Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the charge asymmetry in dileptonic decays of top quark
  pairs in proton-proton collisions at 7 TeV using the ATLAS detector   A measurement of the top--antitop ($t\bar{t}$) charge asymmetry is presented
using 2011 LHC data collected by the ATLAS detector corresponding to an
integrated luminosity of 4.6 fb$^{-1}$ at a centre-of-mass energy of 7 TeV. The
analysis is performed in the dilepton channel, and two different observables
are studied: $A^{\ell\ell}_{\mathrm{C}}$, based on the identified charged
leptons, and $A^{t\bar{t}}_{\mathrm{C}}$, based on the reconstructed $t\bar{t}$
final state. The asymmetries, measured to be $A^{\ell\ell}_{\mathrm{C}} = 0.024
\pm 0.015 \mathrm{(stat.)} \pm 0.009 \mathrm{(syst.)}$ and
$A^{t\bar{t}}_{\mathrm{C}} = 0.021 \pm 0.025 \mathrm{(stat.)} \pm 0.017
\mathrm{(syst.)}$, are in agreement with the Standard Model predictions.

20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg