A Course in Amplitudes

Abstract

This a pedagogical introduction to scattering amplitudes in gauge theories. It proceeds from Dirac equation and Weyl fermions to the two pivot points of current developments: the recursion relations of Britto, Cachazo, Feng and Witten, and the unitarity cut method pioneered by Bern, Dixon, Dunbar and Kosower. In ten lectures, it covers the basic elements of on-shell methods.

57 pages

References in corpus (2)

• Soft sub-leading divergences in Yang-Mills amplitudes
• Subleading Terms in the Collinear Limit of Yang-Mills Amplitudes

Cited by in corpus (22)

• Lectures on Celestial Amplitudes
• Symmetries of Celestial Amplitudes
• Strings on Celestial Sphere
• Extended BMS Algebra of Celestial CFT
• Extended Super BMS Algebra of Celestial CFT
• Conformal Blocks from Celestial Gluon Amplitudes
• Primary Fields in Celestial CFT
• Quantum walk approach to simulating parton showers
• Elements of Celestial Conformal Field Theory
• Soft Limits of Yang-Mills Amplitudes and Conformal Correlators
• Celestial Liouville Theory for Yang-Mills Amplitudes
• Towards a Quantum Computing Algorithm for Helicity Amplitudes and Parton Showers
• Conformal Blocks from Celestial Gluon Amplitudes II: Single-valued Correlators
• Descendants in celestial CFT and emergent multi-collinear factorization
• Black Holes in Klein Space
• Massive Celestial Fermions
• Celestial Recursion
• Celestial Supersymmetry
• Light transformed gluon correlators in CCFT
• Asymptotic Symmetry of Four Dimensional Einstein-Yang-Mills and Einstein-Maxwell Theory
• Soft and Collinear Limits in $\mathcal{N}=8$ Supergravity using Double Copy Formalism
• Muon $g-2$ discrepancy within D-brane string compactifications