Single inclusive high-PT hadron and jet production in lepton-hadron scattering is factorized using a joint QCD+QED approach with universal lepton distribution functions, and predictions are given for JLab and EIC energies.
Impact of parity-violating deep-inelastic scattering on the weak mixing angle and high-$x$ parton distributions
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abstract
We discuss the impact of neutral current parity-violating deep-inelastic scattering (PVDIS) of electrons from protons and deuterons on the determination of the weak mixing angle, $\sin^{2}{\theta_{\rm W}}$, and parton distribution functions (PDFs) at large parton momentum fractions $x$. Using the JAM global QCD analysis framework, we study the effect of incorporating pseudodata simulated for 11 GeV and 22 GeV Jefferson Lab kinematics, accounting for radiative corrections in a factorized QED+QCD approach and uncertainties from higher twist corrections in $\gamma Z$ exchange. We find that including future PVDIS pseudodata could yield important constraints on the value of $\sin^{2}{\theta_{\rm W}}$ at low $Q^2$ and on the high-$x$ behavior of the strange quark and $d/u$ PDF ratio. The strong correlation between $\sin^{2}{\theta_{\rm W}}$ and the $x$ dependence of the PDFs demonstrates the necessity for simultaneous analysis of QCD and electroweak quantities to ensure an unbiased determination of the weak mixing angle from PVDIS data.
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hep-ph 2years
2026 2verdicts
CONDITIONAL 2representative citing papers
Collision-induced QED radiation produces O(1) corrections to DIS cross sections but only few-percent shifts in longitudinal electron spin asymmetries, making asymmetries more robust for SMEFT constraints at SoLID and EIC.
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Single inclusive hadron and jet production in lepton-hadron scattering
Single inclusive high-PT hadron and jet production in lepton-hadron scattering is factorized using a joint QCD+QED approach with universal lepton distribution functions, and predictions are given for JLab and EIC energies.
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Impact of QED Radiation on SMEFT Constraints in Deep Inelastic Scattering
Collision-induced QED radiation produces O(1) corrections to DIS cross sections but only few-percent shifts in longitudinal electron spin asymmetries, making asymmetries more robust for SMEFT constraints at SoLID and EIC.