Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Highlights from BNL and RHIC 2017   Highlights of news from Brookhaven National Laboratory (BNL) and results from
the Relativistic Heavy Ion Collider (RHIC) in the period July 2016-2017 are
presented. 2017 was the 70th birthday of Brookhaven National Laboratory which
was built starting in 1947 on Camp Upton, a military base in 1917 for World War
I and in September 1944 for World War II. Highlights in 70 years of research at
BNL are presented, which include 6 Nobel Prizes as well as other important
discoveries and inventions. RHIC is the world's only polarized proton collider
and a review of the establishment of the Riken BNL Research Center with
research focus on spiin physics at RHIC is presented. Discoveries at RHIC in
Jet Quenching and the Quark Gluon Plasma are reviewed as well as new ideas on
flow in small systems including a measurement of the vorticity of the QGP via
polarization of $\Lambda$ hyperons. An attempt at measuring the transport
coefficient $\hat{q}$ of the Quark Gluon Plasma from azimuthal broadening of
high $p_T$ di-hadron pairs is presented.

31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an