Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The impact of the LHC Z-boson transverse momentum data on PDF
  determinations   The LHC has recently released precise measurements of the transverse momentum
distribution of the Z-boson that provide a unique constraint on the structure
of the proton. Theoretical developments now allow the prediction of these
observables through next-to-next-to-leading order (NNLO) in perturbative QCD.
In this work we study the impact of incorporating these latest advances into a
determination of parton distribution functions (PDFs) through NNLO including
the recent ATLAS and CMS 7 TeV and 8 TeV $p_T^Z$ data. We investigate the
consistency of these measurements in a global fit to the available data and
quantify the impact of including the $p_T^Z$ distributions on the PDFs. The
inclusion of these new data sets significantly reduces the uncertainties on
select parton distributions and the corresponding parton-parton luminosities.
In particular, we find that the $p_T^Z$ data ultimately leads to a reduction of
the PDF uncertainty on the gluon-fusion and vector-boson fusion Higgs
production cross sections by about 30%, while keeping the central values nearly
unchanged.

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The categories of this paper are: math
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph