Isotope-shift factors with quantum electrodynamics effects for many-electron systems: A study of the nuclear charge radius of 26mAl

被引：2

作者：

Skripnikov, Leonid, V ^{[1
,2
]}

Prosnyak, Sergey D. ^{[1
,2
]}

Malyshev, Aleksei, V ^{[1
,2
]}

Athanasakis-Kaklamanakis, Michail ^{[3
,4
]}

Brinson, Alex Jose ^{[5
]}

Minamisono, Kei ^{[6
,7
]}

Cruz, Fabian C. Pastrana ^{[5
]}

Reilly, Jordan Ray ^{[8
]}

Rickey, Brooke J. ^{[6
,7
]}

Ruiz, Ronald. F. Garcia ^{[5
,9
]}

机构：

[1] Petersburg Nucl Phys Inst, Natl Res Ctr Kurchatov Inst, Natl Res Ctr, Gatchina 188300, Leningrad Dist, Russia

[2] St Petersburg State Univ, Dept Phys, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia

[3] Imperial Coll London, Ctr Cold Matter, London SW7 2AZ, England

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

[5] MIT, Dept Phys, Cambridge, MA 02139 USA

[6] Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA

[7] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[8] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, England

[9] MIT, Lab Nucl Sci, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW A | 2024年 / 110卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

RELATIVISTIC DOUBLE-ZETA; HYDROGEN-LIKE ATOMS; COUPLED-CLUSTER; ENERGY-LEVELS; SELF-ENERGY; RADIATIVE CORRECTION; RECOIL CORRECTIONS; TRIPLE-ZETA; BASIS-SETS; TESTS;

D O I：

10.1103/PhysRevA.110.012807

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method for calculating the field shift contribution to isotope shifts (IS) in many-electron atoms, incorporating quantum electrodynamics (QED) effects, is introduced. We also implement the model QED approach to incorporate QED contribution to the nuclear recoil effect at the high-order correlation effects treatment level. The proposed computational scheme is used to revise the value of the root-mean-square (rms) nuclear charge radius of the isomer of aluminum-26, 26mAl. This radius is important for the global analysis of the Vud element of the Cabibbo-Kobayashi-Maskawa matrix. The difference in mean-square nuclear charge radii of 27Al and 26mAl, obtained by combining the calculated atomic factors with recently measured isotope shift of of the 3s23p 2P3/2 -> 3s24s 2S1/2 transition in Al, is 0.443(44)(19) fm2, where the first and second uncertainties are experimental and theoretical ones, respectively. The latter is reduced by a factor of 4 with respect to the previous study. Using this value and the known value of the rms charge radius of 27Al, the resultant value Rc(26mAl) = 3.132(10) fm is obtained. With the improved accuracy of the calculated IS factors, the error in Rc(26mAl) is now dominated by the experimental uncertainty. Similar revision of rms charge radii is made for the 28Al, 29Al, 30Al, 31Al, and 32Al isotopes using existing IS measurements. Additionally, atomic factors are computed for the 3s23p 2P3/2 -> 3s24s 2S1/2, 3s23p 2P1/2 -> 3s25s 2S1/2, and 3s23p 2P3/2 -> 3s25s 2S1/2 transitions in Al, which can be used in future experimental studies.

引用

页数：14