Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Work distribution of an expanding gas and transverse energy production
  in relativistic heavy ion collisions   The work distribution of an expanding extreme relativistic gas is shown to be
a gamma distribution with a different shape parameter as compared with its
non-relativistic counterpart. This implies that the shape of the transverse
energy distribution in relativistic heavy ion collisions depends on the
particle contents during the evolution of the hot and dense matter. Therefore,
transverse energy fluctuations provide additional insights into the Quark-Gluon
Plasma produced in these collisions.

28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph