Gluon shadowing in the low x region probed by the LHC

Details Gluon shadowing in the low x region probed by the LHC Gluon shadowing in the low x region probed by the LHC

2001-01-10

arxiv.org/abs/hep-ph/0101099v2

Phys.Lett. B508 (2001) 58-64

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 8 pages including 1 figure, second version with extra comments and references, accepted by Physics Letters B

Scientific paper

10.1016/S0370-2693(01)00235-0

Starting from an unintegrated gluon distribution which satisfies a `unified' equation which embodies both BFKL and DGLAP behaviour, we compute the shadowing corrections to the integrated gluon in the small x domain that will be accessible at the LHC. The corrections are calculated via the Korchegov equation, which incorporates the leading ln(1/x) triple-Pomeron vertex, and are approximately resummed using a simple Pade technique. We find that the shadowing corrections to xg(x,Q^2) are rather small in the HERA domain, but lead to a factor of 2 suppression in the region x \sim 10^-6, Q^2 \sim 4 GeV^2 accessible to experiments at the LHC.

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