Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top Momentum and Extra Soft Jets   Top pairs produced at the Tevatron may be accompanied by extra jets due to
radiation of soft gluons. Whether these jets should be included in top momentum
reconstruction depends on the source of the gluons, which can be radiated off
the initial partons, the final state $b$ quarks, or the intermediate top
quarks. We compute soft gluon distributions and discuss their implications for
top mass measurements.

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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: astro-ph
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The categories of this paper are: math
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The categories of this paper are: econ