Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Precise measurement of Br(tau^- -> K^*0(892) K^- nu_tau) and the mass
  and width of the K^*0(892) meson   Using the high statistics tau data sample recorded in the Belle experiment at
KEKB, we have greatly improved the precision of the branching fraction
  Br(tau^- -> K^*0(892) K^- nu_tau) = (1.56+-0.02+-0.09)x10^-3, while the mass
and width of the K^*0(892) meson are measured to be (895.10+-0.27+-0.31)
MeV/c^2 and (47.23+-0.49+-0.79) MeV/c^2, respectively, with better accuracy
than the PDG world average values. The first measurement of the decay tau^- ->
K^*0(892) K^- pi^0 nu_tau is also reported with a branching fraction of
Br(tau^- -> K^*0(892) K^- pi^0 nu_tau)=(2.39+-0.46+-0.26)x10^-5.

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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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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: bayes-an
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The categories of this paper are: supr-con
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph