Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The top-quark's running mass   We discuss the direct determination of the running top-quark mass from
measurements of the total cross section of hadronic top-quark pair-production.
The theory predictions in the MSbar scheme are very stable under scale
variations and show rapid apparent convergence of the perturbative expansion.
These features are explained by studying the underlying parton dynamics.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom