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Aspects of High Energy Scattering

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arxiv 1909.05177 v2 pith:IPV3GTI7 submitted 2019-09-11 hep-th hep-ph

Chris D. White This is my paper · ORCID
classification hep-thhep-ph
keywords amplitudesbehaviourpossiblescatteringaimedapplicationsariseaspects
verification ladder T0 review T1 audit T2 compute T3 formal
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Scattering amplitudes in quantum field theories are of widespread interest, due to a large number of theoretical and phenomenological applications. Much is known about the possible behaviour of amplitudes, that is independent of the details of the underlying theory. This knowledge is often neglected in modern QFT courses, and the aim of these notes - aimed at graduate students - is to redress this. We review the possible singularities that amplitudes can have, before examining the generic behaviour that can arise in the high-energy limit. Finally, we illustrate the results using examples from QCD and gravity.

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Cited by 1 Pith paper

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  1. Regge poles and cuts and the Lipatov vertex

    hep-ph 2024-12 conditional novelty 6.0 of 10

    A two-loop multi-Reggeon exchange contribution to 2->3 amplitudes is computed for the first time, enabling extraction of the two-loop Lipatov vertex.

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