Interpretation of the Ωc → π+ Ω(2012) → π+ ((K)over-barΞ) relative to Ωc → π+ (K)over-barΞ from the Ω (2012) molecular perspective

We present a mechanism for Omega(c) -> pi(+)Omega (2012) production through an external emission Cabibbo favored weak decay mode, where the Omega (2012) is dynamically generated from the interaction of (K) over bar Xi(*) (1530) and eta Omega, with (K) over bar Xi as the main decay channel. The Omega (2012) decays later to (K) over bar Xi. in this picture, with results compatible with Belle data. As a consequence, one can evaluate the direct decay Omega(0)(c) -> pi K-+(-)Xi(0) and the decay Omega(0)(c) -> pi(+)(K) over bar Xi* pi(+)eta Omega with direct couplings of (K) over bar Xi* and eta Omega to K-Xi(0). We show that, within uncertainties and using data from a recent Belle measurement, all three channels account for about (12-20)% of the total Omega(c) -> pi K-+(-)Xi(0) decay rate. The consistency of the molecular picture with all the data is established by showing that Omega(c) -> Xi(0)(K) over bar*(0) -> Xi K-0(-)pi(+) and Omega(c) -> pi(+)Omega* -> pi K-+(-Xi 0) account for about 85% of the total Omega(c) -> pi K-+(-)Xi(0).

Automated summary

We present a mechanism for Omega(c) -> pi(+)Omega (2012) production through an external emission Cabibbo favored weak decay mode, where the Omega(2012) is dynamically generated from the interaction of (K) over bar Xi(*) (1530) and eta Omega. The results show that Omega(2012) decays to (K) over bar Xi and are consistent with Belle data. Furthermore, the direct decays Omega(0)(c) -> pi K-+(-)Xi(0) and Omega(0)(c) -> pi(+)(K) over bar Xi* pi(+)eta Omega, account for about (12-20)% of the total Omega(c) -> pi K-+(-)Xi(0) decay rate.