Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The possible $\Sigma^0$-$\Lambda$ mixing in QCD sum rules   We calculate the on-shell $\Sigma^0$-$\Lambda$ mixing parameter $\theta$ with
the method of QCD sum rule. Our result is $\theta (m^2_{\Sigma^0}) =(-)(0.5\pm
0.1)$MeV. The electromagnetic interaction is not included.

35
The categories of this paper are: mtrl-th
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The categories of this paper are: eess
5
The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
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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: atom-ph
13
The categories of this paper are: quant-ph