JLab Measurements of the [superscript 3]He Form Factors at Large Momentum Transfers
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...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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Other Authors: | , |
Format: | Article |
Language: | English |
Published: |
American Physical Society,
2018-02-22T21:14:11Z.
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Subjects: | |
Online Access: | Get fulltext |
Summary: | 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. United States. Department of Energy (Awards DEAC02-06CH11357) United States. Department of Energy (Awards DE-FG02-96ER40950) National Science Foundation (U.S.) (Grant NSF-PHY-0701679) National Science Foundation (U.S.) (Grant NSF-PHY-1405814) National Science Foundation (U.S.) (Grant NSF-PHY-1714809) National Science Foundation (U.S.) (Grant NSF-PHY-0652713) Kent State University. Research Council Istituto nazionale di fisica nucleare (INFN) |
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