AI 中文总结
本文采用三集团模型，结合核子-核子势与YNG核子-超子势，研究$_Λ^7$He等三种超核的共振结构，发现了宽度不超10 keV的极窄共振态并明确其主导衰变道。
AI 中文摘要
本文在三集团模型框架下研究超核$_Λ^7$He、$_Λ^7$Li和$_Λ^7$Be的束缚态与共振态。在该模型中，这三种超核分别被视为三集团系统：$^4$He+$^2$n+Λ、$^4$He+$d$+Λ、$^4$He+$^2$p+Λ。研究重点在于确定这些超核三集团连续谱中的共振态并探究其性质。采用一种半现实的核子-核子势确定$^4$He、$^2$n、$d$、$^2$p等集团的内部结构及相互作用，采用三种版本的核子-超子势（YNG势）确定上述集团与Λ超子的相互作用。在三种超核的三集团连续谱中发现了一系列极窄和较宽的共振态，其中$_Λ^7$He和$_Λ^7$Li中检测到的最窄共振态总宽度不超过10 keV，同时明确了这些共振态的主导衰变道。
英文摘要
The bound and resonance states of hypernuclei $_Λ^{7}$He, $_Λ^{7}$Li and $_Λ^{7}$Be are studied within a three-cluster model. Within this model, hypernuclei $_Λ^{7}$He, $_Λ^{7}$Li and $_{Λ}^{7}$Be are considered as three-cluster systems $^{4}$He+$^2n$+$Λ$, $^{4}$He+$d$+$Λ$, $^{4}$He+$^2p$+$Λ$, respectively. Special attention is paid to determining resonance states in the three-cluster continuum of these hypernuclei and to study their nature. One semi-realistic nucleon-nucleon potential is employed to determine the internal structure of the clusters $^{4}$He, $^2n$, $d$ and $^2p$, and their interaction. Three versions of the nucleon-hyperon potential, known as the YNG potential, are employed to determine the interaction of the listed clusters with the lambda hyperon. A set of very narrow and fairly wide resonance states is found in the three-cluster continuum of $_Λ^{7}$He, $_Λ^{7}$Li and $_Λ^{7}$Be. The narrowest resonance states were detected in $_Λ^{7}$He and $_Λ^{7}$Li and their total width does not exceed 10 keV. The dominant decay channels of these resonance states are revealed.
Comments53 pages, 21 figures, 16 tables, typos corrected
