Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reanalysis of the top-quark pair hadroproduction and a precise
  determination of the top-quark pole mass at the LHC   In this paper, we calculate the $t\bar{t}$ pQCD production cross-section at
NNLO and determine the top-quark pole mass from recent measurements at the LHC
at $\sqrt{S}=13$ TeV center-of-mass energy to high precision by applying the
Principle of Maximum Conformality (PMC). The PMC provides a systematic method
which rigorously eliminates QCD renormalization scale ambiguities by summing
the nonconformal $\beta$ contributions into the QCD coupling constant. The PMC
predictions satisfy the requirements of renormalization group invariance,
including renormalization scheme independence, and the PMC scales accurately
reflect the virtuality of the underlying production subprocesses. By using the
PMC, an improved prediction for the $t\bar{t}$ production cross-section is
obtained without scale ambiguities, which in turn provides a precise value for
the top-quark pole mass. Moreover, the predictive power of PMC calculations
that the magnitude of higher-order PMC predictions are well within the error
bars predicted from the known lower-order has been demonstrated for the
top-quark pair production. The resulting determination of the top-quark pole
mass $m_t^{\rm pole}=172.5\pm1.4$ GeV from the LHC measurement at $\sqrt{S}=13$
TeV is in agreement with the current world average cited by the Particle Data
Group (PDG). The PMC prediction provides an important high-precision test of
the consistency of pQCD and the SM at $\sqrt{S}=13$ TeV with previous LHC
measurements at lower CM energies.

6
The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys