Nuclear charge radii of potassium isotopes beyond N=28

被引：76

作者：

Kreim, K. ^{[1
]}

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

Papuga, J. ^{[2
]}

Blaum, K. ^{[1
]}

De Rydt, M. ^{[2
]}

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

Goriely, S. ^{[3
]}

Heylen, H. ^{[2
]}

Kowalska, M. ^{[4
]}

Neugart, R. ^{[1
,5
]}

Neyens, G. ^{[2
]}

Noertershaeuser, W. ^{[5
,6
]}

Rajabali, M. M. ^{[2
]}

Alarcon, R. Sanchez ^{[7
,8
]}

Stroke, H. H. ^{[9
]}

Yordanov, D. T. ^{[1
,4
]}

机构：

[1] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

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

[3] Univ Libre Brussels, Inst Astron & Astrophys, B-1050 Brussels, Belgium

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

[5] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany

[6] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[7] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany

[8] Helmholtz Inst Mainz, D-55099 Mainz, Germany

[9] NYU, Dept Phys, New York, NY 10003 USA

来源：

PHYSICS LETTERS B | 2014年 / 731卷

关键词：

Isotope shift; Nuclear charge radius; Potassium; Collinear laser spectroscopy; COLLINEAR LASER SPECTROSCOPY; SHELL-MODEL DESCRIPTION; ION-BEAMS; SHIFTS; CALCIUM; MOMENTS; FORCES;

D O I：

10.1016/j.physletb.2014.02.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the measurement of optical isotope shifts for K-38,K-39,K-42,K-44,K-46-51 relative to K-47 from which changes in the nuclear mean square charge radii across the N = 28 shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from K-37 to K-51, covering all vf(7/2)-shell as well as all vp(3/2)-shell nuclei. These measurements, in conjunction with those of Ca, Cr, Mn and Fe, provide a first insight into the Z dependence of the evolution of nuclear size above the shell closure at N = 28. (C) 2014 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (hup://creativecommons,org/licenses/by/3.0/).

引用

页码：97 / 102

页数：6

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