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arXiv 2103.09978hep-phnucl-th
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具有隐粲和三体性质的$N^*$态

$N^*$ states with hidden charm and a three-body nature

Brenda B. Malabarba, K. P. Khemchandani, A. Martinez Torres

AI总结:

本文通过$ND\ar D^*-N\ar D D^*$三体动力学研究,预言了质量在4400-4600 MeV、同位旋1/2、自旋宇称1/2+和3/2+的隐粲$N^*$共振,并探讨了隐粲$Δ_c$态的存在可能性。

摘要:

在这项工作中,我们研究了$ND\ar D^*-N\ar D D^*$系统中动力学所导致的$N^*$形成,其中$D\ar D^* - \ar D D^*$子系统在同位旋0中产生$X(3872)$,在同位旋1中产生$Z_c(3900)$。我们发现同位旋$I=1/2$、质量处于$4400-4600$ MeV能区的态具有自旋-宇称$J^P=1/2^+$和$3/2^+$,由此预言了具有隐粲和三体性质的$N^*$共振的存在。我们还讨论了$Δ_c$态(即具有隐粲的$Δ$)存在的可能性。

英文摘要:

In this work we study the formation of $N^*$'s as a consequence of the dynamics involved in the $ND\bar D^*-N\bar D D^*$ system when the $D\bar D^*-\bar D D^*$ subsystem generates $X(3872)$ in isospin 0 and $Z_c(3900)$ in isospin 1. States with isospin $I=1/2$ and mass in the energy region $4400-4600$ MeV are found to arise with spin-parity $J^P=1/2^+$ and $3/2^+$, leading to predictions in this way of the existence of $N^*$ resonances with hidden charm and a three-body nature. We also discuss the possibility of the existence of $Δ_c$ states, i.e., $Δ$'s with hidden charm.

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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