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Isotope shift of the 2 /sup 3/P-3 /sup 3/D transition in helium

Journal Article · · Phys. Rev., A; (United States)
The isotope shift of the transition 2 /sup 3/P-3 /sup 3/D between /sup 3/He and /sup 4/He is measured to an accuracy of 3 parts in 10/sup 3/ using the technique of Doppler-free intermodulated fluorescence spectroscopy. The hyperfine structure of /sup 3/He in the 2 /sup 3/P and 3 /sup 3/D states is fully resolved and is fit to a magnetic-interaction hyperfine Hamiltonian. After removing the hyperfine interaction and assuming no specific isotope shift in the 3 /sup 3/D state, the measured iostope shift agrees with theoretical values when variational wave functions are used to compute the specific mass shift of the 2 /sup 3/P term.
Research Organization:
Bell Laboratories, Holmdel, New Jersey 07733
OSTI ID:
5051756
Journal Information:
Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:4; ISSN PLRAA
Country of Publication:
United States
Language:
English