What is the ie for the S-matrix?

What is the ie for the S-matrix? / Holmfridur Sigridar Hannesdottir, Sebastian Mizera.

Provides a pedagogical introduction to the analytic properties of the S-matrix. Reviews the rich literature on singularities of scattering amplitudes. Presents a new prescription for analytically continuing Feynman integrals to complex kinematics.

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Bibliographic Details
Main Authors: Hannesdottir, Holmfridur Sigridar (Author), Mizera, Sebastian (Author)
Format: eBook
Language:English
Published: Cham : Springer, 2022.
Series:SpringerBriefs in physics.
Subjects:
S-matrix theory.
S-matrix theory
Online Access:Click for online access
Table of Contents:
  • 1. Introduction
  • 2. Unitarity implies anomalous thresholds
  • 3. Primer on the analytic S-matrix 4
  • Singularities as classical saddle points
  • 5. Branch cut deformations
  • 6. Glimpse at generalized dispersion relations
  • 7. Fluctuations around classical saddle points
  • 8. Conclusion Appendix. Review of Schwinger parametrization.

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