Revisiting the proton-radius problem using constrained Gaussian processes

17 Aug 2018Shuang ZhouP. GiulianiJ. PiekarewiczAnirban BhattacharyaDebdeep Pati

Background: The "proton radius puzzle" refers to an eight-year old problem that highlights major inconsistencies in the extraction of the charge radius of the proton from muonic Lamb-shift experiments as compared against experiments using elastic electron scattering. For the latter, the determination of the charge radius involves an extrapolation of the experimental form factor to zero momentum transfer... (read more)

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