An analysis of the longitudinal structure function at next-to-leading order approximation at small-$x$
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866913774092419072 |
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| author | Boroun, G. R. Cai, Yanbing |
| author_facet | Boroun, G. R. Cai, Yanbing |
| contents | The longitudinal structure function is considered at the next-to-leading order approximation using the expansion method, as defined by M.B.Gay Ducati and P.B.Goncalves [Phys.Lett.B {\bf390}, 401 (1997)] and further developed by Jingxuan Chen et al., [Chin.Phys.C {\bf48}, 063104 (2024)]. This method provides results for a wide range of $x$ and $Q^2$ values. It is observed that the behavior of the longitudinal structure function depends on the fractional momentum carried by gluons at low $x$. The extracted longitudinal structure functions $F_{L}(x,Q^2)$ are in line with data from the H1 Collaboration [V. Andreev et al. (H1 Collaboration), Eur. Phys. J. C 74, 2814 (2014)] and the CT18 parametrization method [T.-J. Hou et al., Phys. Rev. D 103, 014013 (2021)]. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_08115 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | An analysis of the longitudinal structure function at next-to-leading order approximation at small-$x$ Boroun, G. R. Cai, Yanbing High Energy Physics - Phenomenology The longitudinal structure function is considered at the next-to-leading order approximation using the expansion method, as defined by M.B.Gay Ducati and P.B.Goncalves [Phys.Lett.B {\bf390}, 401 (1997)] and further developed by Jingxuan Chen et al., [Chin.Phys.C {\bf48}, 063104 (2024)]. This method provides results for a wide range of $x$ and $Q^2$ values. It is observed that the behavior of the longitudinal structure function depends on the fractional momentum carried by gluons at low $x$. The extracted longitudinal structure functions $F_{L}(x,Q^2)$ are in line with data from the H1 Collaboration [V. Andreev et al. (H1 Collaboration), Eur. Phys. J. C 74, 2814 (2014)] and the CT18 parametrization method [T.-J. Hou et al., Phys. Rev. D 103, 014013 (2021)]. |
| title | An analysis of the longitudinal structure function at next-to-leading order approximation at small-$x$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.08115 |