Applied High Energy QCD

TL;DR

This paper reviews the theoretical foundations and phenomenological applications of high-energy QCD, covering topics from basic principles to advanced formalisms like BFKL and saturation, with applications to various scattering processes.

Contribution

It provides a comprehensive overview of high-energy QCD phenomenology, integrating multiple theoretical approaches and their applications to experimental processes.

Findings

Discussion of QCD-based phenomenological models

Application of light-cone dipole formalism to scattering processes

Analysis of saturation effects and nuclear shadowing

Abstract

These lectures stress the theoretical elements that underlie a wide range of phenomenological studies of high-energy QCD, which include both soft and hard processes. After a brief introduction to the basics of QCD, various aspects of QCD-based phenomenology are covered: colour transparency, hadronization of colour charges, Regge phenomenology, parton model, Bjorken scaling and its violation, DGLAP evolution equation, BFKL formalism, GLR-MQ evolution equation and saturation. In the last part of the lecture, we employ the light-cone dipole formalism to describe deep inelastic lepton scattering, Drell-Yan processes, direct photon production, diffraction, quark and gluon shadowing in nuclei, the Cronin effect and nuclear broadening.