Dynamical parton distributions of the nucleon and very small-x physics
By M. Glück, P. Jimenez-Delgado, E. Reya. 2007
160 citations recorded by the source corpus.
Utilizing recent DIS measurements (F2,L) and data on dilepton and high-ET jet production we determine the dynamical parton distributions of the nucleon generated radiatively from valence-like positive input distributions at optimally chosen low resolution scales. These are compared with ‘standard’ distributions generated from positive input distributions at some fixed and higher resolution scale. It is shown that up to the next-to-leading order NLO($\overline{\text{MS}}$, DIS) of perturbative QCD considered in this paper, the uncertainties of the dynamical distributions are, as expected, smaller than those of their standard counterparts. This holds true in particular in the presently unexplored extremely small-x region relevant for evaluating ultrahigh energy cross sections in astrophysical applications. It is noted that our new dynamical distributions are compatible, within the presently determined uncertainties, with previously determined dynamical parton distributions.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/d1dfc0babcf73c38cb9ddcd38c015bee0f2f603b
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Citations in the corpus
- Progress in the Determination of the Partonic Structure of the Proton (2013, methodology): “The NLO version of the JR09 fit, GJR08 [32], does include some Tevatron jet data.”
- PDF4LHC recommendations for LHC Run II (2015, background): “The most recent sets from these groups at the time of the previous recommendation were ABKM09 [16] and (G)JR09 [19, 44].”