Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heavy Flavors Results From SLD   We present recent measurements by SLD of the branching fractions of B hadrons
to states with 0 and 2 open charm hadrons, BR_{0D} and BR_{2D}, from which both
the average charm yield per B decay, N_c and the inclusive branching ratio into
rare modes not containing any charmed hadrons, BR_{rare} can be derived. We
also present a new measurement of the B_d mixing frequency Delta m_d and limits
on the B_s mixing frequency Delta m_s. These analyses take advantage of the
excellent vertexing resolution of the VXD3, a pixel-based CCD vertex detector,
which enables the topological separation of the B and cascade D decay vertices.

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The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: eess
0
The categories of this paper are: hep-ph