The Intrinsic glue distribution at very small x
Jun, 1996
31 pages
Published in:
- Phys.Rev.D 55 (1997) 5414-5428
e-Print:
- hep-ph/9606337 [hep-ph]
Report number:
- TPI-MINN-96-1429,
- NUC-MINN-96-10-T,
- TPI-MINN-96-08
Citations per year
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 Weizs\"acker-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.Note:
- 31 pages, Latex2e, 5 postecript figure included, using epsf, latexsym, amssymb and fancyheadings Report-no: HEP-MINN-96-1429, NUC-MINN-96/10-T, HEP-MINN-96/08
- 24.85.+p
- 25.75.Dw
- 12.38.Bx
- 12.38.Mh
- gluon: momentum spectrum
- momentum spectrum: small-x
- renormalization group
- light cone gauge
- transverse momentum
- Feynman graph
References(20)
Figures(0)