Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exotic B_c-like molecules in QCD Sum Rules   We use the QCD sum rules to study possible $B_c$-like molecular states. We
consider isoscalar $J^P = 0^+$ and $J^P = 1^+ D^{(\ast)}B^{(\ast)}$ molecular
currents. We consider the contributions of condensates up to dimension eight
and we work at leading order in ${\alpha}_s$ . We obtain for these states
masses around 7 GeV.

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The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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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: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: solv-int
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat