Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: SU(3) Breaking in Hyperon Beta Decays: a Prediction for Xi0 -> Sigma+ e
  anti-neutrino   SU(3) breaking in hyperon semi-leptonic decays is discussed. The SU(3)
parameters $F$ and $D$, relevant to the ``proton-spin puzzle'', are extracted
and a prediction is presented for the decay Xi0 -> Sigma+ e anti-neutrino,
currently under study by the KTeV collaboration. The values found are g1/f1 =
1.16+/-0.03+/-0.01 and Gamma = (0.80+/-0.03+/-0.01) x 10^6 s^-1.

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The categories of this paper are: econ
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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: cond-mat
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The categories of this paper are: supr-con
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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: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga