Abstract
So far, we exclusively discussed the off-shell Sudakov form factor, which provides the simplest example to discuss Sudakov logarithms and their resummation. The off-shell form factor is, however, gauge dependent and therefore unphysical. With all the formalism in place, we are now ready to analyze a physical cross section.
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Becher, T., Broggio, A., Ferroglia, A. (2015). Threshold Resummation in Drell-Yan Production. In: Introduction to Soft-Collinear Effective Theory. Lecture Notes in Physics, vol 896. Springer, Cham. https://doi.org/10.1007/978-3-319-14848-9_6
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