Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy loss at NLO in a high-temperature Quark-Gluon Plasma   We present an extension of the Arnold-Moore-Yaffe kinetic equations for jet
energy loss to NLO in the strong coupling constant. A novel aspect of the NLO
analysis is a consistent description of wider-angle bremsstrahlung
(semi-collinear emissions), which smoothly interpolates between 2<->2
scattering and collinear bremsstrahlung. We describe how many of the
ingredients of the NLO transport equations (such as the drag coefficient) can
be expressed in terms of Wilson line operators and can be computed using a
Euclidean formalism or sum rules, both motivated by the analytic properties of
amplitudes at light-like separations. We conclude with an outlook on the
computation of the shear viscosity at NLO.

18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org