Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The mass structure of SU(3) baryon antidecuplet and pion muon mass
  difference   We show that the mass intervals among the pentaquark baryons $\Theta^{+}$,
$N^{*}(1685)$ and $\Xi_{3/2}^{-}$ proposed to be the members of the SU(3)
antidecuplet are exact integral multiples of the mass difference between a
neutral pion and a muon i.e. 29.318 MeV, in agreement with the general tendency
of the mass differences among elementary particles to be close integral/half
integral multiple of this mass unit. Further our study reveals that the
strength of the SU(3) breaking understood to give members of the same multiplet
different masses takes values, discrete as integral multiple of the mass
difference between a neutral pion and a muon, the first two massive elementary
particles.

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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org
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The categories of this paper are: comp-gas