Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Masses of the Light Quarks   Talk given at the Conference on Fundamental Interactions of Elementary
Particles, ITEP, Moscow, Oct. 1995. The paper reviews the current status of
knowledge concerning m_u, m_d and m_s. Qualitative aspects of the resulting
picture for the breaking of isospin and eightfold way symmetries are discussed.
At a more quantitative level, the review focuses on the chiral perturbation
theory results for the masses of the Goldstone bosons. The corresponding bounds
and estimates for the ratios m_u/m_d and m_s/m_d are described in some detail.

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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: comp-gas
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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: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc