Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tau Decay Determination of the Strange Quark Mass   The recent ALEPH measurements of the inclusive Cabibbo--suppressed decay
width of the $\tau$ and several moments of its invariant mass distribution are
used to determine the value of the strange quark mass. We obtain, in the
$\bar{\rm MS}$ scheme, $m_s(M_\tau^2) = (119\pm 24)$ MeV, which corresponds to
$ m_s(1 {\rm GeV}^2) = (164 \pm 33) {\rm MeV}, m_s(4 {\rm GeV}^2) = (114\pm 23)
{\rm MeV} $.

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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
2
The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
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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: q-fin
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: astro-ph