论文标题
无核壳模型的SS-Horse扩展：在$^7 {\ Mathrm He} $中应用于共振
SS-HORSE Extension of the No-Core Shell Model: Application to Resonances in $^7{\mathrm He}$
论文作者
论文摘要
提出了对未结合$ {\ rm^{7} he} $ nucleus中共振的理论依据研究。我们使用$ nn $互动Daejeon16和JISP16执行无芯外壳模型计算，并利用SS-Horse方法来计算两体通道的$ s $矩阵$ n { - } { - rm^{6} {6} he} he} he} $ n} $ and $ n { - } - } $ {\ rm^{6} he} $在地面上分别和激发$ 2^{+} $状态以及四体民主衰变通道$ {{\ rm^{4} he}+n+n+n+n} $。通过$ s $ -matrix杆的数值位置，谐振能量和宽度可容纳。我们描述了所有实验已知的$ {\ rm^{7} he} $共振，并提出对观察到的无知旋转式共鸣的解释。
Theoretical ab initio studies of resonances in the unbound ${\rm^{7}He}$ nucleus are presented. We perform no-core shell model calculations with $NN$ interactions Daejeon16 and JISP16 and utilize the SS-HORSE method to calculate the $S$ matrix for two-body channels $n{-}{\rm^{6}He}$ and $n{-}{\rm^{6}He^{*}}$ with ${\rm^{6}He}$ respectively in the ground and excited $2^{+}$ states as well as for the four-body democratic decay channel ${{\rm^{4}He}+n+n+n}$. The resonant energies and widths areobtained by numerical location of the $S$-matrix poles. We describe all experimentally known ${\rm^{7}He}$ resonances and suggest an interpretation of an observed wide resonance of unknown spin-parity.
