Speaker
Description
We discuss the impact of neutral current parity-violating deep-inelastic scattering of electrons from proton and deuterium targets, planned in future measurements at Jefferson Lab, on the determination of the weak mixing angle, $\sin^2\theta_W$, and PDFs at large parton momentum fractions $x$. Using the JAM global QCD analysis framework, we perform a new analysis incorporating data simulated at 11 and 22~GeV Jefferson Lab kinematics, accounting for radiative corrections in a factorized QED+QCD approach and uncertainties from higher twists in $\gamma Z$ exchange. We find that including future $A_{\rm PV}$ data could yield important constraints on the value of $\sin^2\theta_W$ at low $Q^2$ and the high-$x$ behavior of the strange quark PDF and the $d/u$ PDF ratio. Furthermore, the weak correlation between $\sin^2\theta_W$ and the $x$ dependence of the PDFs indicates that $A_{\rm PV}$ data can provide a robust determination of the weak mixing angle in a global QCD analysis.
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