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RESEARCH PRODUCT
Reinterpretation of Classic Proton Charge Form Factor Measurements
Miha MihovilovičMiha MihovilovičMiha MihovilovičDouglas W. HiginbothamMelisa BevcSimon ŠIrcaSimon ŠIrcasubject
ProtonMaterials Science (miscellaneous)BiophysicsFOS: Physical sciencesGeneral Physics and Astronomy01 natural sciences0103 physical sciencesPadé approximantNuclear Experiment (nucl-ex)Physical and Theoretical Chemistry010306 general physicsform factorsNuclear ExperimentMathematical PhysicsPhysicsForm factor (quantum field theory)Function (mathematics)Radiuslcsh:QC1-999Computational physicsDipolecharge radiuselectron scatteringPhysics - Data Analysis Statistics and Probabilitystatistical methodsElectron scatteringlcsh:PhysicsData Analysis Statistics and Probability (physics.data-an)protonSign (mathematics)description
In 1963, a proton radius of $0.805(11)~\mathrm{fm}$ was extracted from electron scattering data and this classic value has been used in the standard dipole parameterization of the form factor. In trying to reproduce this classic result, we discovered that there was a sign error in the original analysis and that the authors should have found a value of $0.851(19)~\mathrm{fm}$. We additionally made use of modern computing power to find a robust function for extracting the radius using this 1963 data's spacing and uncertainty. This optimal function, the Pad\'{e} $(0,1)$ approximant, also gives a result which is consistent with the modern high precision proton radius extractions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-02-01 | Frontiers in Physics |