发表机构
North China Electric Power University(华北电力大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究通过QCD求和规则探索特定类型的五夸克态并获基态质谱,建议在特定排他衰变中寻找这些态,其观测有助于了解奇特态性质,区分不同类型的五夸克态和分子态。
AI 中文摘要
我们通过QCD求和规则详细探索了同位旋-自旋-宇称\(IJ^{P}=0{\frac{1}{2}}^-\)、\(0{\frac{3}{2}}^-\)和\(0{\frac{5}{2}}^-\)的双夸克-双夸克-反夸克型\(sssc\bar{c}\)五夸克态,并获得基态质谱。我们建议在\(\Omega_b^- \to P_{csss}^-\phi \to J/\psi \Omega^- \phi\)的排他衰变中寻找这些奇特态。对\(P_{csss}\)态的观测将有助于了解奇特态的性质,并为区分双夸克-双夸克-反夸克型五夸克态和介子-重子型分子态提供绝佳机会。
英文摘要
We explore the diquark-diquark-antiquark type $sssc\bar{c}$ pentaquark states with the isospin-spin-parity $IJ^{P}=0{\frac{1}{2}}^-$, $0{\frac{3}{2}}^-$ and $0{\frac{5}{2}}^-$ via the QCD sum rules in details and obtain the ground state mass spectrum. And we suggest to hunt for these exotic states in the exclusive decay $Ω_b^- \to P_{csss}^-ϕ\to J/ψΩ^- ϕ$. Observations of the $P_{csss}$ states would shed light on the nature of exotic states and provide an excellent opportunity to distinguish the diquark-diquark-antiquark type pentaquark states from meson-baryon type molecular states.
Comments20 pages, 12 figures
Journal refNucl. Phys. B 1032 (2026) 117678
DOI:10.1016/j.nuclphysb.2026.117678