Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: EtabFDC: an $\eta_b$ event generator in hadroproduction at LHC   The EtabFDC is a matrix-element event generator package for $\eta_b$
hadroproduction at LHC. It generates $pp\to\eta_b X$ events for all possible
parton-level $2\to2$ leading-order processes with three commonly used $\eta_b$
decay channels being implemented. The \pythia interface is used for
parton-shower and hadronization to obtain the hadronic events. The FORTRAN
codes of this package are generated by FDC (Feynman Diagram Calculation) system
automatically.

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The categories of this paper are: mtrl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
6
The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci