α-簇超核与手征SU（3）动力学
Alpha-clustered hypernuclei and chiral SU(3) dynamics
摘要：
利用精确的团簇方法（Hyper-THSR波函数）结合由手征SU（3）有效场论导出的密度依赖的$Λ$超子-核相互作用，研究了具有$α$团簇亚结构的轻超核.这种相互作用包括重要的两π交换过程，涉及$ΣN$中间态和相关的三体机制，以及有效质量和表面项中产生的介质$Λ$自能的衍生物扩展。给出了$_Λ^9$ Be和$^{13}_Λ$ C的应用和计算结果，并进行了讨论。此外，最轻的$α$集群超核，$^5_Λ$ He使用现实的$ab initio$四核子密度的结果显示。
英文摘要：
Light hypernuclei with an $α$ cluster substructure of the core nucleus are studied using an accurate cluster approach (the Hyper-THSR wave function) in combination with a density-dependent $Λ$ hyperon-nuclear interaction derived from chiral SU(3) effective field theory. This interaction includes important two-pion exchange processes involving $ΣN$ intermediate states and associated three-body mechanisms as well as effective mass and surface terms arising in a derivative expansion of the in-medium $Λ$ self-energy. Applications and calculated results are presented and discussed for $_Λ^9$Be and $^{13}_Λ$C. Furthermore, the result of the lightest $α$ clustered hypernucleus, $^5_Λ$He using realistic $ab initio$ four nucleon density is shown.
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