Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session R09: Proton Charge Radius and Low-Energy Properties.
1:30 PM–2:54 PM,
Monday, April 15, 2019
Sheraton
Room: Governor's Square 11
Sponsoring
Units:
GHP DNP
Chair: Tim Hobbs, Southern Methodist University
Abstract: R09.00002 : The Form Factor Program with the Super BigBite Spectrometer (SBS)
1:42 PM–1:54 PM
View Presentation Abstract
Presenter:
Peter A Monaghan
(Christopher Newport University)
Author:
Peter A Monaghan
(Christopher Newport University)
Collaboration:
SBS Collaboration
The Super Bigbite Spectrometer (SBS) has been developed for precise measurements of the proton electric form factor (GEP) and the neutron electric and magnetic form factors (GEn and GMn), at a momentum transfer higher than ever previously explored. These form factor measurements will be made in a suite of experiments to be run in Hall A at the Thomas Jefferson National Accelerator Facility (JLab). The SBS apparatus consists of a new, large acceptance dipole magnet, and new detector packages which are currently under construction. The present GEP form factor measurements are limited at a momentum transfer of Q2 = 3.4 (GeV/c)2. The new experiments will extend the Q2 range up to 10 (GeV/c)2, while significantly improving the precision of the measurements. An overview of the SBS apparatus and the physics measurements of the GEP , GMn and GEn will be presented.
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