Next-to-the-Leading-Order Hadronic Corrections for Standard Model and Beyond

Details Next-to-the-Leading-Order Hadronic Corrections for Standard Model and Beyond Next-to-the-Leading-Order Hadronic Corrections for Standard Model and Beyond

2008-10-21

arxiv.org/abs/0810.3688v1

Physics

Nuclear Physics

Nuclear Theory

International Conference on High Energy Physics, Philadelphia, 2008 (ICHEP08)

Scientific paper

We explore various extensions of computational packages such as Feynarts and FormCalc in application to calculation of the electron-proton scattering asymmetries relevant to the G0 and QWeak experiments. Our calculations where completed up to the Next-to-the-Leading-Order (one-loop) using the dipole form factor in hadronic vertices. We saw no significant difference between monopole and dipole type of asymmetry over the range of Q^2 = 0.1 - 1.0 GeV^2. Our results are in the good agreement with theoretical predictions by the G0 collaboration, but show discrepancy from the experiment. This discrepancy from the experimental results is due to the strange content of the proton and possibly new physics as well.

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