Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Jet Quenching in Heavy-Ion Collisions - The Transition Era from RHIC to
  LHC   A status report on the jet quenching physics in heavy-ion collisions is given
as it appears after more than 10 years of collecting and analysing data at the
Relativistic Heavy Ion Collider (RHIC) and ~1.5 years of physics at the Large
Hadron Collider (LHC). The (theoretical) predictions and expectations before
the start of the LHC program are contrasted with the most recent experimental
results, focussing on the nuclear modification factor R_{AA}, the elliptic flow
v_2 of high-p_T particles, and on the problem of initial conditions.

34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph