Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Progress in the CTEQ-TEA NNLO global QCD analysis   We present the new CTEQ-TEA global analysis of quantum chromodynamics (QCD).
In this analysis, parton distribution functions (PDFs) of the nucleon are
determined within the Hessian method at the next-to-next-to-leading order
(NNLO) in perturbative QCD, based on the most recent measurements from the
Large Hadron Collider (LHC) and a variety of world collider data. Because of
difficulties in fitting both the ATLAS 7 and 8 TeV $W$ and $Z$ vector boson
production cross section data, we present four families of (N)NLO CTEQ-TEA
PDFs, named CT18, A, X and Z PDFs, respectively. We study the impact of the
CT18 family of PDFs on the theoretical predictions of standard candle cross
sections at the LHC.

27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics