Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equilibrium probability distribution of a conductive sphere's floating
  charge in a collisionless, drifting Maxwellian plasma   A dust grain in a plasma has a fluctuating electric charge, and past work
concludes that spherical grains in a stationary, collisionless plasma have an
essentially Gaussian charge probability distribution. This paper extends that
work to flowing plasmas and arbitrarily large spheres, deriving analytic charge
probability distributions up to normalizing constants. We find that these
distributions also have good Gaussian approximations, with analytic expressions
for their mean and variance.

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The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
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The categories of this paper are: eess
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an