Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: tops at NLO and NNLO   We briefly review the recent progress in the study of higher order
corrections to hadron scattering processes involving top quark pairs in the
final state. In particular, we discuss the Monte-Carlo simulation of the $pp
\to t \bar{t} b \bar{b}$ process at the next-to-leading order with the help of
the {\tt Helac-NLO} system, and the status of the soft-gluon resummation
program for $pp \to t \bar{t}$ near threshold at the next-to-next-to-leading
order.

21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom