Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Development of a Turbulent Outflow During Electron-Positron Magnetic
  Reconnection   The mass symmetry between the two species in electron-positron (pair) plasmas
has interesting consequences for collisionless magnetic reconnection because
the Hall term, which plays a crucial role in supporting fast reconnection in
electron-proton plasmas, vanishes. We perform kinetic simulations of pair
reconnection in systems of various sizes, show that it remains fast, and
identify the reason why this occurs. For sufficiently large systems a
Weibel-like temperature anisotropy instability develops in the outflow from the
X-point that causes the current layer to broaden and form a Petschek-like open
outflow. We discuss the parameter regimes in which pair reconnection should be
fast and the implications for astrophysical pair plasmas.

23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph