Global analysis of parity-violating asymmetry data for elastic electron scattering
Name
PhysRevD.90.033002.pdf
Size
2.87 MB
Format
Adobe PDF
Checksum (MD5)
3b5355a9fbe3555a770b0e52e007794e
Author(s)
Caballero, J. A.
Gonzalez-Jimenez, R.
Donnelly, T William
Date Issued
August 2014
Journal
Physical Review D
Publisher
American Physical Society
Citation
Gonzalez-Jimenez, R., J. A. Caballero, and T. W. Donnelly. "Global analysis of parity-violating asymmetry data for elastic electron scattering." Phys. Rev. D 90, 033002 (August 2014). © 2014 American Physical Society
Version
Final published version
Abstract
We perform a statistical analysis of the full set of parity-violating asymmetry data for elastic electron scattering including the most recent high precision measurement from Q-weak. Given the basis of the present analysis, our estimates appear to favor nonzero vector strangeness, specifically, positive (negative) values for the electric (magnetic) strange form factors. We also provide an accurate estimate of the axial-vector nucleon form factor at zero momentum transfer, G[ep over A](0). Our study shows G[ep over A](0) to be importantly reduced with respect to the currently accepted value. We also find our analysis of data to be compatible with the Standard Model values for the weak charges of the proton and neutron.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.90.033002
