Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beam Energy Dependence of Azimuthal Anisotropy at RHIC-PHENIX   Recent PHENIX measurements of the elliptic (v2) and hexadecapole (v4) Fourier
flow coefficients for charged hadrons as a function of transverse momentum
(pT), collision centrality and particle species are presented and compared with
results from the PHOBOS and STAR collaborations respectively. The status of
extensions to future PHENIX measurements at lower beam energies is also
discussed.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn