We conduct a dynamical calculation of pentaquark systems with quark contents sssuuˉ in the framework of two quark models: the chiral quark model(ChQM) and quark delocalization color screening model(QDCSM). The effective potentials between baryon and meson clusters are given, and the possible bound states are also investigated. Besides, the study of the scattering process of the open channels is also performed to look for any resonance state. The results show that the Ω(2012) is not suitable for the interpretation as a Ξ∗Kˉ molecular state in present quark models. Two resonance states: the Ξ∗Kˉ∗ with IJP=023− (M=2328∼2374 MeV, Γ=57∼65.5 MeV) and IJP=123− (M=2341∼2386 MeV, Γ=31.5∼100 MeV) are obtained in both QDCSM and ChQM, which indicates that both of these two states are more possible to be existed and worthy of being searched by future experiments.
@article{arxiv.2010.15398,
title = {Can $\Omega(2012)$ be explained as a molecular state?},
author = {Xuejie Liu and Hongxia Huang and Jialun Ping and Dianyong Chen},
journal= {arXiv preprint arXiv:2010.15398},
year = {2021}
}