论文标题
$σ_cς_c$手性互动有效领域理论
$Σ_cΣ_c$ interactions in chiral effective field theory
论文作者
论文摘要
我们研究了手性有效理论框架中$σ_Cς_C$系统的相互作用。我们考虑$σ_Cς_C$系统的触点，一杆和两杆交换交互，并将$σ_Cς_C$系统的低能常数与$σ_C^{（*）} \ bar {d}^{（*）} $ Systems通过Quark-level level level ansatz进行接触互动的$σ_Cς_C$系统。我们在$σ_Cς_C$系统的两杆交换图中探索中间通道的影响。我们获得了深度的状态$ [σ_cς_C] _ {j = 0}^{i = 0} $和浅界面状态$ [σ_cς_C] _ {j = 1}^{i = 1} $。作为副产品，我们进一步研究了$λ_Cλ_C$和$λ_Cς_C$ Systems的相互作用。
We study the interactions of the $Σ_cΣ_c$ system in the framework of chiral effective theory. We consider the contact, one-pion and two-pion exchange interactions and bridge the low energy constants of the $Σ_cΣ_c$ system to those of the $Σ_c^{(*)}\bar{D}^{(*)}$ systems through the quark-level ansatz for the contact interaction. We explore the influence of intermediate channels in the two-pion exchange diagrams of the $Σ_cΣ_c$ system. We obtain a deep bound state $[Σ_cΣ_c]_{J=0}^{I=0}$ and a shallow bound state $[Σ_cΣ_c]_{J=1}^{I=1}$. As a byproduct, we further investigate the interactions of the $Λ_cΛ_c$ and $Λ_cΣ_c$ systems.
