JLab Measurements of the [superscript 3]He Form Factors at Large Momentum Transfers
Name
PhysRevLett.119.162501.pdf
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303.72 KB
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Checksum (MD5)
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Author(s)
Camsonne, A.
Katramatou, A. T.
Olson, M.
Acha, A.
Allada, K.
Anderson, B. D.
Arrington, J.
Baldwin, A.
Chen, J.-P.
Choi, S.
Date Issued
October 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Camsonne, A., et al. “JLab Measurements of the He 3 Form Factors at Large Momentum Transfers.” Physical Review Letters, vol. 119, no. 16, Oct. 2017. © 2017 American Physical Society
Version
Final published version
Abstract
The charge and magnetic form factors, F[subscript C] and F[subscript M], respectively, of [superscript 3]He are extracted in the kinematic range 25 fm[superscript -2]≤Q[superscript 2]≤61 fm[superscript -2] from elastic electron scattering by detecting [superscript 3]He recoil nuclei and scattered electrons in coincidence with the two High Resolution Spectrometers of the Hall A Facility at Jefferson Lab. The measurements find evidence for the existence of a second diffraction minimum for the magnetic form factor at Q[superscript 2]=49.3 fm[superscript -2] and for the charge form factor at Q[superscript 2]=62.0 fm[superscript -2]. Both minima are predicted to exist in the Q[superscript 2] range accessible by this Jefferson Lab experiment. The data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the three-body nuclear problem.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.119.162501
