Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: E_6 unification model building II. Clebsch-Gordan coefficients of
  78$\otimes$78   We have computed the Clebsch-Gordan coefficients for the product (000001)
$\otimes$ (000001), where (000001) is the adjoint 78-dimensional representation
of $E_6$. The results are presented for the dominant weights of the irreducible
representations in this product. As a simple application we express the singlet
operator in $ 27 \otimes 78 \otimes \bar{27}$ in terms of multiplets of the
Standard Model gauge group.

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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph