Reanalysis of the newly observed Ω* state in a hadronic molecule model

After the recent discovery of the new Omega* state, the ratio of the branching fractions of Omega(2012) -> (K) over bar pi Xi relative to the (K) over bar Xi decay channel was investigated by the Belle Collaboration. The measured 11.9% upper limit to this ratio is in sharp tension with the S-wave (K) over bar Xi(1530) molecule interpretation for Omega(2012), which indicates the dominant (K) over bar pi Xi three-body decay. We try to explore the possibility of the P-wave molecule assignments for Omega(2012) [where Omega(2012) has positive parity]. It is found that the latest experimental measurements are compatible with the 1/2(+) and 3/2(+) (K) over bar Xi(1530) molecular pictures, while the 5/2(+) (K) over bar Xi(1530) molecule shows larger (K) over bar pi Xi three-body decay than (K) over bar Xi decay as in the case of an S-wave molecule. Thus, the newly observed Omega(2012) can be interpreted as the 1/2(+) or 3/2(+) (K) over bar Xi(1530) molecule state according to current experiment data.