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arXiv · 1311.3389

Hadronic gamma-Z box corrections in M\oller scattering

N. L. Hall·P. G. Blunden·W. Melnitchouk·A. W. Thomas·R. D. Young
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Abstract

The possibility of measuring the parity-violating asymmetry in M\oller scattering with sufficient accuracy to determine sin^2 theta_W to 0.1% offers a complementary path to the discovery of new physics to that followed at high energy colliders. We present a new calculation of the gamma-Z box contribution to parity-violating electron-proton scattering, which constitutes an important uncertainty in computing the background to this process. We show that while the gamma-Z correction grows rapidly with energy, it can be relatively well constrained by data from parity-violating inelastic scattering and parton distribution functions.

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BibTeXRIS

N. L. Hall, P. G. Blunden, W. Melnitchouk, A. W. Thomas, R. D. Young. 2014-03-13. Hadronic gamma-Z box corrections in M\oller scattering. https://doi.org/10.1016/j.physletb.2014.02.049

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