Gamow-shell-model description of Li isotopes and their mirror partners

doi:10.1103/PhysRevC.102.024309

	Gamow-shell-model description of Li isotopes and their mirror partners
	Mao, X.1,2; Rotureau, J.1; Nazarewicz, W.2,3; Michel, N.4; Betan, R. M. Id 5,6; Jaganathen, Y.7
刊名	PHYSICAL REVIEW C
	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.
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关键词	LIGHT-NUCLEI ; STATES ; CONTINUUM ; LI-10 ; POPULATION ; RESONANCES
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000557941400005
资助机构	U.S. Department of Energy, Office of Science, Office of Nuclear Physics ; International Scientific Cooperation Conicet-NSF
内容类型	期刊论文
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.