Probing the quadrupole transition strength of C 15 via deuteron inelastic scattering
Probing the quadrupole transition strength of C 15 via deuteron inelastic scattering
复制标题
通过氘核非弹性散射探测C 15 的四极跃迁强度
DOI：
10.1103/physrevc.106.064312
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发表时间：
2022
影响因子：
3.1
通讯作者：
Chen J
中科院分区：
文献类型：
--
作者：
Chen J
本文用逆运动学方法研究了氘原子的弹性散射和第一激发态的非弹性散射反应。散射的氘核是用HELIOS测量的。利用光学模型分析了弹性散射微分截面。从第一激发态的非弹性散射微分截面中提取了物质变形长度。中子和质子矩阵元素的比例已确定从这个四极跃迁。测定了中子有效电荷和堆芯极化参数，并进行了讨论。计算结果与实验结果进行了比较。这一结果支持了一个温和的核心退耦效应的价中子不相似，其同位素，与其他富中子碳同位素的解释。
Deuteron elastic scattering fromand inelastic scattering reactions to the first excited state ofwere studied using a radioactive beam ofin inverse kinematics. The scattered deuterons were measured using HELIOS. The elastic scattering differential cross sections were analyzed using the optical model. A matter deformation lengthhas been extracted from the differential cross sections of inelastic scattering to the first excited state. The ratio of neutron and proton matrix elementshas been determined from this quadrupole transition. Neutron effective charges and core-polarization parameters ofwere determined and discussed. Results fromab initiono-core configuration interaction calculations were also compared with the experimental observations. This result supports a moderate core decoupling effect of the valence neutron insimilarly to its isotone, in line with the interpretation of other neutron-rich carbon isotopes.