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A new calculation of the electron's self-energy improves determination of fundamental constants
Conventional quantum mechanics didn't have such transitions ... on previous two-loop calculations of the electron self-energy that reduces the 1S–2S Lamb shift in hydrogen by a frequency ...
Nature26d
Particle physics articles from across Nature Portfolio
This includes leptons (such as the electron), the quarks that make ... reports measurements of the hyperfine components of the 1S–2S transition in trapped antihydrogen. They interpret the ...