Abstract

Measuring the hydrogen-deuterium isotope shift via two-photon spectroscopy of the 1S-2S transition, we obtain 670994334606(15) Hz. This is a 10-times improvement over the previous best measurement confirming its frequency value. a calculation of the difference of the mean square charge radii of deuterium and hydrogen results in r2d-r2 p=3.82007(65)fm2, a more than twofold improvement compared to the former value.

Department(s)

Physics

Sponsor(s)

Marie Curie Intra European Grant
Max Planck Foundation
National Institute of Standards and Technology
National Science Foundation (U.S.)
RSSF

Keywords and Phrases

Isotope Shifts; Mean Square; Precision Measurement; Two-Photon Spectroscopy

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2010 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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