Global analysis of proton elastic form factor data with two-photon exchange corrections
Jul, 200713 pages
Published in:
- Phys.Rev.C 76 (2007) 035205
e-Print:
- 0707.1861 [nucl-ex]
Report number:
- JLAB-THY-07-678
Citations per year
Abstract: (arXiv)
We use the world's data on elastic electron--proton scattering and calculations of two-photon exchange effects to extract corrected values of the proton's electric and magnetic form factors over the full Q^2 range of the existing data. Our analysis combines the corrected Rosenbluth cross section and polarization transfer data, and is the first extraction of G_Ep and G_Mp including explicit two-photon exchange corrections and their associated uncertainties. In addition, we examine the angular dependence of the corrected cross sections, and discuss the possible nonlinearities of the cross section as a function of epsilon.- 25.30.Bf
- 13.40.Gp
- 14.20.Dh
- electron p: elastic scattering
- differential cross section: angular dependence
- exchange: one-photon
- Born approximation
- exchange: two-photon
- polarization
- p: form factor
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