Further study of the NΩ dibaryon within constituent quark models

Inspired by the discovery of the dibaryon d* and the experimental search of N Omega dibaryon with the STAR data, we study the strange dibaryon N Omega further in the framework of the quark delocalization color screening model and the chiral quark model. We have shown N Omega is a narrow resonance in Lambda Xi D-wave scattering before. However, the Lambda - Xi scattering data analysis is quite complicated. Here we calculate the low-energy N Omega scattering phase shifts, scattering length, effective range, and binding energy to provide another approach of STAR data analysis. Our results show there exists an N Omega bound state, which can be observed by the N - Omega correlation analysis with RHIC and LHC data, or by the new developed automatic scanning system at J-PARC. In addition, we also find that the hidden-color channel coupling is important for the N Omega system to develop intermediate-range attraction.