Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z=28 shell closure near 78Ni

被引：40

作者：

de Groote, R. P. ^{[1
]}

Billowes, J. ^{[2
]}

Binnersley, C. L. ^{[2
]}

Bissell, M. L. ^{[2
]}

Cocolios, T. E. ^{[1
]}

Goodacre, T. Day ^{[3
]}

Farooq-Smith, G. J. ^{[1
]}

Fedorov, D. V. ^{[4
]}

Flanagan, K. T. ^{[2
]}

Franchoo, S. ^{[5
]}

Ruiz, R. F. Garcia ^{[2
]}

Koszorus, A. ^{[1
]}

Lynch, K. M. ^{[6
]}

Neyens, G. ^{[1
,6
]}

Nowacki, F. ^{[7
]}

Otsuka, T. ^{[1
,8
,9
,10
]}

Rothe, S. ^{[2
,3
]}

Stroke, H. H. ^{[11
]}

Tsunoda, Y. ^{[10
]}

Vernon, A. R. ^{[2
]}

Wendt, K. D. A. ^{[12
]}

Wilkins, S. G. ^{[2
]}

Xu, Z. Y. ^{[1
]}

Yang, X. F. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Leuven, Belgium

[2] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England

[3] CERN, Engn Dept, CH-1211 Geneva 23, Switzerland

[4] Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[5] Inst Phys Nucl Orsay, F-91406 Orsay, France

[6] CERN, Phys Dept, CH-1211 Geneva 23, Switzerland

[7] Inst Pluridisciplinaire Hubert Curien, 23 Rue Loess, F-67037 Strasbourg 2, France

[8] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[9] RIKEN Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[10] Univ Tokyo, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan

[11] New York Univ, Dept Phys, New York, NY 10003 USA

[12] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany

来源：

PHYSICAL REVIEW C | 2017年 / 96卷 / 04期

基金：

英国科学技术设施理事会;

关键词：

NUCLEAR-STRUCTURE; MAGNETIC DIPOLE; SPECTROSCOPY; ISOTOPES; FEATURES; ISOLDE; CU-63; LASER;

D O I：

10.1103/PhysRevC.96.041302

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：

Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground states of neutron-rich Cu73-78 isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. The nuclear moments of the less exotic Cu-73,Cu-75 isotopes were remeasured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and Cu-78(29) (N = 49) in particular, are used to investigate excitations of the assumed doublymagic Ni-78 core through comparisons with large-scale shell-model calculations. Despite the narrowing of the Z = 28 shell gap between N similar to 45 and N = 50, themagicity of Z = 28 and N = 50 is restored toward Ni-78. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.

引用

页数：6

共 11 条

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