$F_2/xG(x,Q^2)$ Ratio at Small $x$ and the Role of the Contribution from Infrared Region

M. G. Ryskin; Yu. M. Shabelski; A. G. Shuvaev

paper

$F_{2} / x G (x, Q^{2})$ Ratio at Small $x$ and the Role of the Contribution from Infrared Region

arXiv:hep-ph/9512297

Abstract

We consider the light quark electroproduction cross section and show that the contribution coming from the infrared ( $q_{T} < 300 M e V$ ) region is not negligible. It changes the $F_{2} (x, Q^{2}) / x G (x, Q^{2})$ ratio by 20-30\% (or even more) for small $x$ and $Q^{2} \sim 4 G e V^{2}$ .

arXiv comment12 pages (LaTeX) + 8 uuencoded-compressed-tar postcript figures in a separate file

F2​/xG(x,Q2) Ratio at Small x and the Role of the Contribution from Infrared Region

Abstract

$F_{2} / x G (x, Q^{2})$ Ratio at Small $x$ and the Role of the Contribution from Infrared Region