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arXiv · hep-ph/0110038

Nuclear enhanced power corrections to DIS structure functions

Xiaofeng Guo·Jianwei Qiu·Wei Zhu
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Abstract

We calculate nuclear enhanced power corrections to structure functions measured in deeply inelastic lepton-nucleus scattering in Quantum Chromodynamics (QCD). We find that the nuclear medium enhanced power corrections at order of $O(α_s/Q^2)$ enhance the longitudinal structure function $F_L$, and suppress the transverse structure function $F_1$. We demonstrate that strong nuclear effects in $σ_A/σ_D$ and $R_A/R_D$, recently observed by HERMES Collaboration, can be explained in terms of the nuclear enhanced power corrections.

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Xiaofeng Guo, Jianwei Qiu, Wei Zhu. 2001-10-03. Nuclear enhanced power corrections to DIS structure functions. https://doi.org/10.1016/s0370-2693(01)01338-7

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