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arXiv · 1108.4734

Next-to leading order analysis of target mass corrections to structure functions and asymmetries

L. T. Brady·A. Accardi·T. J. Hobbs·W. Melnitchouk
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Abstract

We perform a comprehensive analysis of target mass corrections (TMCs) to spin-averaged structure functions and asymmetries at next-to-leading order. Several different prescriptions for TMCs are considered, including the operator product expansion, and various approximations to it, collinear factorization, and xi-scaling. We assess the impact of each of these on a number of observables, such as the neutron to proton F_2 structure function ratio, and parity-violating electron scattering asymmetries for protons and deuterons which are sensitive to gamma-Z interference effects. The corrections from higher order radiative and nuclear effects on the parity-violating deuteron asymmetry are also quantified.

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L. T. Brady, A. Accardi, T. J. Hobbs, W. Melnitchouk. 2011-08-24. Next-to leading order analysis of target mass corrections to structure functions and asymmetries. https://doi.org/10.1103/physrevd.84.074008

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