Towards a Precision Measurement of the Lamb Shift in Hydrogen-Like Nitrogen View Full Text


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Chapter Info

DATE

2001-07-11

AUTHORS

E.G. Myers , M.R. Tarbutt

ABSTRACT

Measurements of the 2S1/2-2P1/2 and 2S1/2-2P3/2 transitions in moderate Z hydrogen-like ions can test Quantum-Electrodynamic calculations relevant to the interpretation of high-precision spectroscopy of atomic hydrogen. There is now particular interest in testing calculations of the two-loop self-energy. Experimental conditions are favorable for a measurement of the 2S1/2 - 2P3/2 transition in N6+ using a carbon dioxide laser. As a preliminary experiment, we have observed the 2S1/2 - 2P3/2 transition in 14N6+ using a 2.5 MeV/amu foil-stripped ion beam and a continuous-wave CO2 laser operating on the hot band of 12C16O2. The measured value of the transition centroid, 834.94(7) cm-1, agrees with, but is less precise than theory. However, the counting rate and signal-to-background ratio obtained indicate, that with careful control of systematics, a precision test of the theory is practical. Work towards constructing such a set-up is in progress. More... »

PAGES

688-698

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/3-540-45395-4_49

DOI

http://dx.doi.org/10.1007/3-540-45395-4_49

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1048429114


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