Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top-Quark Charge Asymmetry Goes Forward: Two New Observables for Hadron
  Colliders   We propose two new observables to measure the charge asymmetry in hadronic
top-quark pair production in association with a hard jet. The incline
asymmetry, based on the inclination between the planes of initial- and
final-state momenta, probes the charge asymmetry in the quark-antiquark
channel. Compared to the hitherto investigated rapidity asymmetries, the
incline asymmetry provides improved access to the partonic charge asymmetry at
both the Tevatron and the LHC. The energy asymmetry, based on the energy
difference between top and antitop quarks, for the first time allows us to
probe the charge asymmetry in the quark-gluon channel at the LHC. In quantum
chromodynamics, asymmetries of up to -12% at the leading order are achievable
with appropriate cuts. Top-pair plus jet production thus has the potential to
become the discovery channel of the charge asymmetry in proton-proton
collisions.

15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat