N = 28同色:向缺质子侧的形状共存

IF 0.2 Q4 PHYSICS, MULTIDISCIPLINARY

St Petersburg Polytechnic University Journal-Physics and Mathematics Pub Date : 2017-12-01 DOI:10.1016/j.spjpm.2017.10.002

G. Saxena , M. Kaushik

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引用次数: 1

摘要

我们采用RMF+BCS(相对论平均场和bardeen - coopero - schrieffer)方法研究了N = 28同色子在缺质子侧的形状共存现象。我们目前的研究包括单粒子能量、变形、结合能和激发能。在缺质子侧，由于中子1f7/2和1f5/2之间的间隙减小，N = 28的壳层闭合消失，40Mg、42Si和44S原子核具有形状共存，进一步支持了壳层间隙减弱的理论。这些结果与其他理论和实验研究结果非常吻合，并通过各种计算和参数得到了加强。

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N = 28 isotones: Shape coexistence towards proton-deficient side

We have employed RMF+BCS (relativistic mean-field and Bardeen-Cooper-Schrieffer) approach to study the phenomenon of shape coexistence in N = 28 isotones towards the proton-deficient side. Our present investigations include single particle energies, deformations, binding energies as well as excitation energies. It is found that towards the proton-deficient side, N = 28 shell closure disappears due to reduced gap between neutron 1f_7/2 and 1f_5/2 and the nuclei ⁴⁰Mg, ⁴²Si, and ⁴⁴S are found to possess shape coexistence giving further support to weakening of the shell gap. These results are found in excellent match with other theoretical and experimental studies and are fortified with a variety of calculations and parameters.

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来源期刊

St Petersburg Polytechnic University Journal-Physics and Mathematics PHYSICS, MULTIDISCIPLINARY-

自引率

50.00%

发文量