Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurements of the charge asymmetry in top-quark pair production in the
  dilepton final state at $\sqrt{s}=8$ TeV with the ATLAS detector   Measurements of the top--antitop quark pair production charge asymmetry in
the dilepton channel, characterized by two high-${p}_{\rm{T}}$ leptons
(electrons or muons), are presented using data corresponding to an integrated
luminosity of 20.3 $\textrm{fb}^{-1}$ from $pp$ collisions at a center-of-mass
energy $\sqrt{s} = 8$~TeV collected with the ATLAS detector at the Large Hadron
Collider at CERN. Inclusive and differential measurements as a function of the
invariant mass, transverse momentum, and longitudinal boost of the $t\bar{t}$
system are performed both in the full phase space and in a fiducial phase space
closely matching the detector acceptance. Two observables are studied:
$A_C^{\ell \ell}$ based on the selected leptons and $A_C^{t\bar{t}}$ based on
the reconstructed $t\bar{t}$ final state. No significant deviation from the
Standard Model expectations is observed.

30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph