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

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

2011-08-24

arxiv.org/abs/1108.4734v2

Phys. Rev. D 84, 074008 (2011)

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 15 figures; Fig. 8 corrected (previous version showed 2xR instead of R)

Scientific paper

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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