Measurement of the proton's electric to magnetic form factor ratio from H→1(e→,e′p)

C. B. Crawford, A. Sindile, T. Akdogan, Ricardo Alarcon, W. Bertozzi, E. Booth, T. Botto, J. Calarco, B. Clasie, A. Degrush, T. W. Donnelly, K. Dow, D. Dutta, M. Farkhondeh, R. Fatemi, O. Filoti, W. Franklin, H. Gao, E. Geis, S. GiladW. Haeberli, D. Hasell, W. Hersman, M. Holtrop, P. Karpius, M. Kohl, H. Kolster, T. Lee, A. Maschinot, J. Matthews, K. McIlhany, N. Meitanis, R. G. Milner, R. P. Redwine, J. Seely, A. Shinozaki, S. Širca, E. Six, T. Smith, B. Tonguc, C. Tschalaer, E. Tsentalovich, W. Turchinetz, J. F J Van Den Brand, J. Van Der Laan, F. Wang, T. Wise, Y. Xiao, W. Xu, C. Zhang, Z. Zhou, V. Ziskin, T. Zwart

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118 Scopus citations

Abstract

We report the first precision measurement of the proton electric to magnetic form factor ratio from spin-dependent elastic scattering of longitudinally polarized electrons from a polarized hydrogen internal gas target. The measurement was performed at the MIT-Bates South Hall Ring over a range of four-momentum transfer squared Q2 from 0.15 to 0.65(GeV/c)2. Significantly improved results on the proton electric and magnetic form factors are obtained in combination with existing cross-section data on elastic electron-proton scattering in the same Q2 region.

Original languageEnglish (US)
Article number052301
JournalPhysical Review Letters
Volume98
Issue number5
DOIs
StatePublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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