Further study of the $N\Omega$ dibaryon within constituent quark models

Abstract

Inspired by the discovery of the dibaryon $d^{\ast }$ and the experimental search of $N\Omega$ dibaryon with the STAR data, we study the strange dibaryon $N\Omega$ further in the framework of quark delocalization color screening model and 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. Besides, we also find that the hidden color channel-coupling is important for the $N\Omega$ system to develop intermediate-range attraction.

7 pages, 2 figures

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• $N\Omega$ interaction: meson exchanges, inelastic channels, and quasibound state
• Scattering of decuplet baryons in chiral effective field theory
• Search for a hidden strange baryon-meson bound state from $\varphi$ production in a nuclear medium
• $\Omega NN$ and $\Omega \Omega N$ states
• Search for doubly-heavy dibaryons in the quark-delocalization color-screening model
• $P_c$-like pentaquarks in hidden strange sector
• $ND$ and $NB$ systems in quark delocalization color screening model
• $\Omega$-dibaryon production with hadron interaction potential from the lattice QCD in relativistic heavy-ion collisions
• Multi-Objective Energy Efficient Resource Allocation and User Association for In-band Full Duplex Small-Cells
• Investigating tetraquarks composed of $us\bar{d}\bar{b}$ and $ud\bar{s}\bar{b}$
• Towards the decay properties of deuteron-like state $d_{N\Omega }$
• Prediction of $N\Omega$-like dibaryons with heavy quarks
• Reanalysis of the most strange dibaryon within constituent quark models
• Simple Woods-Saxon type form for $\Omega \alpha$ and $\Xi \alpha$ interactions using Folding Model
• Hidden strange pentaquark in constituent quark models
• Folding procedure for $\Omega$-$\alpha$ potential
• Examination of the lattice QCD-motivated strong attractive $\Omega N$ potentials in the ${\Omega }^{-}np$ system
• Investigation of meson-meson interaction
• Bound States of $\Omega$ Baryons in Light Nuclei