Publications
Publication Information
Title | Proton charge radius extraction from electron scattering data using dispersively improved chiral effective field theory |
Authors | Douglas Higinbotham, Christian Weiss, Zhihong Ye |
JLAB number | JLAB-THY-18-2804 |
LANL number | arXiv:1809.06373 |
Other number | DOE/OR/23177-4544 |
Document Type(s) | (Journal Article) |
Associated with EIC: | No |
Supported by Jefferson Lab LDRD Funding: | No |
Funding Source: | Nuclear Physics (NP) |
Journal Compiled for Physical Review C Volume 99 Page(s) 044303 Refereed | |
Publication Abstract: | We extract the proton charge radius from the elastic form factor data using a theoretical framework combining chiral effective field theory and dispersion analysis. Complex analyticity in the momentum transfer correlates the behavior of the spacelike form factor in different Q^2 regions and permits the use of data up to Q^2 ~ 0.5 GeV^2 in constraining the radius. The predictive theory describes the data with the same accuracy as current descriptive models (global fits). We obtain a radius of 0.844(7) fm, consistent with the high-precision muonic hydrogen results. |
Experiment Numbers: | other |
Group: | THEORY CENTER |
Document: | |
DOI: | https://doi.org/10.1103/PhysRevC.99.044303 |
Accepted Manuscript: | PhysRevC.99.044303.pdf |
Supporting Documents: | |
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