Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evidence for the higher twists effects in diffractive DIS at HERA   We study a twist decomposition of diffractive structure functions in the
diffractive deep inelastic scattering at HERA. At low $Q^2$ and at large energy
the data exhibit a strong deviation from the twist-2 NLO DGLAP description. It
is found that this deviation in consistent with higher twist effects. We
conclude that the DDIS at HERA provides the first, strong evidence of higher
twist effects in DIS.

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The categories of this paper are: alg-geom
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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: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
1
The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con