Infrared divergences and non-lightlike eikonal lines in Sudakov processes

J. C. Collins, F. Hautmann

Research output: Contribution to journalArticlepeer-review

126 Scopus citations


We propose a method to analyze infrared contributions to non-inclusive processes in QCD. We use the one-loop Sudakov form factor as a working example. Borrowing techniques from renormalization theory, we construct counterterms for the contributions from the soft and collinear regions, and we relate them to eikonal Wilson lines taken along non-lightlike directions. (C) 2000 Published by Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)129-134
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-2
StatePublished - Jan 13 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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