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Comment on "Single-inclusive jet production in electron-nucleon collisions through next-to-next-to-leading order in perturbative QCD" [Phys. Lett. B 763, 52--59 (2016)]

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arxiv 1701.08214 v3 pith:IG5PSD7H submitted 2017-01-27 hep-ph

classification hep-ph
keywords distributionelectronperturbativequarkapproximationcollisionscontributionscross
verification ladder T0 review T1 audit T2 compute T3 formal
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In the cross section for single-inclusive jet production in electron-nucleon collisions, the distribution of a quark in an electron appears at next-to-next-to-leading order. The numerical calculations in Ref. [1] were carried out using a perturbative approximation for the distribution of a quark in an electron. We point out that that distribution receives nonperturbative QCD contributions that invalidate the perturbative approximation. Those nonperturbative effects enter into cross sections for hard-scattering processes through resolved-electron contributions and can be taken into account by determining the distribution of a quark in an electron phenomenologically.

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  1. Factorized QED and QCD Contribution to Deeply Inelastic Scattering

    hep-ph 2025-05 conditional novelty 7.0 of 10

    The NLO factorized QED contribution to the leading e+q->e+X subprocess of DIS is computed and shown to be infrared safe with no free parameters beyond the factorization scale.

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