On radiative corrections for unpolarized electron-proton elastic scattering |
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Authors: | E Tomasi-Gustafsson |
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Institution: | (1) DAPNIA/SPhN, CEA/Saclay, Gif-sur-Yvette Cedex, France |
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Abstract: | A statistical analysis of the elastic unpolarized electron-proton scattering data shows that at large momentum transfer the
size and the ε dependence of the radiative corrections, as traditionally calculated and applied, may induce large correlations
of the parameters of the Rosenbluth fit, which prevent a correct extraction of the electric proton form factor. Using the
electron QED structure (radiation) function approach, the cross section of elastic electron-proton scattering in leading and
next-to-leading approximations is calculated and expressed as a correction to the Born cross section, which is different for
the electric and magnetic contributions. When properly applied to the data, it may yield the solution to the problem of the
discrepancy of the polarized and unpolarized results on electron-proton scattering.
The text was submitted by the author in English. |
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