
Article
Measurement of the Electric and Magnetic Form Factors of the Proton from Q2 1.75 to 8.83 (GeV/c)2
Physical Review Letters
(1992)
Abstract
The proton elastic electric and magnetic form factors, GEM and G’bfP(Q2), have been separately measured in the range Q” =1.75 to 8.83 (GeV/c)2, more than doubling the Q3 range of previous data. Scaled by the dipole fit, Go(Q2), the results for Gnlp(Q2)//+G~(Q2) d ecrease smoothly from 1.05 to 0.91, while G~p(Q~)lcdQ~) is consistent with unity. Comparisons are made to QCD Sum L-eRule, diquark, constituent quark, and VMD models, none of whic,h agree with all of the new data. The ratio Q2F2/Fl approaches a constant value for Q2 > 3 ( GeV/c)2. --p;. .- -- 2
Disciplines
Publication Date
June 29, 1992
Publisher Statement
DOI:10.1103/PhysRevLett.68.3841
Creative Commons Attribution License 3.0 (cc-BY)
Citation Information
P E Bosted, L Clogher, A Lung, R G Arnold, et al.. "Measurement of the Electric and Magnetic Form Factors of the Proton from Q2 1.75 to 8.83 (GeV/c)2" Physical Review Letters Vol. 68 Iss. 26 (1992) Available at: http://works.bepress.com/gerald_peterson/9/