The improved saturation model in nuclei
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arXiv
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866910707504644096 |
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| author | Boroun, G. R. Rezaei, B. |
| author_facet | Boroun, G. R. Rezaei, B. |
| contents | We consider the nuclear shadowing in deep-inelastic scattering corresponding to kinematic regions accessible by future experiments at electron-ion colliders. The gluon distribution at small $x$ is obtained using an improved dipole model depended on the impact parameter for atomic nucleus and compared with nCETQ15 parametrization group. The nuclear shadowing at small $x$ is defined within the color dipole formalism with respect to the mass number $A$. Its behavior is predicted for light nuclei in a wide range of the impact parameter $b$ and the transverse dipole size $r$. The nuclear saturation at large-$r$ (small $μ^2$) is observable. The behavior of the nuclear ratio $σ^{A}_{\mathrm{dip}}/σ_{0}$ is similar to the Golec-Biernat-W$\ddot{\mathrm{u}}$sthoff (GBW) model in a wide range of $r$ for light and heavy nuclei at small $x$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_07654 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The improved saturation model in nuclei Boroun, G. R. Rezaei, B. Nuclear Theory High Energy Physics - Phenomenology We consider the nuclear shadowing in deep-inelastic scattering corresponding to kinematic regions accessible by future experiments at electron-ion colliders. The gluon distribution at small $x$ is obtained using an improved dipole model depended on the impact parameter for atomic nucleus and compared with nCETQ15 parametrization group. The nuclear shadowing at small $x$ is defined within the color dipole formalism with respect to the mass number $A$. Its behavior is predicted for light nuclei in a wide range of the impact parameter $b$ and the transverse dipole size $r$. The nuclear saturation at large-$r$ (small $μ^2$) is observable. The behavior of the nuclear ratio $σ^{A}_{\mathrm{dip}}/σ_{0}$ is similar to the Golec-Biernat-W$\ddot{\mathrm{u}}$sthoff (GBW) model in a wide range of $r$ for light and heavy nuclei at small $x$. |
| title | The improved saturation model in nuclei |
| topic | Nuclear Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2303.07654 |