通过熔合蒸发反应研究“反转岛”附近的核
Study of nuclei in the vicinity of the "Island of Inversion" through fusion-evaporation reaction
摘要:
我们报告的第一个观察到的高自旋状态的核附近的“反转岛”,通过18 O +18 O融合反应填充在入射束能量为34 MeV。聚变反应机制规避了用于填充这些原子核的非平衡反应的限制。从观测到的符合各向异性和线性极化测量中,可以对这些难以填充的核进行详细的自旋宇称测量。详细介绍了~(33)、~(34)P和~(33)S的光谱以及在壳模型框架内的计算结果。
英文摘要:
We report the first observation of high-spin states in nuclei in the vicinity of the "island of inversion", populated via the 18O+18O fusion reaction at an incident beam energy of 34 MeV. The fusion reaction mechanism circumvents the limitations of non-equilibrated reactions used to populate these nuclei. Detailed spin-parity measurements in these difficult to populate nuclei have been possible from the observed coincidence anisotropy and the linear polarization measurements. The spectroscopy of 33,34P and 33S is presented in detail along with the results of calculations within the shell model framework.
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