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arXiv · 2601.01615

Comment on QED Corrections to the Parity Violating Asymmetry in High-Energy Electron-Nucleus Scattering

Brendan T. Reed·C. J. Horowitz
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Abstract

In a recent letter Roca-Maza and Jakubassa-Amundsen claim a large $\approx 5\%$ radiative correction to the parity-violating asymmetry $A_{pv}$ in electron-nucleus scattering. If true, this would be important for the interpretation of the PREX, CREX, and MREX experiments. However, Roca-Maza and Jakubassa-Amundsen do not explicitly include the axial-vector vertex correction to $Z^0$ exchange (at the momentum transfer of the experiment). We show that including this cancels much of the change in $A_{pv}$.

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Brendan T. Reed, C. J. Horowitz. 2026-01-04. Comment on QED Corrections to the Parity Violating Asymmetry in High-Energy Electron-Nucleus Scattering. https://arxiv.org/abs/2601.01615

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