Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top quark properties   The multi-purpose experiments at CERN's Large Hadron Collider have a very
rich programme in top quark physics. The large amount of data allows for
measuring the top quark properties with an unprecedented precision. This
document presents some of the properties that have been measured using top
quark pair events produced in proton-proton collisions with a centre-of-mass
energy of 13 TeV. The focus lies on the measurements of the colour flow, the
charge asymmetry and spin correlations in top quark pair events.

19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
18
The categories of this paper are: econ
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph