Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Single-particle velocity distributions of collisionless, steady-state
  plasmas must follow Superstatistics   The correct modelling of velocity distribution functions for particles in
steady-state plasmas is a central element in the study of nuclear fusion and
also in the description of space plasmas. In this work, a statistical
mechanical formalism for the description of collisionless plasmas in a steady
state is presented, based solely on the application of the rules of probability
and not relying on the concept of entropy. Beck and Cohen's superstatistical
framework is recovered as a limiting case, and a "microscopic" definition of
inverse temperature $\beta$ is given. Non-extensivity is not invoked a priori
but enters the picture only through the analysis of correlations between parts
of the system.

12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an