Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec 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. Gilad; W. 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; J. Rapaport; R. P. Redwine; J. Seely; A. Shinozaki; S. Sirca; 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

doi:10.1103/physrevlett.98.052301

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Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p)

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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 $Q^2$ 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 previous cross-section data on elastic electron-proton scattering in the same $Q^2$ region.

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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. Gilad, W. 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, J. Rapaport, R. P. Redwine, J. Seely, A. Shinozaki, S. Sirca, 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. 2006-09-07. Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p). https://doi.org/10.1103/physrevlett.98.052301

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