Determination of the magnetic moment of the He/sup 3/ nucleus with an error of 2 x 10/sup -6/%

Journal Article · Wed Nov 01 00:00:00 EST 1978 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:6126850

Neronov, Y I; Barzakh, A E

The ratio of the free-precession frequencies of helions (/sup 3/He nuclei) and protons was determined for a gaseous mixture of /sup 3/He and hydrogen: f/sub /sup 3//He/f/sub H/sub 2/=0.761 786 635(4). The screening constant of the helion was calculated allowing for the motion of the nucleus relative to the center of mass of the /sup 3/He atom: sigma/sub /sup 3//He=59.924(2) x 10/sup -6/. The difference sigma/sub H/sub 2/-sigma/sub H/sub 2/O/=0.596(13) x 10/sup -6/ at 21/sup 0/ C was determined experimentally and used to find the screening of the nuclei in hydrogen. The published data on the screening of protons in water gave sigma/sub H/sub 2/=26.535(19) x 10/sup -6/. These screening constants made it possible to determine the magnetic moment of the helion in units of the magnetic moment of the proton: ..mu../sub /sup 3//He/..mu../sub p/ =-0.761 812 070(16). Next, a comparison of the magnetic moments of the lightest nuclei and hyperfine splitting of the relevant atoms was used to find the constants of the hyperfine-structure anomalies characterizing the motion of an electron inside a nucleus.

• Research Organization: B. P. Konstantinov Leningrad Institute of Nuclear Physics, Academy of Sciences of the USSR, Gatchina
• OSTI ID: 6126850
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Vol. 48:5
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HELIUM 3
NUCLEAR MAGNETIC MOMENTS
HYDROGEN
HYPERFINE STRUCTURE
NUCLEAR SCREENING
CRYOGENIC FLUIDS
ELEMENTS
EVEN-ODD NUCLEI
FLUIDS
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC MOMENTS
NONMETALS
NUCLEAR PROPERTIES
NUCLEI
SCREENING
STABLE ISOTOPES
651224* - Nuclear Properties & Reactions
A=1-5
Experimental- Moments & Spin- (-1987)