Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realistic three-generation models from SO(32) heterotic string theory   We search for realistic supersymmetric standard-like models from SO(32)
heterotic string theory on factorizable tori with multiple magnetic fluxes.
Three chiral ganerations of quarks and leptons are derived from the adjoint and
vector representations of SO(12) gauge groups embedded in SO(32) adjoint
representation. Massless spectra of our models also include Higgs fields, which
have desired Yukawa couplings to quarks and leptons at the tree-level.

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The categories of this paper are: mtrl-th
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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: ao-sci
1
The categories of this paper are: cs
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The categories of this paper are: bayes-an
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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: stat
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The categories of this paper are: quant-ph
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an