Saturation and universality in QCD at small x
By E. Iancu, Larry McLerran. 2001
193 citations recorded by the source corpus.
Abstract We find approximate solutions to the renormalization group equation which governs the quantum evolution of the effective theory for the Color Glass Condensate. This is a functional Fokker–Planck equation which generates in particular the non-linear evolution equations previously derived by Balitsky and Kovchegov within perturbative QCD. In the limit where the transverse momentum of the external probe is large compared to the saturation momentum, our approximations yield the Gaussian ansatz for the effective action of the McLerran–Venugopalan model. In the opposite limit, of a small external momentum, we find that the effective theory is governed by a scale-invariant universal action which has the correct properties to describe gluon saturation.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/bcfe39a8c056f9bc04f604527ff1d173d87a57be
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
Citations in the corpus
- Deep inelastic scattering in conformal QCD (2009, background): “This growth breaks unitarity and leads to gluon saturation in the target hadron structure functions [5–11], which for large Q still occurs for small coupling αs [12].”
- Deep inelastic scattering at strong coupling from gauge/string duality: the saturation line (2007, background): “These efforts have been mainly oriented in two directions: (i) the calculation [2] and proper implementation [3] of the next–to–leading order corrections to the linear BFKL equation, and (ii) the inclusion of the non–linear effects, like multiple scattering and gluon saturation, responsible for the ”