Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Visualizing the Mass and Width Spectrum of Unstable Particles   Several graphical representations of the mass and width spectrum of unstable
subatomic particles are presented. Such plots are useful tools for introducing
students to the particle zoo and provide students an alternate way to organize
conceptually what can seem like an overwhelming amount of data. In particular,
such graphs highlight phenomenological features of unstable particles
characteristic of different energy and time scales.

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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: solv-int
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The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: math
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The categories of this paper are: q-bio
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The categories of this paper are: econ