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arXiv 2001.09662nucl-exnucl-th
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用(18 O,16 O)双中子转移反应研究原子核结构

Nuclear structure studies performed using the (18O,16O) twoneutron transfer reactions

D. Carbone, C. Agodi, F. Cappuzzello, M. Cavallaro, J. L. Ferreira, A. Foti, A. Gargano, S. M. Lenzi, R. Linares, J. Lubian, G. Santagati

摘要:

测量了84 MeV入射能量下13 C(18 O,16 O)15 C双中子转移反应的激发能谱和绝对截面角分布。这个反应选择性地在剩余核的状态中填充两个中子配置。精确的有限范围耦合反应通道计算用于分析数据。两种方法进行了讨论:极端集群和新引入的微观集群。后者利用光谱振幅的质量中心参考系,来自壳模型计算使用Moshinsky变换括号。计算结果很好地描述了实验截面,并在所涉及的波函数中突出了团簇构型。

英文摘要:

Excitation energy spectra and absolute cross section angular distributions were measured for the 13C(18O,16O)15C two-neutron transfer reaction at 84 MeV incident energy. This reaction selectively populates two-neutron configurations in the states of the residual nucleus. Exact finite-range coupled reaction channel calculations are used to analyse the data. Two approaches are discussed: the extreme cluster and the newly introduced microscopic cluster. The latter makes use of spectroscopic amplitudes in the centre of mass reference frame, derived from shell-model calculations using the Moshinsky transformation brackets. The results describe well the experimental cross section and highlight cluster configurations in the involved wave functions.

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