Rummukainen, K. and Weigert, Heribert (2004) Universal features of JIMWLK and BK evolution at small x. NUCLEAR PHYSICS A, 739 (1-2). pp. 183-226. ISSN 0375-9474, 1873-1554
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In this paper we present the results of numerical studies of the JIMWLK and BK equations with a particular emphasis on the universal scaling properties and phase space structure involved. The results are valid for near zero impact parameter in DIS. We demonstrate IR safety due to the occurrence of a rapidity-dependent saturation scale Q(s) (tau). Within the set of initial conditions chosen, both JIMWLK and BK equations show remarkable agreement. We point out the crucial importance of running coupling corrections to obtain consistency in the UV for both equations. Explicit studies of this have been performed with BK. Despite the scale breaking induced by the running coupling we find that evolution drives correlators towards an asymptotic form with near scaling properties. We discuss asymptotic features of the evolution, such as the tau- and A-dependence of Q(s) away from the initial condition. (C) 2004 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GLUON DISTRIBUTION-FUNCTIONS; WEIZSACKER-WILLIAMS FIELDS; COLOR GLASS CONDENSATE; NONLINEAR EVOLUTION; BFKL POMERON; LARGE NUCLEUS; SATURATION MOMENTUM; ENERGY-DEPENDENCE; QCD; EQUATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Jul 2021 06:09 |
| Last Modified: | 07 Jul 2021 06:09 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37444 |
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