Computing quark and gluon distribution functions for very large nuclei
Abstract
We argue that the distribution functions for quarks and gluons are computable at small x for sufficiently large nuclei, perhaps larger than can be physically realized. For such nuclei, we argue that weak coupling methods may be used. We show that the computation of the distribution functions can be recast as a manybody problem with a modified propagator, a coupling constant which depends on the multiplicity of particles per unit rapidity per unit area, and for nonAbelian gauge theories, some extra mediadependent vertices. We explicitly compute the distribuiton function for gluons to lowest order, and argue how they may be computed in higher order.
 Publication:

Physical Review D
 Pub Date:
 March 1994
 DOI:
 10.1103/PhysRevD.49.2233
 arXiv:
 arXiv:hepph/9309289
 Bibcode:
 1994PhRvD..49.2233M
 Keywords:

 13.60.Hb;
 12.38.Mh;
 Total and inclusive cross sections;
 Quarkgluon plasma;
 High Energy Physics  Phenomenology;
 Nuclear Theory
 EPrint:
 TPIMINN9344/T, NUCMINN9324/T, HEPMINN1220/93, LaTeX, 26 pages