The existence and importance of the proton radius puzzle, observed via a Lamb shift measurement in muonic atoms, is discussed. Possible resolutions of the puzzle are discussed. Then the broader question of the meaning of the proton radius is addressed and examples of correctly defined charge densities are presented.
|Original language||English (US)|
|Number of pages||10|
|State||Published - May 2012|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics