Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decreasing elliptic flow at the LHC: Calculations in a parton
  recombination approach   We apply the parton recombination approach to study the energy dependence of
the elliptic flow, v_2 in heavy ion collisions from AGS to LHC energies. The
relevant input quantities ($T, \mu_B, \eta_T$) at the various center of mass
energies are obtained from fits to the available data. The model yields a good
description of the integrated v_2 data for charged particles at midrapidity
from AGS to RHIC energies. In stark contrast to the current expectations, we
observe a decrease of the integrated v_2 values above the highest RHIC energy.
Thus, we predict a decrease of v_2 at LHC energies compared to the RHIC
results. This drop is attributed to negative v_2 values for the underlying
parton distributions at low to moderate transverse momenta that develops if the
transverse flow velocity is high enough. At energies above the LHC regime, the
present approach predicts even negative values for the integrated v_2.

2
The categories of this paper are: math
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an