Progress of Theoretical Nuclear Research in 2018 at IMP

• 作者: Zuo Wei
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报:英文版
• 学科: 物理学
• 关键词: SYMMETRY MIRROR BREAKING
• 年，卷（期）: 2018,（1）
• 页码范围: 3-3
• 页数: 1页
• 分类号: O57

摘要

In 2018,the researchers of Theoretical Physics Group at IMP have carried out their research work on nuclear physics,heavy ion physics and nuclear astrophysics.Some important results have been obtained.A generalized isobaric multiplet mass equation(GIMME)has been derived microscopically and by using the GIMME,the long-standing question of the origin of the Nolen-Schiffer anomaly(NSA)found in the Coulomb displacement energy of mirror nuclei,has been investigated[1].It is shown that the naturally emerged CSB term in GIMME is responsible essentially for explaining the NSA.Besides,combined with the charge-symmetry-breaking effect,the Coulomb energy with the mirror nuclei has been constrained and the mass-dependent symmetry energy coefficient of heavy nuclei has been extracted[2].The neutron skin thickness of 208Pb and density dependence of the symmetry energy coefficient of nuclear matter have also been reextracted.The proton spectral functions in finite nuclei has been calculated and it is shown that the proportion of the high density region of the proton plays a crucial role in determining the target-dependent behavior of the scaled proton spectral function[3].