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JLab Measurements of the ^{3}He Form Factors at Large Momentum Transfers.
- Source :
-
Physical review letters [Phys Rev Lett] 2017 Oct 20; Vol. 119 (16), pp. 162501. Date of Electronic Publication: 2017 Oct 19. - Publication Year :
- 2017
-
Abstract
- The charge and magnetic form factors, F_{C} and F_{M}, respectively, of ^{3}He are extracted in the kinematic range 25 fm^{-2}≤Q^{2}≤61 fm^{-2} from elastic electron scattering by detecting ^{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^{2}=49.3 fm^{-2} and for the charge form factor at Q^{2}=62.0 fm^{-2}. Both minima are predicted to exist in the Q^{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.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 119
- Issue :
- 16
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 29099223
- Full Text :
- https://doi.org/10.1103/PhysRevLett.119.162501