Nonlinear gluon evolution in the color glass condensate: I
By E. Iancu, Andrei Leonidov, Larry McLerran. 2000
1,004 citations recorded by the source corpus.
We consider a nonlinear evolution equation recently proposed to describe the small-$x$ hadronic physics in the regime of very high gluon density. This is a functional Fokker-Planck equation in terms of a classical random color source, which represents the color charge density of the partons with large $x$. In the saturation regime of interest, the coefficients of this equation must be known to all orders in the source strength. In this first paper of a series of two, we carefully derive the evolution equation, via a matching between classical and quantum correlations, and set up the framework for the exact background source calculation of its coefficients. We address and clarify many of the subtleties and ambiguities which have plagued past attempts at an explicit construction of this equation. We also introduce the physical interpretation of the saturation regime at small $x$ as a Color Glass Condensate. In the second paper we shall evaluate the expressions derived here, and compare them to known results in various limits.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/bc838c669391a7a4cfb7bcec19a9cb0a9d3d9930
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In Nuclear and High Energy Physics
Citations in the corpus
- Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma (2008, background): “In particular, the physics of small-x wave functions is similar to that of a spin glass [141, 135, 136, 137, 138, 139].”