Mass spectra of NΩ dibaryons in the 3S1 and 5S2 channels

We study the mass spectra of the N Omega dibaryons in the S-3(1) and S-5(2) channels with J(P) = 1(+) and 2(+), respectively, by using the method of QCD sum rules. We construct two dibaryon interpolating currents in the molecular picture and calculate their correlation functions and spectral densities up to dimension-16 condensates. Our results indicate that there may exist an N Omega dibaryon bound state in the S-5(2) channel with a binding energy of about 21 MeV. The masses of the S-3(1) N Omega dibaryons with JP = 1(+) are predicted to be higher than the N Omega and Lambda Xi thresholds and thus, can decay into these final states directly in S wave. The N Omega(S-5(2)) dibaryon bound state can decay into the octet-octet final states Lambda Xi and Sigma Xi in D wave via the quark rearrangement mechanism. The existence of these N Omega dibaryons may be identified in the relativistic heavy-ion collision experiments in the future.

Automated summary

This study investigates the mass spectra of N Omega dibaryons in different channels and predicts the existence of a bound state in the S-5(2) channel. The results suggest that N Omega dibaryons in the S-3(1) channel may decay directly into final states in S wave. This research provides insights into the potential identification of these N Omega dibaryons in future relativistic heavy-ion collision experiments.