Ωcc resonances with negative parity in the chiral constituent quark model

Spectrum of the low-lying Omega(cc) resonances with negative parity, which are assumed to be dominated by sccq (q) over bar pentaquark components, is investigated using the chiral constituent quark model. Energies of the Omega(cc) resonances are obtained by considering the hyperfine interaction between quarks by exchanging a Goldstone boson. Possible sccq (q) over bar configurations with spin-parity 1/2(-), 3/2(-), and 5/2(-) are taken into account. Numerical results show that the lowest Omega(cc) resonances with negative parity may lie at 4050 +/- 100 MeV. In addition, the transitions of the Omega(cc) resonance to a pseudoscalar meson and a ground baryon state are also investigated within the chiral Lagrangian approach. We expect that these Omega(cc) resonances could be observed in the D Xi(c) channel by future experiments.

Automated summary

The spectrum of low-lying Omega(cc) resonances with negative parity, dominated by sccq (q) over bar pentaquark components, was investigated using the chiral constituent quark model. Numerical results suggest that the lowest Omega(cc) resonances with negative parity may lie at around 4050 MeV. Furthermore, transitions of Omega(cc) resonances to pseudoscalar mesons and ground baryon states were studied within the chiral Lagrangian approach, with potential observation in the D Xi(c) channel in future experiments.