Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black hole gas in TeV-gravity models   In a plasma at temperature close to the fundamental scale a small fraction of
particles will experience transplanckian collisions that may result in
microscopic black holes (BHs). We study the dynamics of a system (a black hole
gas) defined by radiation at a given temperature coupled to a distribution of
BHs of different mass. Our analysis includes the production of BHs in
photon-photon collisions, BH evaporation, the absorption of radiation,
collisions of two BHs to give a larger one, and the effects of the expansion.
We find that the system may follow two different generic paths depending on the
initial temperature of the plasma.

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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat