Isotope-shift measurements of stable and short-lived lithium isotopes for nuclear-charge-radii determination

被引：55

作者：

Noertershaeuser, W. ^{[1
,2
]}

Sanchez, R. ^{[1
,2
]}

Ewald, G. ^{[1
]}

Dax, A. ^{[1
]}

Behr, J. ^{[3
]}

Bricault, P. ^{[3
]}

Bushaw, B. A. ^{[4
]}

Dilling, J. ^{[3
]}

Dombsky, M. ^{[3
]}

Drake, G. W. F. ^{[5
]}

Goette, S. ^{[1
]}

Kluge, H. -J. ^{[1
]}

Kuehl, Th. ^{[1
]}

Lassen, J. ^{[3
]}

Levy, C. D. P. ^{[3
]}

Pachucki, K. ^{[6
]}

Pearson, M. ^{[3
]}

Puchalski, M. ^{[7
]}

Wojtaszek, A. ^{[1
]}

Yan, Z. -C. ^{[8
]}

Zimmermann, C. ^{[9
]}

机构：

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

[2] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55099 Mainz, Germany

[3] TRIUMF, Vancouver, BC V6T 2A3, Canada

[4] Pacific NW Natl Lab, Richland, WA 99352 USA

[5] Univ Windsor, Dept Phys, Windsor, ON N9B 3P4, Canada

[6] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland

[7] Adam Mickiewicz Univ, Fac Chem, PL-60780 Poznan, Poland

[8] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada

[9] Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW A | 2011年 / 83卷 / 01期

关键词：

HYPERFINE-STRUCTURE; LASER SPECTROSCOPY; VARIATIONAL CALCULATIONS; RECOIL CORRECTIONS; QUADRUPOLE-MOMENT; 1S-2S TRANSITION; RESONANCE LINES; ENERGY-LEVELS; FREQUENCY; HELIUM;

D O I：

10.1103/PhysRevA.83.012516

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Changes in the mean square nuclear charge radii along the lithium isotopic chain were determined using a combination of precise isotope shift measurements and theoretical atomic structure calculations. Nuclear charge radii of light elements are of high interest due to the appearance of the nuclear halo phenomenon in this region of the nuclear chart. During the past years we have developed a laser spectroscopic approach to determine the charge radii of lithium isotopes which combines high sensitivity, speed, and accuracy to measure the extremely small field shift of an 8-ms-lifetime isotope with production rates on the order of only 10 000 atoms/s. The method was applied to all bound isotopes of lithium including the two-neutron halo isotope Li-11 at the on-line isotope separators at GSI, Darmstadt, Germany, and at TRIUMF, Vancouver, Canada. We describe the laser spectroscopic method in detail, present updated and improved values from theory and experiment, and discuss the results.

引用

页数：33

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