论文标题
阈值附近的隐藏式五角星的丰富结构
Rich structure of the hidden-charm pentaquarks near threshold regions
论文作者
论文摘要
最近对高能加速器设施对五夸克和四夸克的大量观察表明，盖尔·曼恩和Zweig以及de Rujula，Georgi和Glashow对猜想的实现[1-3]。我们为隐藏的五角夸克构建了一个耦合通道模型，其夸克内容为$ udsc \ bar c $，$ p_ {cs} $，被描述为$λ_c\ bar {d} _s _s _s _s _s^{（*）}，到五夸克州。这些分子是由重夸克和手性对称性的合适合作形成的。我们重现了$ p_ {cs}（4338）$的实验质量和量子数$ j^p $，而LHCB刚刚宣布了这一发现。我们对新的$ p_ {cs} $状态做出了其他预测，因为分子状态接近阈值区域，可以由LHCB研究。
The recent abundant observations of pentaquarks and tetraquarks by high-energy accelerator facilities indicate the realization of the conjecture by Gell-Mann and Zweig, and by De Rujula, Georgi and Glashow [1-3]. We construct a coupled-channel model for the hidden-charm pentaquarks with strangeness whose quark content is $udsc \bar c$, $P_{cs}$, described as $ Λ_c \bar{D}_s^{(*)}, Ξ_c^{('*)} \bar{D}^{(*)}$ molecules coupled to the five-quark states. These molecules are formed by the suitable cooperation of heavy quark and chiral symmetries. We reproduce the experimental mass and quantum numbers $J^P$ of $P_{cs}(4338)$ for which LHCb has just announced the discovery. We make other predictions for new $P_{cs}$ states as molecular states near threshold regions that can be studied by LHCb.
