Realistic shell model calculations for shell evolution near 78Ni

被引：0

作者：

Wang, X. P.

Li, J. G. ^{[1
]}

Chen, N.

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW C | 2025年 / 111卷 / 04期

基金：

中国国家自然科学基金;

关键词：

NUCLEAR; ISOTOPES;

D O I：

10.1103/PhysRevC.111.044308

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The study of shell structure evolution in nuclei with extreme N/Z ratios, particularly in those near the doubly magic nucleus 78Ni, is a significant topic in nuclear structure. In this work, we employed the realistic shell model to calculate the low-lying spectra of neutron-rich odd-mass 69-79Cu isotopes and N = 49 isotones, including 77Ni, 79Zn, 81Ge, 83Se, and 85Kr, all situated in the vicinity of 78Ni. Our calculations successfully reproduced the low-lying spectra of neutron-rich Cu isotopes, especially for the ground state inversion from 3/2- to 5/2- states when transitioning from 69Cu to 79Cu. Moreover, the shell evolution related to the proton 1p3/2 and 0 f5/2 orbits is investigated via the calculated effective single-particle energies. The low-lying intruder states and shape coexistence that appear in N = 49 isotones are also well reproduced in our calculations. Additionally, the average occupations of valence neutrons and the g factors of low-lying states are presented to further investigate the exotic properties of N = 49 isotones. The results are in good agreement with experimental data and suggest a weakening of the N = 50 shell closure around Z = 32 and 34.

引用

页数：7

共 58 条

[1] Direct neutron capture cross section on 80Ge and probing shape coexistence in neutron-rich nuclei [J].

Ahn, S. ;

Bardayan, D. W. ;

Jones, K. L. ;

Adekola, A. S. ;

Arbanas, G. ;

Blackmon, J. C. ;

Chae, K. Y. ;

Chipps, K. A. ;

Cizewski, J. A. ;

Hardy, S. ;

Howard, M. E. ;

Kozub, R. L. ;

Manning, B. ;

Matos, M. ;

Nesaraja, C. D. ;

O'Malley, P. D. ;

Pain, S. D. ;

Peters, W. A. ;

Pittman, S. T. ;

Rasco, B. C. ;

Smith, M. S. ;

Spassova, I .

PHYSICAL REVIEW C, 2019, 100 (04)

[2] N=14 shell closure in 22O viewed through a neutron sensitive probe -: art. no. 012501 [J].

Becheva, E ;

Blumenfeld, Y ;

Khan, E ;

Beaumel, D ;

Daugas, JM ;

Delaunay, F ;

Demonchy, CE ;

Drouart, A ;

Fallot, M ;

Gillibert, A ;

Giot, L ;

Grasso, M ;

Keeley, N ;

Kemper, KW ;

Khoa, DT ;

Lapoux, V ;

Lima, V ;

Musumarra, A ;

Nalpas, L ;

Pollacco, EC ;

Roig, O ;

Roussel-Chomaz, P ;

Sauvestre, JE ;

Scarpaci, JA ;

Skaza, F ;

Than, HS .

PHYSICAL REVIEW LETTERS, 2006, 96 (01)

[3] Cu charge radii reveal a weak sub-shell effect at N=40 [J].

Bissell, M. L. ;

Carette, T. ;

Flanagan, K. T. ;

Vingerhoets, P. ;

Billowes, J. ;

Blaum, K. ;

Cheal, B. ;

Fritzsche, S. ;

Godefroid, M. ;

Kowalska, M. ;

Kraemer, J. ;

Neugart, R. ;

Neyens, G. ;

Noertershaeuser, W. ;

Yordanov, D. T. .

PHYSICAL REVIEW C, 2016, 93 (06)

[4] STATES IN KR-85 FROM KR-84(D,P) REACTION [J].

BROWNE, CP ;

OLSEN, DK ;

CHAO, J ;

RILEY, PJ .

PHYSICAL REVIEW C, 1974, 9 (05) :1831-1838

[5] The shell model as a unified view of nuclear structure [J].

Caurier, E ;

Martínez-Pinedo, G ;

Nowacki, F ;

Poves, A ;

Zuker, AP .

REVIEWS OF MODERN PHYSICS, 2005, 77 (02) :427-488

[6] Effective shell-model hamiltonians from realistic nucleon-nucleon potentials within a perturbative approach [J].

Coraggio, L. ;

Covello, A. ;

Gargano, A. ;

Itaco, N. ;

Kuo, T. T. S. .

ANNALS OF PHYSICS, 2012, 327 (09) :2125-2151

[7] Quadrupole Collectivity in Neutron-Rich Fe and Cr Isotopes [J].

Crawford, H. L. ;

Clark, R. M. ;

Fallon, P. ;

Macchiavelli, A. O. ;

Baugher, T. ;

Bazin, D. ;

Beausang, C. W. ;

Berryman, J. S. ;

Bleuel, D. L. ;

Campbell, C. M. ;

Cromaz, M. ;

de Angelis, G. ;

Gade, A. ;

Hughes, R. O. ;

Lee, I. Y. ;

Lenzi, S. M. ;

Nowacki, F. ;

Paschalis, S. ;

Petri, M. ;

Poves, A. ;

Ratkiewicz, A. ;

Ross, T. J. ;

Sahin, E. ;

Weisshaar, D. ;

Wimmer, K. ;

Winkler, R. .

PHYSICAL REVIEW LETTERS, 2013, 110 (24)

[8] Low-lying isomeric levels in 75Cu [J].

Daugas, J. M. ;

Faul, T. ;

Grawe, H. ;

Pfuetzner, M. ;

Grzywacz, R. ;

Lewitowicz, M. ;

Achouri, N. L. ;

Angelique, J. C. ;

Baiborodin, D. ;

Bentida, R. ;

Beraud, R. ;

Borcea, C. ;

Bingham, C. R. ;

Catford, W. N. ;

Emsallem, A. ;

de France, G. ;

Grzywacz, K. L. ;

Lemmon, R. C. ;

Jimenez, M. J. Lopez ;

Santos, F. de Oliveira ;

Regan, P. H. ;

Rykaczewski, K. ;

Sauvestre, J. E. ;

Sawicka, M. ;

Stanoiu, M. ;

Sieja, K. ;

Nowacki, F. .

PHYSICAL REVIEW C, 2010, 81 (03)

[9] Nuclear Spins and Magnetic Moments of 71,73,75Cu: Inversion of π2p3/2 and π1f5/2 Levels in 75Cu [J].

Flanagan, K. T. ;

Vingerhoets, P. ;

Avgoulea, M. ;

Billowes, J. ;

Bissell, M. L. ;

Blaum, K. ;

Cheal, B. ;

De Rydt, M. ;

Fedosseev, V. N. ;

Forest, D. H. ;

Geppert, Ch. ;

Koester, U. ;

Kowalska, M. ;

Kraemer, J. ;

Kratz, K. L. ;

Krieger, A. ;

Mane, E. ;

Marsh, B. A. ;

Materna, T. ;

Mathieu, L. ;

Molkanov, P. L. ;

Neugart, R. ;

Neyens, G. ;

Noertershaeuser, W. ;

Seliverstov, M. D. ;

Serot, O. ;

Schug, M. ;

Sjoedin, M. A. ;

Stone, J. R. ;

Stone, N. J. ;

Stroke, H. H. ;

Tungate, G. ;

Yordanov, D. T. ;

Volkov, Yu. M. .

PHYSICAL REVIEW LETTERS, 2009, 103 (14)

[10] Prolate-Spherical Shape Coexistence at N=28 in 44S [J].

Force, C. ;

Grevy, S. ;

Gaudefroy, L. ;

Sorlin, O. ;

Caceres, L. ;

Rotaru, F. ;

Mrazek, J. ;

Achouri, N. L. ;

Angelique, J. C. ;

Azaiez, F. ;

Bastin, B. ;

Borcea, R. ;

Buta, A. ;

Daugas, J. M. ;

Dlouhy, Z. ;

Dombradi, Zs. ;

De Oliveira, F. ;

Negoita, F. ;

Penionzhkevich, Y. ;

Saint-Laurent, M. G. ;

Sohler, D. ;

Stanoiu, M. ;

Stefan, I. ;

Stodel, C. ;

Nowacki, F. .

PHYSICAL REVIEW LETTERS, 2010, 105 (10)

← 1 2 3 4 5 6 →