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JLab Measurements of the ^{3}He Form Factors at Large Momentum Transfers.

Authors :
Camsonne A
Katramatou AT
Olson M
Acha A
Allada K
Anderson BD
Arrington J
Baldwin A
Chen JP
Choi S
Chudakov E
Cisbani E
Craver B
Decowski P
Dutta C
Folts E
Frullani S
Garibaldi F
Gilman R
Gomez J
Hahn B
Hansen JO
Higinbotham DW
Holmstrom T
Huang J
Iodice M
Jiang X
Kelleher A
Khrosinkova E
Kievsky A
Kuchina E
Kumbartzki G
Lee B
LeRose JJ
Lindgren RA
Lott G
Lu H
Marcucci LE
Margaziotis DJ
Markowitz P
Marrone S
Meekins D
Meziani ZE
Michaels R
Moffit B
Norum B
Petratos GG
Puckett A
Qian X
Rondon O
Saha A
Sawatzky B
Segal J
Shabestari M
Shahinyan A
Solvignon P
Sparveris N
Subedi RR
Suleiman R
Sulkosky V
Urciuoli GM
Viviani M
Wang Y
Wojtsekhowski BB
Yan X
Yao H
Zhang WM
Zheng X
Zhu L
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