Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charged shells and elementary particles   We review the General Relativistic model of a (quasi) point-like particle
represented by a massive shell of electrically charged matter, which displays
an ADM mass M equal to the electric charge |Q| in the small-volume limit. We
employ the Israel-Darboux's junction equations to explicitly derive this
result, and then study the modifications introduced by the existence of a
minimum length scale lambda. For lambda of the order of the Planck length (or
larger), we find that the ADM mass becomes equal to the bare mass m_0 of the
shell, like it occurs for the neutral case.

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The categories of this paper are: econ
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
2
The categories of this paper are: math
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The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: stat
33
The categories of this paper are: plasm-ph