Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Event-shape fluctuations and flow correlations in ultra-relativistic
  heavy-ion collisions   I review recent measurements of a large set of flow observables associated
with event-shape fluctuations and collective expansion in heavy ion collisions.
First, these flow observables are classified and experiment methods are
introduced. The experimental results for each type of observables are then
presented and compared to theoretical calculations. A coherent picture of
initial condition and collective flow based on linear and non-linear
hydrodynamic responses is derived, which qualitatively describe most
experimental results. I discuss new types of fluctuation measurements that can
further our understanding of the event-shape fluctuations and collective
expansion dynamics.

28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph