26-31 July 2021
Mexico City
Mexico/General timezone
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Contribution Leading parallel

Mexico City -
Baryon Spectroscopy

The newly observed Omega(2012) as a Kbar-Xi(1530) hadronic molecule


  • Ju-Jun XIE

Primary authors


Belle collaboration measured the ratios of the branching fractions of the newly observed Omega(2012) excited state.We revisit the Omega(2012) from the molecular perspective where it appears to be a dynamically generated state with spin−parity 3/2- from the coupled channels interactions of the Kbar Xi(1530) and eta Omega and Kbar Xi. With the model parameters, it is shown that the ratio of these decay fractions reported recently by the Belle collaboration can be accommodated.