Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of $NN$-correlations on predictions of nuclear transparencies for
  protons, knocked-out in high $Q^2\,(e,e'p)$ reactions   We study the transparency $\cal T$ of nuclei for nucleons knocked-out in
high-energy semi-inclusive $(e,e'p)$ reactions, using an improved theoretical
input, discussed by Nikolaev et al. We establish that neglect of
$NN$-correlations between the knocked-out and core nucleons reduces nuclear
transparencies by $\approx 15 \%$ for light, to $\approx 10\%$ for heavy
nuclei. About the same is predicted for transparencies, integrated over the
transverse or longitudinal momentum of the outgoing proton. Hadron dynamics
predicts a roughly constant $\cal T$ beyond $Q^2\approx $2 GeV$^2$, whereas for
all targets the largest measured data point $Q^2$=6.7 GeV$^2$ appears to lie
above that plateau. Large error bars on those data-points preclude a conclusion
regarding the onset of colour transparency.

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The categories of this paper are: astro-ph
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
20
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: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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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: math-ph
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The categories of this paper are: physics