New precision spectroscopy of hydrogen 2S-nS transitions determines proton charge radius r_p = 0.8433(31) fm and Rydberg constant cR_∞ = 3,289,841,960,252.9(9.7) kHz.
Accurate calculation of dynamic Stark shifts and depopulation rates of Rydberg energy levels induced by blackbody radiation. Hydrogen, helium, and alkali-metal atoms
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Precision Spectroscopy of 2S-nS Transitions in Atomic Hydrogen: A Determination of the Proton Charge Radius
New precision spectroscopy of hydrogen 2S-nS transitions determines proton charge radius r_p = 0.8433(31) fm and Rydberg constant cR_∞ = 3,289,841,960,252.9(9.7) kHz.