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The partonic structure of the electron at the next-to-leading logarithmic accuracy in QED

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arxiv 1911.12040 v3 pith:2MEIUCB4 submitted 2019-11-27 hep-ph

The partonic structure of the electron at the next-to-leading logarithmic accuracy in QED

classification hep-ph
keywords electronaccuracyalphaanalyticalincludeslogarithmicnext-to-leadingpdfs
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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By working in QED, we obtain the electron, positron, and photon Parton Distribution Functions (PDFs) of the unpolarised electron at the next-to-leading logarithmic accuracy. The PDFs account for all of the universal effects of initial-state collinear origin, and are key ingredients in the calculations of cross sections in the so-called structure-function approach. We present both numerical and analytical results, and show that they agree extremely well with each other. The analytical predictions are defined by means of an additive formula that matches a large-$z$ solution that includes all orders in the QED coupling constant $\alpha$, with a small- and intermediate-$z$ solution that includes terms up to ${\cal O}(\alpha^3)$.

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Cited by 4 Pith papers

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