Proton single-particle states in [sup 21,23]Na through the ([ital d],[ital n]) reaction
Proton single-particle states in [sup 21,23]Na through the ([ital d],[ital n]) reaction
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[sup 21,23]Na 中通过 ([ital d],[ital n]) 反应的质子单粒子态
DOI：
10.1103/physrevc.48.2775
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
H. Ohnuma
中科院分区：
文献类型：
--
作者：
A. Terakawa;T. Tōhei;T. Nakagawa;A. Sato;J. Takamatsu;M. Mori;A. Narita;H. Orihara;K. Ishii;T. Niizeki;M. Oura;S. Hirasaki;M. Hosaka;G. Jon;K. Miura;H. Ohnuma
在[ital E][sub [ital d]]=25 MeV下，通过[sup 20，22]Ne的（[ital d]，[ital n]）反应研究了[sup 21，23]Na中质子的单粒子态.角分布的发射的中子导致的最终状态，直到[ital E][sub [ital x]]=15 MeV的测量。光谱信息已获得从分析与绝热氘分裂近似，其中[ITAL S]波氘分裂效应已被包括在内。用Vincent和Fortune方法分析了质子的非束缚跃迁。发现在[sup 21，23]Na中观察到的质子单粒子态几乎耗尽了2[ital s]1[ital d]壳层的所有强度。2[ital s]1[ital d]强度的分布由最近的2[ital s]1[ital d]壳模型计算合理地再现。在对同一靶核的剥离和拾取数据进行综合分析的基础上，推导了[sup 20，22]Ne基态费米能级附近质子轨道的占据几率和单粒子能量.
Proton single-particle states in [sup 21,23]Na were studied through the ([ital d],[ital n]) reaction on [sup 20,22]Ne at [ital E][sub [ital d]]=25 MeV. Angular distributions of the emitted neutrons leading to the final states up to [ital E][sub [ital x]]=15 MeV were measured. Spectroscopic information has been obtained from an analysis with the adiabatic deuteron breakup approximation, where [ital s]-wave deuteron breakup effects have been included. Proton unbound transitions were analyzed by means of Vincent and Fortune's method. It was found that the observed proton single-particle states in [sup 21,23]Na exhausted almost all the strength for the 2[ital s]1[ital d] shell. The distributions of the 2[ital s]1[ital d] strength were reasonably reproduced by recent 2[ital s]1[ital d] shell model calculations. The occupation probabilities and single-particle energies of the proton orbits near Fermi levels in the ground states of [sup 20,22]Ne were deduced in a framework of combined analysis of the stripping and pickup data on the same target nucleus.