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arXiv · hep-ph/9606337

The Intrinsic Glue Distribution at Very Small x

Jamal Jalilian-Marian·Alex Kovner·Larry McLerran·Heribert Weigert
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Abstract

We compute the distribution functions for gluons at very small x and not too large values of transverse momenta. We extend the McLerran-Venugopalan model by using renormalization group methods to integrate out effects due to those gluons which generate an effective classical charge density for Weizsäcker-Williams fields. We argue that this model can be extended from the description of nuclei at small x to the description of hadrons at yet smaller values of x. This generates a Lipatov like enhancement for the intrinsic gluon distribution function and a non-trivial transverse momentum dependence as well. We estimate the transverse momentum dependence for the distribution functions, and show how the issue of unitarity is resolved in lepton-nucleus interactions.

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Jamal Jalilian-Marian, Alex Kovner, Larry McLerran, Heribert Weigert. 1996-06-14. The Intrinsic Glue Distribution at Very Small x. https://doi.org/10.1103/physrevd.55.5414

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