6533b7dcfe1ef96bd1272a35

RESEARCH PRODUCT

Renormalization group evolution of multi-gluon correlators in high energy QCD

Jamal Jalilian-marianJamal Jalilian-marianTuomas LappiTuomas LappiAdrian DumitruAdrian DumitruAdrian DumitruRaju VenugopalanBjoern Schenke

subject

PhysicsQuantum chromodynamicsNuclear and High Energy PhysicsParticle physicsta114010308 nuclear & particles physicsHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyFOS: Physical sciencesInelastic scatteringRenormalization group01 natural sciencesGluonColor-glass condensateLangevin equationRenormalizationHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesHigh Energy Physics::Experiment010306 general physicsRelativistic Heavy Ion ColliderNuclear Experiment

description

Many-body QCD in leading high energy Regge asymptotics is described by the Balitsky-JIMWLK hierarchy of renormalization group equations for the x evolution of multi-point Wilson line correlators. These correlators are universal and ubiquitous in final states in deeply inelastic scattering and hadronic collisions. For instance, recently measured di-hadron correlations at forward rapidity in deuteron-gold collisions at the Relativistic Heavy Ion Collider (RHIC) are sensitive to four and six point correlators of Wilson lines in the small x color fields of the dense nuclear target. We evaluate these correlators numerically by solving the functional Langevin equation that describes the Balitsky-JIMWLK hierarchy. We compare the results to mean-field Gaussian and large N_c approximations used in previous phenomenological studies. We comment on the implications of our results for quantitative studies of multi-gluon final states in high energy QCD.

yearjournalcountryeditionlanguage
2011-08-24Physics Letters B
10.1016/j.physletb.2011.11.002https://doi.org/10.1016/j.physletb.2011.11.002