| Mass Measurement of Upper fp -Shell N=Z-2 and N=Z-1 Nuclei and the Importance of Three-Nucleon Force along the N=Z Line | |
| 2023-05-12 | |
| Source Publication | PHYSICAL REVIEW LETTERS Impact Factor & Quartile |
| ISSN | 0031-9007 |
| Volume | 130Issue:19 |
| Abstract | Using a novel method of isochronous mass spectrometry, the masses of Ge62, As64, Se66, and Kr70 are measured for the first time, and the masses of Zn58, Ga61, Ge63, As65, Se67, Kr71, and Sr75 are redetermined with improved accuracy. The new masses allow us to derive residual proton-neutron interactions (δVpn) in the N=Z nuclei, which are found to decrease (increase) with increasing mass A for even-even (odd-odd) nuclei beyond Z=28. This bifurcation of δVpn cannot be reproduced by the available mass models, nor is it consistent with expectations of a pseudo-SU(4) symmetry restoration in the fp shell. We performed ab initio calculations with a chiral three-nucleon force (3NF) included, which indicate the enhancement of the T=1 pn pairing over the T=0 pn pairing in this mass region, leading to the opposite evolving trends of δVpn in even-even and odd-odd nuclei. © 2023 American Physical Society. |
| Keyword | Germanium compounds Selenium compounds Ab initio calculations Mass measurements Mass models Mass regions Measurements of Novel methods Odd-odd nucleus Proton-neutron interaction Three-nucleon forces (3NF) |
| Publisher | American Physical Society |
| DOI | 10.1103/PhysRevLett.130.192501 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20232114125871 |
| EI Keywords | Mass spectrometry |
| EI Classification Number | 801 Chemistry |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/529173 |
| Collection | 核科学与技术学院 |
| Affiliation | 1.CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou; 730000, China; 2.School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing; 100049, China; 3.School of Nuclear Science and Technology, Lanzhou University, Lanzhou; 730000, China; 4.Frontiers Science Center for Rare Isotope, Lanzhou University, Lanzhou; 730000, China; 5.Advanced Energy Science and Technology Guangdong Laboratory, Huizhou; 516007, China; 6.State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing; 100871, China; 7.GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, Darmstadt; 64291, Germany; 8.Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg; 69117, Germany; 9.Institute of Nuclear and Particle Physics, Department of Physics and Astronomy, Ohio University, Athens; OH; 45701, United States; 10.Wright Nuclear Structure Laboratory, Yale University, New Haven; CT; 06520-8124, United States; 11.Department of Physics, Istanbul University, Istanbul; 34134, Turkey; 12.School of Nuclear Science and Engineering, East China University of Technology, Nanchang; 330013, China |
| Recommended Citation GB/T 7714 | Wang, M.,Zhang, Y.H.,Zhou, X.,et al. Mass Measurement of Upper fp -Shell N=Z-2 and N=Z-1 Nuclei and the Importance of Three-Nucleon Force along the N=Z Line[J]. PHYSICAL REVIEW LETTERS,2023,130(19). |
| APA | Wang, M..,Zhang, Y.H..,Zhou, X..,Zhou, X.H..,Xu, H.S..,...&Zhang, M..(2023).Mass Measurement of Upper fp -Shell N=Z-2 and N=Z-1 Nuclei and the Importance of Three-Nucleon Force along the N=Z Line.PHYSICAL REVIEW LETTERS,130(19). |
| MLA | Wang, M.,et al."Mass Measurement of Upper fp -Shell N=Z-2 and N=Z-1 Nuclei and the Importance of Three-Nucleon Force along the N=Z Line".PHYSICAL REVIEW LETTERS 130.19(2023). |
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