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

C. B. Crawford, A. Sindile, T. Akdogan, R. 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

Research output: Contribution to journalArticlepeer-review

128 Scopus citations


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
Article number052301
JournalPhysical Review Letters
Issue number5
StatePublished - 2007

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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