High energy scattering in Quantum Chromodynamics
Francois Gelis, Tuomas Lappi, Raju Venugopalan
TL;DR
This paper provides a comprehensive overview of high energy scattering in Quantum Chromodynamics, covering the parton model, gluon saturation, and the application of the Color Glass Condensate to hadronic collisions.
Contribution
It introduces the application of the Color Glass Condensate to high energy collisions and outlines a proof of high energy factorization for gluon production.
Findings
Description of parton evolution and scaling violations
Analysis of gluon saturation and CGC phenomena
Outline of high energy factorization proof
Abstract
In this series of three lectures, we discuss several aspects of high energy scattering among hadrons in Quantum Chromodynamics. The first lecture is devoted to a description of the parton model, Bjorken scaling and the scaling violations due to the evolution of parton distributions with the transverse resolution scale. The second lecture describes parton evolution at small momentum fraction x, the phenomenon of gluon saturation and the Color Glass Condensate (CGC). In the third lecture, we present the application of the CGC to the study of high energy hadronic collisions, with emphasis on nucleus-nucleus collisions. In particular, we provide the outline of a proof of high energy factorization for inclusive gluon production.
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