Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Weak Mixing Angle from an SU(3) Symmetry at a TeV   The measured values of two electroweak gauge couplings appear to obey an
approximate 5% SU(3) relation. Unless this is an accident caused by fortuitous
Planck-scale physics, it suggests the presence of an SU(3) symmetry near the
electroweak scale. We propose this to be a local SU(3) which spontaneously
``mixes'' with SU(2) x U(1) near a TeV. Although all the particles of the
standard model are SU(3)-singlets, this symmetry relates the electroweak gauge
couplings and can successfully predict the weak mixing angle with a precision
of a few percent. Since this mechanism operates at a TeV, it does not require
an energy desert and consequently can be embedded in theories of TeV-gravity.

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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio