One-loop n-point gauge theory amplitudes, unitarity and collinear limits

  title={One-loop n-point gauge theory amplitudes, unitarity and collinear limits},
  author={Zvi Bern and Lance J. Dixon and David C. Dunbar and David A. Kosower},
  journal={Nuclear Physics},
String-motivated one-loop amplitudes in gauge theories with half-maximal supersymmetry
A bstractWe compute one-loop amplitudes in six-dimensional Yang-Mills theory with half-maximal supersymmetry from first principles: imposing gauge invariance and locality on an ansatz made from
A unitarity compatible approach to one-loop amplitudes with massive fermions
A bstractWe explain how one-loop amplitudes with massive fermions can be computed using only on-shell information. We first use the spinor-helicity formalism in six dimensions to perform generalised
One-loop amplitudes of gluons in supersymmetric QCD
One-loop amplitudes of gluons in supersymmetric Yang-Mills are four-dimensional cut-constructible. This means that they can be determined from their unitarity cuts. We present a new systematic
Twistors, strings and supersymmetric gauge theories
This thesis is concerned with the study of scattering amplitudes in four-dimensional conformal field theories, more particularly the N=4 super-Yang-Mills theory. We study this theory first at tree


One-loop corrections to five-gluon amplitudes.
We present the one-loop helicity amplitudes with five external gluons. The computation employs string-based methods, new techniques for performing tensor integrals, and improvements in the spinor
Amplitude for n-gluon scattering.
A nontrivial squared helicity amplitude is given for the scattering of an arbitrary number of gluons to lowest order in the coupling constant and to leading order in the number of colors.
The Ubiquitous photon: Helicity method for QED and QCD
Introduction Feynman diagrams Helicity states Single bremsstrahlung in QED Single bremsstrahlung in QCD Double bremsstrahlung Finite mass effects The production of quarkonia Summary of QED formulae
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