Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Impact of ATLAS $V$ + jets data on PDF fits   This proceeding presents a new set of proton parton distribution functions,
ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading-order in
QCD. The new datasets considered are the ATLAS measurements of $W^{\pm}$ and
$Z$ boson production in association with jets in $pp$ collisions at $\sqrt{s}$
= 8 TeV at the LHC with integrated luminosities of 20.2 fb$^{-1}$ and 19.9
fb$^{-1}$ respectively. The analysis also considers the ATLAS measurements of
differential $W^{\pm}$ and $Z$ boson production at $\sqrt{s}$ = 7 TeV with an
integrated luminosity of 4.6 fb$^{-1}$ and deep-inelastic scattering data from
$e^{\pm}p$ collisions at the HERA accelerator. An improved determination of the
sea-quark densities at high Bjorken $x$ is shown, while confirming a
strange-quark density of similar size as the up-and down-sea quark densities in
the range $x\sim$ 0.02 found by previous ATLAS analyses.

31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
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The categories of this paper are: q-alg