Article ID Journal Published Year Pages File Type
8197931 Physics Letters B 2006 4 Pages PDF
Abstract
Power-suppressed corrections to parton evolution may affect the theoretical accuracy of current determinations of parton distributions. We study the role of multigluon-exchange terms in the extraction of the gluon distribution for the large hadron collider (LHC). Working in the high-energy approximation, we analyze multigluon contributions in powers of 1/Q2. We find a moderate, negative correction to the structure function's derivative dF2/dlnQ2, characterized by a slow fall-off in the region of low to medium Q2 relevant for determinations of the gluon at small momentum fractions.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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