English

Is it Possible to Unify the QCD Evolution of Structure Functions in $X$ and $Q^2$ ?

High Energy Physics - Phenomenology 2007-05-23 v1

Abstract

We start from the two existing QCD evolution equations for structure functions, the BFKL and DGLAP equations, and discuss the theoretical hints for a unifying picture of the evolution in xx and Q2.Q^2. The main difficulty is due to the property of angular ordering of the gluon radiation driving the evolution and the cancellation of the related collinear singularities. At the leading log 1/x\log\ 1/x and leading log Q2\log \ Q^2 accuracy, we find a unified set of equations satisfying the constraints.

Cite

@article{arxiv.hep-ph/9506401,
  title  = {Is it Possible to Unify the QCD Evolution of Structure Functions in $X$ and $Q^2$ ?},
  author = {R. Peschanski},
  journal= {arXiv preprint arXiv:hep-ph/9506401},
  year   = {2007}
}

Comments

7 pages, latex, no figures; Contribution to the XXXth Rencontres de MORIOND - March, 19-26,1995