Unitarity-Cuts and Berry's Phase

Details Unitarity-Cuts and Berry's Phase Unitarity-Cuts and Berry's Phase

2009-06-22

arxiv.org/abs/0906.3789v1

Lett.Math.Phys.91:199-204,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 1 figure

Scientific paper

10.1007/s11005-010-0370-z

Elaborating on the observation that two-particle unitarity-cuts of scattering
amplitudes can be computed by applying Stokes' Theorem, we relate the Optical
Theorem to the Berry Phase, showing how the imaginary part of arbitrary
one-loop Feynman amplitudes can be interpreted as the flux of a complex 2-form.

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