A Precise Measurement of the Proton Elastic Form Factors for 1.75 <= Q**2 <= 8.83 (GeV/c)**2
- SLAC
The proton elastic electric and magnetic form factors, G{sub E{sub p}}(Q{sup 2}) and G{sub M{sub p}}(Q{sup 2}), have been separated out to Q{sup 2} of 8.83 (GeV/c){sup 2}, more than doubling the Q{sup 2} range of previous data. The results for G{sub M{sub p}}(Q{sup 2})/{micro}{sub p}G{sub D}(Q{sup 2}) decrease smoothly from 1.05 to 0.92, while G{sub E{sub p}}(Q{sup 2})/G{sub D}(Q{sup 2}) is consistent with unity. Comparisons are made to QCD Sum Rule, diquark, constituent quark, and VMD models, none of which agree with all of the new data. The ratio Q{sup 2}F{sub 2}/F{sub 1} approaches a constant value for Q{sup 2} > 3 (GeV/c){sup 2}.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 826980
- Report Number(s):
- SLAC-R-726
- Country of Publication:
- United States
- Language:
- English
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