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arXiv 2107.08680hep-phnucl-th
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双夸克模型中的隐魅五夸克态

Hidden charm pentaquark states in a diquark model

Pan-Pan Shi, Fei Huang, Wen-Ling Wang

摘要:

利用包含自旋、色和味相关相互作用的有效哈密顿量,计算了由两个双夸克和一个反夸克组成的隐魅五夸克态的质量谱.结果表明,$P_c(4312)^+$和$P_c(4440)^+$态可以用同位旋和自旋宇称$IJ^P=1/2\left(3/2^-\right)$解释为隐魅五夸克态,$P_c(4457)^+$态可以用$IJ^P=1/2\left(5/2^-\right)$解释为隐魅五夸克态,$P_{cs}(4459)^+$态可以用$IJ^P=0\left(1/2^-\right)$或$0\left(3/2^-\right)$解释为隐魅五夸克态.对其他可能的五夸克态的质量也作了预测,并讨论了这些隐魅五夸克态的可能衰变通道。

英文摘要:

The mass spectrum of hidden charm pentaquark states composed of two diquarks and an antiquark are calculated by use of an effective Hamiltonian which includes explicitly the spin, color, and flavor dependent interactions. The results show that the $P_c(4312)^+$ and $P_c(4440)^+$ states could be explained as hidden charm pentaquark states with isospin and spin-parity $IJ^P=1/2\left(3/2^-\right)$, the $P_c(4457)^+$ state could be explained as a hidden charm pentaquark state with $IJ^P=1/2\left(5/2^-\right)$, and the $P_{cs}(4459)^+$ state could be explained as a hidden charm pentaquark state with $IJ^P=0\left(1/2^-\right)$ or $0\left(3/2^-\right)$. Predications for the masses of other possible pentaquark states are also given, and the possible decay channels of these hidden charm pentaquark states are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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