Imaginary parts and discontinuities of Wilson line correlators.

@article{Laenen2015ImaginaryPA,
  title={Imaginary parts and discontinuities of Wilson line correlators.},
  author={E. Laenen and Kasper J. Larsen and R. Rietkerk},
  journal={Physical review letters},
  year={2015},
  volume={114 18},
  pages={
          181602
        }
}
  • E. Laenen, Kasper J. Larsen, R. Rietkerk
  • Published 2015
  • Medicine, Physics
  • Physical review letters
  • We introduce a notion of position-space cuts of eikonal diagrams, the set of diagrams appearing in the perturbative expansion of the correlator of a set of straight semi-infinite Wilson lines. The cuts are applied directly to the position-space representation of any such diagram and compute its imaginary part to the leading order in the dimensional regulator. Our cutting prescription thus defines a position-space analog of the standard momentum-space Cutkosky rules. Unlike momentum-space cuts… CONTINUE READING

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