The renormalization group equation for the color glass condensate
By E. Iancu, Andrei Leonidov, Larry McLerran. 2001
581 citations recorded by the source corpus.
Abstract We present an explicit and simple form of the renormalization group equation which governs the quantum evolution of the effective theory for the Color Glass Condensate (CGC). This is a functional Fokker–Planck equation for the probability density of the color field which describes the CGC in the covariant gauge. It is equivalent to the Euclidean time evolution equation for a second quantized current–current Hamiltonian in two spatial dimensions. The quantum corrections are included in the leading log approximation, but the equation is fully non-linear with respect to the generally strong background field. In the weak field limit, it reduces to the BFKL equation, while in the general non-linear case it generates the evolution equations for Wilson-line operators previously derived by Balitsky and Kovchegov within perturbative QCD.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/25c9c162d6216c2cef42aced483c71ba9accb5e9
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In Nuclear and High Energy Physics
- A. Mueller
- E. Iancu
- B. Schenke
- S. Caron-Huot
- D. Triantafyllopoulos
- G. Soyez
- J. D. Madrigal
- Cms Collaboration
Citations in the corpus
- Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma (2008, background): “Thus, although the physics of small-x partons is non-perturbative, it can be studied with weak coupling [133, 134, 135, 136, 137, 138, 139, 140].”
- When does the gluon reggeize? (2013, methodology): “This insight was formalized in the nineties through work by Mueller [8], Balitsky [9], Kovchegov [10] and Jalilian-Marian, Iancu, McLerran, Weigert, Leonidov and Kovner (“JIMWLK”, for short) [11–13].”
- Collinearly-improved BK evolution meets the HERA data (2015, background): “The subsequent understanding [8–10] of this scaling from the non-linear evolution equations in QCD — the Balitsky–JIMWLK hierarchy [11–17] and its mean field approximation known as the Balitsky–Kovchegov (BK) equation [18] — has greatly increased our confidence in the validity of the pQCD approach t”