arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00675hep-phnucl-th
收藏

双粲多重子系统

Doubly charmed multibaryon systems

H. Garcilazo, A. Valcarce

摘要:

我们研究两个和三个重子系统的两个单位的魅力寻找可能的束缚态或共振。所有的两重子相互作用都一致地来自于一个在光味强子现象学中调谐的组分夸克模型:光谱和相互作用。重夸克的存在使得两体相互作用比轻味区更简单。我们的结果显示了量子数为$(I,J^P)=(0,0^+)$的窄二体共振。它位于$Σ_cΣ_c$阈值以下6.2 MeV,宽度为4.7 MeV。上述两体状态有助于产生具有量子数$(I,J^P)=(1/2,1/2^+)$和0.2MeV的分离能的$N Σ_cΣ_c$共振。

英文摘要:

We study two- and three-baryon systems with two units of charm looking for possible bound states or resonances. All two-baryon interactions are consistently derived from a constituent quark model tuned in the light-flavor hadron phenomenology: spectra and interactions. The presence of the heavy quarks makes the two-body interactions simpler than in the light-flavor sector. Our results show a narrow two-body resonance with quantum numbers $(I,J^P)=(0,0^+)$. It is located 6.2 MeV below the $Σ_cΣ_c$ threshold and has a width of 4.7 MeV. The foregoing two-body state contributes to generate a $N Σ_cΣ_c$ resonance with quantum numbers $(I,J^P)=(1/2,1/2^+)$ and a separation energy of 0.2 MeV.

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。

↑