Global reanalysis of nPDFs

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dc.creatorEskola, K. J.
dc.creatorKolhinen, V. J.
dc.creatorPaukkunen, H.
dc.creatorSalgado, C. A.
dc.date2007-06-30
dc.date.accessioned2026-07-07T11:41:23Z
dc.date.available2026-07-07T11:41:23Z
dc.descriptionIn this talk, we present the results from our recent global reanalysis of nuclear parton distribution functions (nPDFs), where the DGLAP-evolving nPDFs are constrained by nuclear hard process data from deep inelastic $l+A$ scattering (DIS) and the Drell-Yan (DY) process in $p+A$ collisions, and by sum rules. The main improvements over our earlier work {\em EKS98} are the automated $χ^2$ minimization, better controllable fit functions and possibility for error estimates. The obtained 16-parameter fit to N=514 datapoints is good, $χ^2/{\rm d.o.f}=0.82$. Fit quality comparison and the error estimates obtained show that the old {\em EKS98} parametrization is fully consistent with the present automated reanalysis. Comparison with other global nPDF analyses is presented as well. Within the DGLAP framework we also discuss the possibility of incorporating a clearly stronger gluon shadowing, which is suggested by the RHIC BRAHMS data from d+Au collisions.
dc.description10 pages, talk given at the workshop "High-pT physics at LHC", March 23-27, 2007, Department of Physics, University of Jyvaskyla, Finland
dc.identifierhttps://arxiv.org/abs/0707.0060
dc.identifierhttp://arxiv.org/abs/0707.0060
dc.identifierPoSLHC07:018,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200518
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGlobal reanalysis of nPDFs
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