Theory of the Helium Isotope Shift

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Journal of Physical and Chemical Reference Data

DOI:https://doi.org/10.1063/1.4921428· OSTI ID:22413366

Pachucki, Krzysztof ^[1]; Yerokhin, V. A. ^[2]

---

1. Institute of Theoretical Physics, University of Warsaw, Pasteura 5, 02–093 Warsaw (Poland)
2. Center for Advanced Studies, St. Petersburg State Polytechnical University, Polytekhnicheskaya 29, St. Petersburg 195251 (Russian Federation)

Theory of the isotope shift of the centroid energies of light few-electron atoms is reviewed. Numerical results are presented for the isotope shift of the 2{sup 3}P-2{sup 3}S and 2{sup 1}S-2{sup 3}S transition energies of {sup 3}He and {sup 4}He. By comparing theoretical predictions for the isotope shift with the experimental results, the difference of the squares of the nuclear charge radii of {sup 3}He and {sup 4}He, δR{sup 2}, is determined with high accuracy.

• OSTI ID: 22413366
• Journal Information: Journal of Physical and Chemical Reference Data, Vol. 44, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0047-2689
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ATOMS
COMPARATIVE EVALUATIONS
ELECTRONS
HELIUM 3
HELIUM 4
NUCLEAR RADII
P STATES
S STATES
VISIBLE RADIATION