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The Non-perturbative Effect on $R=σ_L /σ_T$ from QCD Vacuum

Jian-Jun Yang·Bo-Qiang Ma·Guang-Lie Li
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Abstract

We investigate the non-perturbative effects on the ratio $R=σ_L /σ_T$ in lepton-nucleon deep inelastic scattering by taking into account the lowest dimensional condensate contributions from the QCD vacuum. By combining conventional perturbative QCD corrections and the Georgi- Politzer target-mass effects with the non-perturbative effects from the QCD vacuum, we give a good description of the $Q^2$ and $x$ dependences of $R$ in comparison with the recent experimental data.

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Jian-Jun Yang, Bo-Qiang Ma, Guang-Lie Li. 1998-02-18. The Non-perturbative Effect on $R=σ_L /σ_T$ from QCD Vacuum. https://doi.org/10.1016/s0370-2693(98)00094-x

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