论文标题

精选的pentaquark State $ p_c(4312)$ in Mathal组成夸克模型

Selected strong decays of pentaquark State $P_c(4312)$ in a chiral constituent quark model

论文作者

Dong, Yubing, Shen, Pengnian, Huang, Fei, Zhang, Zongye

论文摘要

新确认的Pentaquark State $ p_c(4312)$被视为较弱的$(σ_c\ bar {d})$ state y state y state y state y state y state y state y state y state y state y state y state a nate tage the Quark of Freedom of Freedom of Freedom of Freedom的动态计算在其中考虑了Quark Exchange效果。获得的质量$ 4308 $ MEV同意数据。在这项工作中,通过获得的波函数研究了$ p_c(4312)$状态的选定强衰变。结果表明,$λ_c\ bar {d}^*$衰减的宽度不堪重负,并且$ p \,η_c$和$ p \,j/ψ$衰减的分支比率都小于1个百分点。

The newly confirmed pentaquark state $P_c(4312)$ has been treated as a weakly bound $(Σ_c\bar{D})$ state by a well-established chiral constituent quark model and by a dynamical calculation on quark degrees of freedom where the quark exchange effect is accounted for. The obtained mass $4308$ MeV agrees with data. In this work, the selected strong decays of the $P_c(4312)$ state are studied with the obtained wave function. It is shown that the width of the $Λ_c\bar{D}^*$ decay is overwhelmed and the branching ratios of the $p\,η_c$ and $p\,J/ψ$ decays are both less than 1 percentage.

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