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arXiv · 0903.1098

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

Yu Chun Chen·Chung Wen Kao·Marc Vanderhaeghen
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Abstract

We calculate $γZ$ exchange corrections to the parity-violating asymmetry of the elastic electron-proton scattering in a parton model using the formalism of generalized parton distributions(GPDs). We also examine the validity of the zero-momentum-transfer approximation adopted in the literatures and find that it overestimates the $γZ$ exchange effect significantly at the forward scattering angles.

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Yu Chun Chen, Chung Wen Kao, Marc Vanderhaeghen. 2009-03-06. Partonic calculation of $γZ$ Exchange Corrections to Parity-Violating Elastic Electron-Proton Scattering. https://arxiv.org/abs/0903.1098

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