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原子核质量及相关物理量的系统研究

Systematic Study on Nuclear Mass and Related Physical Quantities

  • 摘要: 原子核质量(或结合能)和电荷半径是原子核的基本物理量,在原子核物理和核天体物理等领域具有重要意义。本工作主要讨论原子核质量及其相关物理量(如中子-质子相互作用、对能、分离能、α衰变能和库仑能等)、原子核电荷半径等的系统规律。这些系统规律不仅是高精度外推预言未知原子核质量和电荷半径等的实用方法,还对原子核对称能和Wigner能系数提供了有效约束,为原子核低激发态集体运动演化的研究提供了简单线索。作为附件(见科学数据银行),给出了基于这些系统规律得到的原子质量剩余(或结合能)和原子核电荷半径等预言结果。

     

    Abstract: The nuclear mass(or binding energy) and charge radius are fundamental physical quantities of an atomic nucleus, which can provide important information for nuclear physics and astrophysics. This paper discusses the systematics of nuclear mass and its related physical quantities(such as neutron-proton interaction, pairing interaction, separation energy, α-decay energy and Coulomb energy), as well as nuclear charge radius and so on. These systematics are not only practical methods for predicting unknown physical quantities such as nuclear masses and charge radii with high precision, but also provide effective constraints on the coefficients of nuclear symmetry energy and Wigner energy, and give a simple way to study the evolution of collective motion of low-lying states of nuclei. As a Supplemental Material of this paper(see Science Data Bank), a TABLE including predicted physical quantities such as atomic mass excesses(or binding energies) and nuclear charge radii is provided.

     

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