Published June 1, 1994
| Published
Journal Article
Open
Measurements of the proton elastic form factors for 1≤Q^2≤3 (GeV/c)^2 at SLAC
- Creators
- Walker, R. C.
-
Filippone, B. W.
- Jourdan, J.
- Milner, R.
- McKeown, R.
- Potterveld, D.
- Andivahis, L.
- Arnold, R.
- Benton, D.
- Bosted, P.
- deChambrier, G.
- Lung, A.
- Rock, S. E.
- Szalata, Z. M.
- Para, A.
- Dietrich, F.
- Van Bibber, K.
- Button-Shafer, J.
- Debebe, B.
- Hicks, R. S.
- Dasu, S.
- de Barbaro, P.
- Bodek, A.
- Harada, H.
- Krasny, M. W.
- Lang, K.
- Riordan, E. M.
- Gearhart, R.
- Whitlow, L. W.
- Alster, J.
Abstract
We report measurements of the proton form factors GEp and GMp extracted from elastic scattering in the range 1≤Q^2≤3 (GeV/c)^2 with total uncertainties < 15% in GEp and < 3% in GMp. Comparisons are made to theoretical models, including those based on perturbative QCD, vector-meson dominance, QCD sum rules, and diquark constituents in the proton. The results for GEp are somewhat larger than indicated by most theoretical parametrizations, and the ratios of the Pauli and Dirac form factors Q^2(F2p / F1p) are lower in value and demonstrate a weaker Q^2 dependence than those predictions. A global extraction of the elastic form factors from several experiments in the range 0.1 0.1
Additional Information
© 1994 American Physical Society. Received 4 November 1993. We would like to thank B. Richter, R. Eisele, C. Hudspeth, G. Davis, J. Mark, M. Starek, J. Nicol, A. Sill, and the SLAC management and staff for their assistance in this experiment. This research was supported by National Science Foundation Grant Nos. PHY85-05682 and PHY84-10549 and Department of Energy Contract Nos. DE-AC02-76ER13065, DE-AC02-76ER02853, DE-AC03-76F00515, W-7405-ENG-48, and the US-Israel Binational Science Foundation.Attached Files
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Additional details
- Eprint ID
- 12482
- Resolver ID
- CaltechAUTHORS:WALprd94
- PHY85-05682
- NSF
- PHY84-10549
- NSF
- DE-AC02-76ER13065
- Department of Energy (DOE)
- DE-AC02-76ER02853
- Department of Energy (DOE)
- DE-AC03-76F00515
- Department of Energy (DOE)
- W-7405-ENG-48
- Department of Energy (DOE)
- Binational Science Foundation (USA-Israel)
- Created
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2008-12-13Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field