Gamow-shell-model description of Li isotopes and their mirror partners
文献类型：期刊论文
| 作者 | Mao, X.1,2; Rotureau, J.1; Nazarewicz, W.2,3; Michel, N.4; Betan, R. M. Id5,6; Jaganathen, Y.7 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2020-08-07 |
| 卷号 | 102期号:2页码:10 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.102.024309 |
| 通讯作者 | Mao, X.() |
| 英文摘要 | Background: Weakly bound and unbound nuclei close to particle drip lines are laboratories of new nuclear structure physics at the extremes of neutron/proton excess. The comprehensive description of these systems requires an open quantum system framework that is capable of treating resonant and nonresonant many-body states on equal footing. Purpose: In this work, we develop the complex-energy configuration interaction approach to describe binding energies and spectra of selected 5 <= A <= 11 nuclei. Method: We employ the complex-energy Gamow shell model (GSM) assuming a rigid He-4 core. The effective Hamiltonian, consisting of a core-nucleon Woods-Saxon potential and a simplified version of the Furutani-Horiuchi-Tamagaki interaction with the mass-dependent scaling, is optimized in the sp space. To diagonalize the Hamiltonian matrix, we employ the Davidson method and the Density Matrix Renormalization Group technique. Results: Our optimized GSM Hamiltonian offers a good reproduction of binding energies and spectra with the root-mean-square (rms) deviation from experiment of 160 keV. Since the model performs well when used to predict known excitations that have not been included in the fit, it can serve as a reliable tool to describe poorly known states. A case in point is our prediction for the pair of unbound mirror nuclei Li-10 - N-10 in which a huge Thomas-Ehrman shift dramatically alters the pattern of low-energy excitations. Conclusion: The new model will enable comprehensive studies of structure and reactions aspects of light drip-line nuclei. |
| WOS关键词 | LIGHT-NUCLEI ; STATES ; CONTINUUM ; LI-10 ; POPULATION ; RESONANCES |
| 资助项目 | U.S. Department of Energy, Office of Science, Office of Nuclear Physics[DE-SC0013365] ; U.S. Department of Energy, Office of Science, Office of Nuclear Physics[DE-SC0018083] ; International Scientific Cooperation Conicet-NSF[1225-17] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000557941400005 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | U.S. Department of Energy, Office of Science, Office of Nuclear Physics ; International Scientific Cooperation Conicet-NSF |
| 源URL | [http://119.78.100.186/handle/113462/139589]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Mao, X. |
| 作者单位 | 1.Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA 2.Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA 3.Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA 4.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 5.Consejo Nacl Invest Cient & Tecn, Phys Inst Rosario, Rosario, Argentina 6.UNR, Dept Phys FCEIA, Rosario, Argentina 7.Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland |
| 推荐引用方式 GB/T 7714 | Mao, X.,Rotureau, J.,Nazarewicz, W.,et al. Gamow-shell-model description of Li isotopes and their mirror partners[J]. PHYSICAL REVIEW C,2020,102(2):10. |
| APA | Mao, X.,Rotureau, J.,Nazarewicz, W.,Michel, N.,Betan, R. M. Id,&Jaganathen, Y..(2020).Gamow-shell-model description of Li isotopes and their mirror partners.PHYSICAL REVIEW C,102(2),10. |
| MLA | Mao, X.,et al."Gamow-shell-model description of Li isotopes and their mirror partners".PHYSICAL REVIEW C 102.2(2020):10. |
入库方式： OAI收割
来源：近代物理研究所
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