Deep Inelastic Structure Functions at small x
Abstract
Explicit expressions for the non-singlet and singlet structure functions g_1 in the small-x region are obtained. They include the total resummation of the double- and single- logarithms of x and account for the running QCD coupling effects. Both the non-singlet and singlet structure functions are Regge behavied asymptotically, with the intercepts predicted in agreement with experiments. A detailed comparison with the DGLAP evolution equations for different values of x and Q^2 is performed. Finally, the role played by singular terms in DGLAP fits is discussed and explicitly shown to mimic the resummation of leading logarithms at small x.
Keywords
Cite
@article{arxiv.hep-ph/0603006,
title = {Deep Inelastic Structure Functions at small x},
author = {B. I. Ermolaev and M. Greco and S. I. Troyan},
journal= {arXiv preprint arXiv:hep-ph/0603006},
year = {2016}
}
Comments
Talk given by M. Greco at XII Lomonosov Conference on Elementary Particle Physics, Moscow, August, 25-31, 2005. 4 pages