Impact of large-x resummation on parton distribution functions

Details Impact of large-x resummation on parton distribution functions Impact of large-x resummation on parton distribution functions

2005-07-04

arxiv.org/abs/hep-ph/0507042v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 5 figures. Talk given at DIS 2005, XIII Workshop on Deep Inelastic Scattering, April 27-May 1, 2005, Madison, WI, U.S

Scientific paper

We investigate the effect of large-x resummation on parton distributions by performing a fit of Deep Inelastic Scattering data from the NuTeV, BCDMS and NMC collaborations, using NLO and NLL soft-resummed coefficient functions. Our results show that soft resummation has a visible impact on quark densities at large x. Resummed parton fits would therefore be needed whenever high precision is required for cross sections evaluated near partonic threshold.

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