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arXiv 1410.2691nucl-th
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基于质子-中子混合能量密度泛函的平均场计算

Mean-Field Calculation Based on Proton-Neutron Mixed Energy Density Functionals

Koichi Sato, Jacek Dobaczewski, Takashi Nakatsukasa, Wojciech Satuła

摘要:

我们已经进行了计算的基础上Skyrme能量密度功能(EDF),包括质子和中子之间的任意混合。在这个框架中,单粒子状态被概括为质子和中子成分的混合物。该模型假定Skyrme EDF在旋转下保持不变,库仑力是同位旋对称性破缺的唯一来源。为了控制系统的同位旋,我们采用了isocranking方法,这是类似于用于描述高自旋状态的标准曲柄方法。在这里,我们提出的同量异位素类似物的状态在$A = 40$和$A = 54$核进行计算的结果。

英文摘要:

We have performed calculations based on the Skyrme energy density functional (EDF) that includes arbitrary mixing between protons and neutrons. In this framework, single-particle states are generalized as mixtures of proton and neutron components. The model assumes that the Skyrme EDF is invariant under the rotation in isospin space and the Coulomb force is the only source of the isospin symmetry breaking. To control the isospin of the system, we employ the isocranking method, which is analogous to the standard cranking approach used for describing high-spin states. Here, we present results of the isocranking calculations performed for the isobaric analog states in $A = 40$ and $A = 54$ nuclei.

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