Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Top-Yukawa effects on the $\beta$-function of the strong coupling in the
  SM at four-loop level   We present analytical results for the QCD $\beta$-function extended to the
gaugeless limit of the unbroken phase of the Standard Model at four-loop level.
Apart from the strong coupling itself we include the top-Yukawa contribution
and the Higgs self-coupling. We observe a non-naive $\gamma_5$ contribution at
order $y_t^4 g_s^4$, a feature not encountered in lower loop orders.

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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: quant-ph
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The categories of this paper are: math
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org