Heavy-quark contributions to the ratio F_L/F_2 at low x

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dc.creatorIllarionov, Alexey Yu.
dc.creatorKniehl, Bernd A.
dc.creatorKotikov, Anatoly V.
dc.date2008-01-09
dc.date.accessioned2026-07-07T11:39:50Z
dc.date.available2026-07-07T11:39:50Z
dc.descriptionWe study the heavy-quark contribution to the proton structure functions F_2^i(x,Q^2) and F_L^i(x,Q^2), with i=c,b, for small values of Bjorken's x variable at next-to-lading order and provide compact formulas for their ratios R_i=F_L^i/F_2^i that are useful to extract F_2^i(x,Q^2) from measurements of the doubly differential cross section of inclusive deep-inelastic scattering at DESY HERA. Our approach naturally explains why R_i is approximately independent of x and the details of the parton distributions in the small-x regime.
dc.description11 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0801.1502
dc.identifierhttp://arxiv.org/abs/0801.1502
dc.identifierPhys.Lett.B663:66-72,2008
dc.identifierdoi:10.1016/j.physletb.2008.02.068
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200065
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleHeavy-quark contributions to the ratio F_L/F_2 at low x
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