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Scattering amplitudes are fundamental and rich observables in
quantum field theory. Based on the observation that, for massless
particles of spin-one or more, scattering amplitudes are much
simpler than expected from traditional Feynman diagram techniques,
the broad aim of this work is to understand and exploit this hidden
structure. It uses methods from twistor theory to provide new
insights into the correspondence between scattering amplitudes in
supersymmetric Yang-Mills theory and null polygonal Wilson loops.
By additionally exploiting the symmetries of the problem, the
author succeeds in developing new ways of computing scattering
amplitudes.
Scattering amplitudes are fundamental and rich observables in
quantum field theory. Based on the observation that, for massless
particles of spin-one or more, scattering amplitudes are much
simpler than expected from traditional Feynman diagram techniques,
the broad aim of this work is to understand and exploit this hidden
structure. It uses methods from twistor theory to provide new
insights into the correspondence between scattering amplitudes in
supersymmetric Yang-Mills theory and null polygonal Wilson loops.
By additionally exploiting the symmetries of the problem, the
author succeeds in developing new ways of computing scattering
amplitudes.
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