We analyze and review the theory of the hydrogen-deuterium isotope shift for the 1S-2S transition, which is one of the most accurately measured isotope shifts in any atomic system, in view of a recently improved experiment. A tabulation of all physical effects that contribute to the isotope shift is given. These include the Dirac binding energy, quantum electrodynamic effects, including recoil corrections, and the nuclear-size effect, including the pertaining relativistic and radiative corrections. From a comparison of the theoretical result Δfth=670999566.90(66)(60)kHz (exclusive of the nonrelativistic nuclear-finite-size correction) and the experimental result Δfexpt=670994334605(15) Hz, we infer the deuteron-proton charge-radius difference (r2)d- (r2)p=3.82007(65) fm2 and the deuteron structure radius rstr=1.97507(78) fm.
U. D. Jentschura et al., "Hydrogen-Deuterium Isotope Shift: From the 1S-2s-Transition Frequency to the Proton-Deuteron Charge-Radius Difference," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 83, no. 4, pp. 042505-1-042505-9, American Physical Society (APS), Apr 2011.
The definitive version is available at https://doi.org/10.1103/PhysRevA.83.042505
Keywords and Phrases
Atomic System; Isotope Shifts; Nonrelativistic; Physical Effects; Quantum Electrodynamic Effects; Radiative Corrections; Theoretical Result; Binding Energy; Deuterium; Electrodynamics; Hydrogen; Nuclear Physics; Protons; Quantum Electronics; Deuterium Compounds
International Standard Serial Number (ISSN)
Article - Journal
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