Hyperfine structure of the 2s state of /sup 3/He/sup +/

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.16.6· OSTI ID:7094128

Prior, M H; Wang, E C

Using an electrostatic ion-storage device and a microwave state-selection technique, we have measured the hyperfine structure ..delta nu../sub 2/ of the 2s state of /sup 3/He/sup +/. Our result is ..delta nu../sub 2/ = 1083.354 980 7(88) MHz (the equivalent uncertainty is 0.009 ppm). When combined with the 1s-state hyperfine structure ..delta nu../sub 1/ to make the quantity D/sub 21/ (defined as 8..delta nu../sub 2/ - ..delta nu../sub 1/), we obtain D/sub 21/(experiment) = 1.189 979(71) MHz. Current theory produces D/sub 21/(theory) = 1.189 801(1) MHz. The 178(71) Hz difference may arise from a combination of quantum-electrodynamic and nuclear structure effects which remain to be treated theoretically.

• Research Organization: University of California, Lawrence Berkeley Laboratory, Berkeley, California 94720
• OSTI ID: 7094128
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 16:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC IONS
CHARGED PARTICLES
ENERGY LEVELS
EVEN-ODD NUCLEI
EXCITED STATES
HELIUM 3
HELIUM IONS
HELIUM ISOTOPES
HYPERFINE STRUCTURE
IONS
ISOTOPES
LIGHT NUCLEI
NUCLEI
S STATES
STABLE ISOTOPES