SAGEX website: https://sagex.org/
Lectures: http://amplitudes.org/lectures/
Literature: https://sagex.org/?page_id=1091
SAGEX review, the general invitation to read:
The SAGEX Review on Scattering Amplitudes
https://arxiv.org/pdf/2203.13011.pdf
Several interesting SAGEX reviews:
The SAGEX Review on Scattering Amplitudes
Chapter 1: Modern Fundamentals of Amplitudes
https://arxiv.org/pdf/2203.13012.pdf
The SAGEX Review on Scattering Amplitudes
Chapter 5: Analytic Bootstraps for Scattering Amplitudes and Beyond
https://arxiv.org/pdf/2203.13016.pdf
The SAGEX Review on Scattering Amplitudes
Chapter 7: Positive Geometry of Scattering Amplitudes
https://arxiv.org/pdf/2203.13018.pdf
The SAGEX Review on Scattering Amplitudes
Chapter 12: Amplitudes and collider physics
https://arxiv.org/pdf/2203.13023.pdf
The SAGEX Review on Scattering Amplitudes
Chapter 15: The Multi-Regge Limit
https://arxiv.org/pdf/2203.13026.pdf
Some references:
The Infrared Structure of Perturbative Gauge Theories
https://arxiv.org/pdf/2112.07099.pdf
CALCULATING SCATTERING AMPLITUDES EFFICIENTLY
https://arxiv.org/pdf/hep-ph/9601359.pdf
OPERATOR EXPANSION FOR HIGH-ENERGY SCATTERING
https://arxiv.org/pdf/hep-ph/9509348.pdf
QCD and Resonance Physics. Theoretical Foundations
https://inspirehep.net/literature/130694
