Abstract
The quark electromagnetic form factor in the Sudakov region is calculated with the use of the renormalization properties of the contour functional <0 | T P exp(i g∫ c d z μ A μ ( z)) | 0>. It is shown that the nonleading logarithmic corrections to the Sudakov form factor are summed to give a decreasing exponential and they do not destroy the leading double logarithmic result.
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