# Partonic calculation of $γZ$ Exchange Corrections to Parity-Violating Elastic Electron-Proton Scattering - Nuclear Theory

Partonic calculation of $γZ$ Exchange Corrections to Parity-Violating Elastic Electron-Proton Scattering - Nuclear Theory - Download this document for free, or read online. Document in PDF available to download.

Abstract: We calculate $\gamma Z$ exchange corrections to the parity-violatingasymmetry of the elastic electron-proton scattering in a parton model using theformalism of generalized parton distributionsGPDs. We also examine thevalidity of the zero-momentum-transfer approximation adopted in the literaturesand find that it overestimates the $\gamma Z$ exchange effect significantly atthe forward scattering angles.

Author: Yu Chun Chen, Chung Wen Kao, Marc Vanderhaeghen

Source: https://arxiv.org/