New results from the bates large acceptance spectrometer toroid (blast)

Journal Article

An experiment using the novel technique of scattering a longitudinally polarized electron beam from polarized internal hydrogen/deuterium gas targets was carried out in the South Hall Ring at the MIT-Bates Accelerator Center. The scattered particles were detected by the Bates Large Acceptance Spectrometer Toroid (BLAST) detector. The proton electric to magnetic form factor ratio, $\frac{G-E^p}{G-M^p}$ at Q2 = 0.1 - 0.65 (GeV/c) 2 has been determined from the experiment by measuring the spin-dependent ep elastic scattering asymmetry in the two symmetric sectors of the BLAST simultaneously for the first time. The neutron electric form factor $G-E^n$ in the same Q2 range has been extracted by measuring the spin-dependent asymmetry from the $\vec d(\vec e,e'n)$ process with a vector polarized deuterium target. These results on the nucleon form factors from the BLAST experiment are presented. © 2009 World Scientific Publishing Company.

Full Text

Duke Authors

Cited Authors

  • Gao, H

Published Date

  • February 1, 2009

Published In

Volume / Issue

  • 18 / 2

Start / End Page

  • 209 - 219

International Standard Serial Number (ISSN)

  • 0218-3013

Digital Object Identifier (DOI)

  • 10.1142/S0218301309012227

Citation Source

  • Scopus