Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: EW corrections to $t \bar t$ distributions: the photon PDF effect   In this proceeding we present the impact of the EW corrections on $t \bar t$
distributions focusing on the effect of the photon PDF. We use the {\sc
NNPDF2.3QED} and {\sc CT14QED} PDF sets, which include the photon PDF. We
discuss a detailed comparison between the results obtained from these two PDF
sets at NLO QCD+EW accuracy for 13 TeV, focusing on the top-quark $p_T$ and the
top-quark pair rapidity. We point out the differences between these two PDF
sets and we show that the rapidity of the top-quark pair can be used in order
to constrain the photon PDF predicted by the {\sc NNPDF2.3QED} set.

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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio