Electromagnetic properties of indium isotopes illuminate the doubly magic character of 100Sn

被引：0

作者：

J. Karthein ^{[1
]}

C. M. Ricketts ^{[2
]}

R. F. Garcia Ruiz ^{[1
]}

J. Billowes ^{[2
]}

C. L. Binnersley ^{[3
]}

T. E. Cocolios ^{[2
]}

J. Dobaczewski ^{[2
]}

G. J. Farooq-Smith ^{[4
]}

K. T. Flanagan ^{[5
]}

G. Georgiev ^{[6
]}

W. Gins ^{[4
]}

R. P. de Groote ^{[18
]}

F. P. Gustafsson ^{[2
]}

J. D. Holt ^{[7
]}

A. Kanellakopoulos ^{[4
]}

Á. Koszorús ^{[4
]}

D. Leimbach ^{[4
]}

K. M. Lynch ^{[8
]}

T. Miyagi ^{[9
]}

W. Nazarewicz ^{[4
]}

G. Neyens ^{[4
]}

P.-G. Reinhard ^{[3
]}

B. K. Sahoo ^{[10
]}

A. R. Vernon ^{[2
]}

S. G. Wilkins ^{[3
]}

X. F. Yang ^{[11
]}

D. T. Yordanov ^{[12
]}

机构：

[1] Massachusetts Institute of Technology,Department of Physics and Astronomy & Photon Science Institute

[2] The University of Manchester,KU Leuven

[3] CERN,School of Physics, Engineering and Technology

[4] Instituut voor Kern – en Stralingsfysica,Institute of Theoretical Physics, Faculty of Physics

[5] University of York,IJCLab, CNRS/IN2P3

[6] University of Warsaw,Department of Physics

[7] Université Paris-Saclay,Department of Physics

[8] TRIUMF,Technische Universität Darmstadt

[9] McGill University,ExtreMe Matter Institute EMMI

[10] The University of Gothenburg,Facility for Rare Isotope Beams & Department of Physics and Astronomy

[11] Department of Physics,Institut für Theoretische Physik

[12] GSI Helmholtzzentrum für Schwerionenforschung GmbH,Atomic, Molecular and Optical Physics Division

[13] Max-Planck-Institut für Kernphysik,School of Physics and State Key Laboratory of Nuclear Physics and Technology

[14] Michigan State University,Department of Oncology Physics, Edinburgh Cancer Centre

[15] Friedrich-Alexander-Universität,Center for Computational Sciences

[16] Physical Research Laboratory,undefined

[17] Peking University,undefined

[18] Western General Hospital,undefined

[19] University of Tsukuba,undefined

[20] Massachusetts Institute of Technology,undefined

来源：

Nature Physics | 2024年 / 20卷 / 11期

关键词：

D O I：

10.1038/s41567-024-02612-y

中图分类号：

学科分类号：

摘要：

Understanding the nuclear properties in the vicinity of 100Sn, which has been suggested to be the heaviest doubly magic nucleus with proton number Z equal to neutron number N, has been a long-standing challenge for experimental and theoretical nuclear physics. In particular, contradictory experimental evidence exists regarding the role of nuclear collectivity in this region of the nuclear chart. Here, we provide further evidence for the doubly magic character of 100Sn by measuring the ground-state electromagnetic moments and nuclear charge radii of indium (Z = 49) isotopes as N approaches 50 from above using precision laser spectroscopy. Our results span almost the complete range between the two major closed neutron shells at N = 50 and N = 82 and reveal parabolic trends as a function of the neutron number, with a clear reduction towards these two closed neutron shells. A detailed comparison between our experimental results and numerical results from two complementary nuclear many-body frameworks (density functional theory and ab initio methods) exposes deficiencies in nuclear models and establishes a benchmark for future theoretical developments.

引用

页码：1719 / 1725

页数：6

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