EPS09 – Global NLO Analysis of Nuclear PDFs and Their Uncertainties
نویسندگان
چکیده
منابع مشابه
EPS09 - Global NLO analysis of nuclear PDFs
In this talk, we present our recent work on next-to-leading order (NLO) nuclear parton distribution functions (nPDFs), which we call EPS09. As an extension to earlier NLO analyses, we complement the deep inelastic scattering and Drell-Yan dilepton data by inclusive midrapidity pion production measurements from RHIC to reduce the otherwize large freedom of the nuclear gluon densities. In additio...
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A brief overview of the global DGLAP analyses of the nuclear parton distribution functions is given. Although all the current global nPDF sets describe RF2(x,Q 2) well in the large-x region where the data exist, variations between their parton distributions can be substantial.
متن کاملGlobal NLO Analysis of Nuclear Parton Distribution Functions
Nuclear parton distribution functions (NPDFs) are determined by a global analysis of experimental measurements on structure-function ratios FA 2 /F A 2 and Drell-Yan cross section ratios σ A DY /σA ′ DY , and their uncertainties are estimated by the Hessian method. The NPDFs are obtained in both leading order (LO) and next-to-leading order (NLO) of αs. As a result, valence-quark distributions a...
متن کاملar X iv : 0 90 3 . 19 56 v 1 [ he p - ph ] 1 1 M ar 2 00 9 EPS 09 - Global NLO analysis of nuclear PDFs and their uncertainties
In this talk, we introduce our recently completed next-to-leading order (NLO) global analysis of the nuclear parton distribution functions (nPDFs) called EPS09 — a higher order successor to the well-known leading-order (LO) analysis EKS98 and also to our previous LO work EPS08. As an extension to similar global analyses carried out by other groups, we complement the data from deep inelastic l +...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2009
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2009.10.054