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This content will become publicly available on October 19, 2018

Title: JLab Measurements of the He 3 Form Factors at Large Momentum Transfers

The charge and magnetic form factors, F C and F M, respectively, of 3He are extracted in the kinematic range 25 fm –2 ≤ Q 2 ≤ 61 fm –2 from elastic electron scattering by detecting 3He 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. Here, the data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the three-body nuclear problem.
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Publication Date:
Report Number(s):
JLAB-PHY-16-2370; DOE/OR/23177-3976; arXiv:1610.07456
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1702867
Grant/Contract Number:
AC05-060R23177; AC02-06CH11357; FG02-96ER40950; NSF-PHY-0701679; NSF-PHY-1405814; NSF-PHY-1714809; NSF-PHY-0652713
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
The Jefferson Lab Hall A Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1402046
Alternate Identifier(s):
OSTI ID: 1400342; OSTI ID: 1411149