Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical spin effects within the pseudo scalar nonet within holographic
  QCD   We investigate the importance of dynamical spin effects in the holographic
light-front wavefunctions of the pseudoscalar mesons. We find that these
effects are crucial to describe the pion data while they are not necessary to
describe the available kaon data. For $\eta-\eta^\prime$ system, we find that
dynamical spin effects are required to describe their transition form factors
data.

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The categories of this paper are: astro-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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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: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex