| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1852374 | Physics Letters B | 2008 | 7 Pages |
Abstract
We study the heavy-quark contribution to the proton structure functions F2i(x,Q2) and FLi(x,Q2), with i=c,b, for small values of Bjorken's x variable at next-to-lading order and provide compact formulas for their ratios Ri=FLi/F2i that are useful to extract F2i(x,Q2) from measurements of the doubly differential cross section of inclusive deep-inelastic scattering at DESY HERA. Our approach naturally explains why Ri is approximately independent of x and the details of the parton distributions in the low-x regime.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Alexey Yu. Illarionov, Bernd A. Kniehl, Anatoly V. Kotikov,