Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy Loss and Medium Response via Two Particle Correlations in Heavy
  Ion Collisions   In these proceedings, pair correlations between high pT final-state particles
in central and mid-central Au+Au are presented as a function of trigger-angle
with respect to the reaction plane. Jet tomography results like these add
another dimension of experimental discrimination to energy loss calculations
and initial state geometric descriptions. The observed increasing away-side
suppression with respect to the nuclear overlap demonstrate that back-to-back
production at high pT in mid-central collisions is not dominated by unmodified
production produced tangentially to the nuclear overlap. Furthermore, these
results present a challenge to theories that predict only a weak variation due
to angle with respect to the reaction plane.

35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph