Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Motion of Confined Particles   We carry out numerical evaluations of the motion of classical particles in
Minkowski Space $\mathbb{M}^{4}$ which are confined to the inside of a bag. In
particular, we analyze the structure of the paths evolving from the breaking of
the dilatation symmetry, the conformal symmetry and the combination of both
together. The confining forces arise directly from the corresponding
nonconserved currents. We demonstrate in our evaluations that these particles
under certain initial conditions move toward the interior of the bag.

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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: mtrl-th
2
The categories of this paper are: math
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin