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arXiv · 1911.06954

Longitudinal structure function from the parton parameterization

B. Rezaei·G. R. Boroun
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Abstract

We present a set of formulas to extract the longitudinal structure function from the proton structure function and its derivatives with respect to lnQ2 in the next-to-next-to-leading order of the perturbative theory at low x based on a hard poemron exchange. The behavior of the DIS cross section ratio R(x;Q2) and the ratio FL(x;Q2)=F2(x;Q2) studied and compared with the experimental data, also these behaviors controlled by the color dipole model bound. These results show a good agreement with the DIS experimental data throughout the low values of x. These results within the next-to-next-to-leading order approximation at very low x can be applied in the LHeC region for analyses of ultra-high energy processes.

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B. Rezaei, G. R. Boroun. 2019-11-16. Longitudinal structure function from the parton parameterization. https://doi.org/10.1140/epja%2Fs10050-020-00267-w

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