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QED corrections to the Altarelli-Parisi splitting functions

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arxiv 1512.00612 v3 pith:M5XF43YK submitted 2015-12-02 hep-ph

classification hep-ph
keywords splittingalphaaltarelli-parisicombinedcorrectionsfunctionspartonallow
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We discuss the combined effect of QED and QCD corrections to the evolution of parton distributions. We extend the available knowledge of the Altarelli-Parisi splitting functions to one order higher in QED, and provide explicit expressions for the splitting kernels up to ${\cal O}(\alpha \, \alpha_{\mathrm{S}})$. The results presented in this article allow to perform a parton distribution function analysis reaching full NLO QCD-QED combined precision.

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Forward citations

Cited by 4 Pith papers

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    Computes three-loop renormalization constants and pure-singlet axial-vector form factor contributions for SU(N)×U(1) using form factors and IR divergence universality.

  2. New Energy-Loss Constraints on Dark Sectors from Deeply Inelastic Scattering with Initial State Radiation

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    A factorization-based method is outlined to derive energy-loss constraints on dark sector particles (spin 0 to 2) from ISR-modified lepton distributions in DIS, illustrated for MeV-GeV spin-0 cases at the EIC.

  3. Mixed QCD-EW corrections to the neutral-current Drell-Yan process

    hep-ph 2024-12 accept novelty 5.0 of 10

    Exact mixed QCD-EW corrections at order alpha_s alpha to neutral-current Drell-Yan production are computed and applied to distributions, the forward-backward asymmetry, and dressed leptons.

  4. Higher-order and mixed QCD-QED corrections for Drell-Yan

    hep-ph 2019-08 unverdicted novelty 3.0 of 10

    The paper reviews and summarizes the extension of qT-resummation to mixed QCD-QED corrections for Drell-Yan, reporting percent-level effects for Z production at the LHC.

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