Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First Run II Measurement of the W Boson Mass with CDF   The CDF collaboration has analyzed ~200/pb of Tevatron Run II data taken
between February 2002 and September 2003 to measure the W boson mass. With a
sample of 63964 W->e nu decays and 51128 W->mu nu decays, we measure M_W =
80413+-34(stat)+-34(syst) MeV. The total measurement uncertainty of 48 MeV
makes this result the most precise single measurement of the W boson mass to
date.

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The categories of this paper are: bayes-an
3
The categories of this paper are: physics
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-th
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The categories of this paper are: q-alg
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th