Proton rms-radii from low-q power expansions?
Abstract
Several recent publications claim that the proton charge rms-radius resulting from the analysis of electron scattering data restricted to low momentum transfer agrees with the radius determined from muonic hydrogen, in contrast to the radius resulting from analyses of the full (e,e) data set which is 0.04fm larger. Here we show why these publications erroneously arrive at the low radii.
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