Nuclear Mass Measurements Map the Structure of Atomic Nuclei and Accreting Neutron Stars
Z. Meisel, S. George, S. Ahn, D. Bazin, B. A. Brown, J. Browne, J. F. Carpino, H. Chung, R. H. Cyburt, A. Estradé, M. Famiano, A. Gade, C. Langer, M. Matoš, W. … 展开作者
Z. Meisel, S. George, S. Ahn, D. Bazin, B. A. Brown, J. Browne, J. F. Carpino, H. Chung, R. H. Cyburt, A. Estradé, M. Famiano, A. Gade, C. Langer, M. Matoš, W. Mittig, F. Montes, D. J. Morrissey, J. Pereira, H. Schatz, J. Schatz, M. Scott, D. Shapira, K. Smith, J. Stevens, W. Tan, O. Tarasov, S. Towers, K. Wimmer, J. R. Winkelbauer, J. Yurkon, R. G. T. Zegers
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Accepted for publication as a Rapid Communication in Physical Review C
We present mass excesses (ME) of neutron-rich isotopes of Ar through Fe, obtained via TOF-$Bρ$ mass spectrometry at the National Superconducting Cyclotron Laboratory. Our new results have significantly reduced systematic uncertainties relative to a prior analysis, enabling the first determination of ME for $^{58,59}{\rm Ti}$, $^{62}{\rm V}$, $^{65}{\rm Cr}$, $^{67,68}{\rm Mn}$, and $^{69,70}{\rm Fe}$. Our results show the $N=34$ subshell weaken at Sc and vanish at Ti, along with the absence of an $N=40$ subshell at Mn. This leads to a cooler accreted neutron star crust, highlighting the connection between the structure of nuclei and neutron stars.
Long-lived opposite-parity states and the onset of octupole collectivity in atomic nuclei
San Diego State University（圣地亚哥州立大学）；Ho Chi Minh City University of Education（胡志明市教育大学）；Institute for Basic Science（基础科学研究院）；Tel Aviv University（特拉维夫大学）
From closed shells to open shells: Coupled-cluster calculations of atomic nuclei
Johannes Gutenberg-Universität Mainz（美因茨约翰内斯·古腾堡大学）；Facility for Rare Isotope Beams, Michigan State University（密歇根州立大学稀有同位素束设施）；Oak Ridge National Laboratory（橡树岭国家实验室）；Université Libre de Bruxelles（布鲁塞尔自由大学）；KU Leuven（荷语鲁汶大学）；Helmholtz-Institut Mainz（美因茨亥姆霍兹研究所）；CEA, Université Paris-Saclay（法国原子能和替代能源委员会，巴黎萨克雷大学）；University of Tennessee（田纳西大学）
Facility for Rare Isotope Beams, Michigan State University（密歇根州立大学稀有同位素束设施）；Physics Division, Oak Ridge National Laboratory（橡树岭国家实验室物理部）；Department of Physics and Astronomy, University of Tennessee, Knoxville（田纳西大学诺克斯维尔分校物理与天文学系）
Heisenberg Uncertainty Inequality and Breaking of Isospin Symmetry in Atomic Nuclei
Pitaevskii BEC Center, CNR-INO（皮塔耶夫斯基玻色-爱因斯坦凝聚中心，意大利国家研究委员会红外光学研究所）；Trento Institute for Fundamental Physics and Applications, INFN（特伦托基础物理与应用研究所，意大利国家核物理研究所）
Microscopic study of low-lying states in odd-mass nuclei for atomic electric dipole moment searches
School of Physics and Astronomy, Sun Yat-sen University（中山大学物理学院）；Guangdong Provincial Key Laboratory of Quantum Metrology and Sensing, Sun Yat-Sen University（中山大学广东省量子计量与传感重点实验室）
Hidden pseudospin and spin symmetries and their origins in atomic nuclei
对称性在物理学中起着基础性的作用。单粒子轨道$(n, l, j = l + 1/2)$和$(n-1, l + 2, j = l + 3/2)$之间的准简并性表明了原子核中隐藏的对称性，即所谓的赝自旋对称性（PSS）。自从在原子核中引入PSS的概念以来，人们一直在努力理解它的起源。自旋二重态和赝自旋二重态的分裂在放射性离子束光谱研究中发现的奇异核幻数演化中起着关键作用。自上世纪90年代PSS被认为是一种相对论性对称以来，人们提出了许多新的概念，包括反核子的自旋对称性（SS）。综述了近年来在不同体系和势中PSS和SS的研究进展，包括PSS研究从稳定核到奇异核、从非限制势到限制势、从定域势到非定域势、从中心势到张量势、从束缚态到共振态、从核子谱到反核子谱、从核子谱到超子谱、从球形核到形变核的扩展.对这一领域的一些开放性问题也进行了详细的讨论，包括微扰性质、具有相似性的超对称表示重整化群和入侵态之谜。
