PRECISION-MEASUREMENT OF THE ISOTOPE SHIFT OF THE 2 S-3(1)-3 P-3(0) TRANSITION IN HELIUM

Authors
MARIN F MINARDI F PAVONE FS INGUSCIO M
Citation
F. Marin et al., PRECISION-MEASUREMENT OF THE ISOTOPE SHIFT OF THE 2 S-3(1)-3 P-3(0) TRANSITION IN HELIUM, Physical review. A, 49(3), 1994, pp. 180001523-180001526
Citations number
25
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
49
Issue
3
Year of publication
1994
Pages
180001523 - 180001526
Database
ISI
SICI code
1050-2947(1994)49:3<180001523:POTISO>2.0.ZU;2-0
Abstract
A heterodyne spectroscopic scheme, using only one laser tuned to the a tomic wavelength, is applied to the measurement of the He-3(F = 1/2-1/ 2 component)He-4 separation for the 2 S-3(1) - P-3(0) transition at 38 9 nm. The experimental result is 45 394 425(137) kHz and the isotope s hift deduced in the absence of hyperfine structure is 42 184 180(139) kHz. A new value of the He-3 nuclear charge radius is obtained, [r2]1/ 2 = 1.923(36) fm, in a regime of low energy and momentum transfer.