Multigluon correlations in JIMWLK
arXiv:1207.7202 · doi:10.1016/j.nuclphysa.2012.12.052
Abstract
We discuss applications of the JIMWLK renormalization group equation to multigluon correlations in high energy collisions. This includes recent progress in computing the energy dependence of higher point Wilson line correlators from the JIMWLK renormalization group equation. We find that the large Nc approximation used so far in the phenomenological literature is not very accurate. On the other hand a Gaussian finite Nc approximation is surprisingly close to the full result. We also discuss correlations at large rapidity separations, relevant for the "ridge" correlations observed in experiments.
4 pages, 3 figures, talk given at the 5th international Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2012), May 27th - June 1st, Cagliari (Italy) V2: typo corrections
References in corpus (12)
- The Color Glass Condensate
- Universality of Unintegrated Gluon Distributions at small x
- The ridge in proton-proton collisions at the LHC
- Azimuthal collimation of long range rapidity correlations by strong color fields in high multiplicity hadron-hadron collisions
- Azimuthal correlations of forward di-hadrons in d+Au collisions at RHIC in the Color Glass Condensate
- Renormalization group evolution of multi-gluon correlators in high energy QCD
- High energy factorization in nucleus-nucleus collisions III. Long range rapidity correlations
- Higher-point correlations from the JIMWLK evolution
- Small x physics and RHIC data
- JIMWLK evolution in the Gaussian approximation
- HERA-data in the light of small x evolution with state of the art NLO input
- Forward dihadron correlations in the Gaussian approximation of JIMWLK