Accurate Measurement of the 2{sup 3}{ital S}{sub 1}-3{sup 3}{ital D}{sub {ital 1}} Two-Photon Transition Frequency in Helium: New Determination of the 2{sup 3}{ital S}{sub {ital 1}} Lamb Shift
Journal Article
·
· Physical Review Letters
- Laboratoire Kastler Brossel, Ecole Normale Superieure Universite Pierre et Marie Curie, Laboratoire associe au CNRS URA18, 4 Place Jussieu, Tour 12 E01, 75252 Paris Cedex 05 (France)
We have performed a precise measurement of the 2{sup 3}S{sub 1}-3{sup 3}D{sub 1} two-photon transition frequency in {sup 4}He at 762nm. The 2{sup 3}S{sub 1}-3{sup 3}D{sub 1} frequency is 786823850.002(56)MHz, with a relative uncertainty of 7.1{times}10{sup -11}. The deduced 2{sup 3}S{sub 1} Lamb shift is 4057.276(60)MHz. This result, the most accurate at the present time, reduces the uncertainty in the 2{sup 3}S{sub 1} Lamb shift by 1order of magnitude and is 100times more precise than the theoretical prediction [4062.3(8.0)MHz]. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 544328
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Precision measurement of the 1{ital S} ground-state Lamb shift in atomic hydrogen and deuterium by frequency comparison
Measurement of the Lamb shift of He, 2 sup 1 S sub 0
First pure frequency measurement of an optical transition in helium: Lamb shift on the 2[sup 3][ital S][sub 1] metastable level
Journal Article
·
Sun Oct 01 00:00:00 EDT 1995
· Physical Review A
·
OSTI ID:118443
Measurement of the Lamb shift of He, 2 sup 1 S sub 0
Conference
·
Mon Aug 05 00:00:00 EDT 1991
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:7286114
First pure frequency measurement of an optical transition in helium: Lamb shift on the 2[sup 3][ital S][sub 1] metastable level
Journal Article
·
Mon Jul 04 00:00:00 EDT 1994
· Physical Review Letters; (United States)
·
OSTI ID:7272220