A Measurement of the neutron electric form factor at very large momentum transfer using polaried electrions scattering from a polarized helium-3 target

Thesis/Dissertation · Mon Feb 01 00:00:00 EST 2010

DOI:https://doi.org/10.2172/1054083· OSTI ID:1054083

Kelleher, Aidan ^[1]

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1. College of William and Mary, Williamsburg, VA (United States)

Knowledge of the electric and magnetic elastic form factors of the nucleon is essential for an understanding of nucleon structure. Of the form factors, the electric form factor of the neutron has been measured over the smallest range in Q² and with the lowest precision. Jefferson Lab experiment 02-013 used a novel new polarized ³ He target to nearly double the range of momentum transfer in which the neutron form factor has been studied and to measure it with much higher precision. Polarized electrons were scattered off this target, and both the scattered electron and neutron were detected. Gⁿ _E was measured to be 0.0242 ± 0.0020(stat) ± 0.0061(sys) and 0.0247 ± 0.0029(stat) ± 0.0031(sys) at Q² = 1.7 and 2.5 GeV² , respectively.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1054083
• Report Number(s): JLAB-PHY-10-1323-2; DOE/OR/23177-2359
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS