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- Title
High-energy scattering in quantum chromodynamics at small Bjorken x.
- Authors
Jalilian‐Marian, J.
- Abstract
After a brief introduction to perturbative quantum chromodynamics ( pQCD), we consider particle production in the high-energy limit of QCD. We motivate the need for a novel dynamical effect, namely gluon saturation, to slow down the sharp rise of perturbative cross-sections at small Bjorken x in order not to violate the Froissart bound. Gluon saturation dynamics in QCD can be efficiently studied using an effective action approach. The two main effects included are high gluon density effects, which lead to multiple scatterings, and the energy dependence of observables, which is included via the small x evolution equations. We discuss the signatures of and prospects for observing gluon saturation in high-energy processes.
- Subjects
QUANTUM chromodynamics; GLUONS; NUMERICAL solutions to evolution equations; QUANTUM perturbations; QUANTUM electrodynamics
- Publication
Astronomische Nachrichten, 2017, Vol 338, Issue 9/10, p1109
- ISSN
0004-6337
- Publication type
Article
- DOI
10.1002/asna.201713445