Measurement of the B(E2↑) strengths of Ca36 and Ca38
Measurement of the B(E2↑) strengths of Ca36 and Ca38
复制标题
Ca36 和 Ca38 的 B(E2�) 强度测量
DOI：
10.1103/physrevc.107.034306
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发表时间：
2023
影响因子：
3.1
通讯作者：
Farris, P. J.
中科院分区：
文献类型：
--
作者：
Dronchi, N.;Weisshaar, D.;Brown, B. A.;Gade, A.;Charity, R. J.;Sobotka, L. G.;Brown, K. W.;Reviol, W.;Bazin, D.;Farris, P. J.
和 的强度经测量分别为 131(20) 和 101(11)。因为状态是质子未结合状态，所以需要测量 / 支化比的值。该支化比为。这些和分支比值可以在具有 ZMB2 相互作用的壳层模型中重现，这种相互作用预测壳层闭合在基态下具有大量质子壳层时是不完整的。这些占用与其他壳模型和能量密度泛函计算不一致。新数据用于通过镜像电荷半径差异提供对称能量密度依赖性约束的更新，并帮助减少天体物理反应的不确定性。
Thestrengths ofandare measured to be 131(20)and 101(11), respectively. Thevalue forrequired a measurement of the/branching ratio because thestate is proton unbound. This branching ratio is. Theseand branching-ratio values can be reproduced in the shell-model with the ZMB2 interaction, an interaction that predicts the-shell closure is incomplete with large proton-shell occupancies in the ground state. These occupancies are at odds with other shell-model and energy-density-functional calculations of. New data are used to provide an update on constraints of the density dependence of the symmetry energy through mirror charge-radii differences as well as to help reduce uncertainties of the astrophysical important) reaction.