Smallxgluons in nuclei and hadrons

Abstract

We numerically study the effects of high gluon density at small x on the evolution of gluon distribution function in both hadrons and nuclei. Using a newly derived, Wilson renormalization group-based evolution equation which includes n to 1 gluon ladder fusion, we find significant reduction in nuclear gluon distribution function for large nuclei at zero impact parameter at energies relevant for RHIC and LHC experiments.

Nonlinear corrections to the DGLAP equations in view of the HERA data

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The Electron Ion Collider. A High Luminosity Probe of the Partonic Substructure of Nucleons and Nuclei.

“…In addition, with and the EIC researchers can determine whether shadowing is entirely a leading twist phenomenon or if there are large higher twist perturbative corrections. Some saturation models, for instance, predict that perturbative contributions to shadowing will become large as one goes to smaller x [98]. Isolating perturbative from non-perturbative contributions to shadowing will be an interesting theoretical and experimental challenge.…”