Soft-gluon resummation effects on parton distributions

Details Soft-gluon resummation effects on parton distributions Soft-gluon resummation effects on parton distributions

2005-06-27

arxiv.org/abs/hep-ph/0506278v2

Phys.Rev. D72 (2005) 074017

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 10 figures. Few changes after referee report, one figure and references added, published version

Scientific paper

10.1103/PhysRevD.72.074017

We gauge the impact of soft-gluon resummation on quark distributions by performing a simple fit of Deep Inelastic Scattering structure function data using next-to-leading order (NLO) and next-to-leading-logarithmic (NLL)-resummed coefficient functions. We make use of NuTeV charged-current data, as well as New Muon Collaboration (NMC) and Bologna-CERN-Dubna-Munich-Saclay (BCDMS) neutral-current results, which probe large values of x. Our results suggest that the inclusion of resummation effects in global fits of parton distributions is both feasible and desirable, in order to achieve at large x the accuracy goals of the LHC physics program.

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