Speaker: Natsumi Ikeno (Tottori U, Japan)
Date & time: 2pm KST, Sep 28, 2021
Place: Online (Zoom)

We study the $\Omega(2012)$ which was measured in the Belle experiment. We conduct a study of the interaction of the $\bar{K}\Xi^\ast$, $\eta\Omega$(s-wave) and $\bar{K}\Xi$(d-wave) channels within a coupled channel unitary approach. We find that all data including the Belle experiment on the ratio of the decay width $\Gamma(\Omega^\ast\rightarrow\pi\bar{K}\Xi)/\Gamma(\Omega^\ast\rightarrow\bar{K}\Xi)$ are compatible with the molecular picture stemming from meson baryon interaction of these channels. In this talk, I report the results based on Ref. [1].

Reference:
[1] N. Ikeno, G. Toledo, and E. Oset, Phys. Rev. D 101, 094016 (2020).