High energy factorization in nucleus-nucleus collisions II - Multigluon correlations
arXiv:0807.1306 · doi:10.1103/PhysRevD.78.054020
Abstract
We extend previous results (arXiv:0804.2630 [hep-ph]) on factorization in high-energy nucleus-nucleus collisions by computing the inclusive multigluon spectrum to next-to-leading order. The factorization formula is strictly valid for multigluon emission in a slice of rapidity of width ΔY< 1/α_s. Our results show that often neglected disconnected graphs dominate the inclusive multigluon spectrum and are essential to prove factorization for this quantity. These results provide a dynamical framework for the Glasma flux tube picture of the striking "ridge"-like correlation seen in heavy ion collisions.
29 pages
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Cited by in corpus (6)
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- High energy factorization in nucleus-nucleus collisions III. Long range rapidity correlations
- Three-particle correlation from glasma flux tubes
- Two-Gluon Production and Longitudinal Correlations in the Color Glass Condensate
- Inclusive Gluon Production in the QCD Reggeon Field Theory: Pomeron Loops Included
- The glasma initial state and JIMWLK factorization