Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2407.03708 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912916466302976 |
|---|---|
| author | Boroun, G. R. Kuroda, M. Schildknecht, Dieter |
| author_facet | Boroun, G. R. Kuroda, M. Schildknecht, Dieter |
| contents | The behavior of the gluon distribution of the proton in the low-$x$, low-$Q^2$ domain of deep inelastic electron-proton scattering (DIS) is being investigated. By considering two-gluon exchange as the dominant interaction in the low-$x$, low-$Q^2$ domain, we imply the well-known result of scaling of the photoabsorption cross section in terms of the scaling variable $η(W^2,Q^2)$. From this, we derive a reliable result for the gluon distribution at the leading order of the perturbative QCD improved parton model, based on evolution from a starting scale of $Q_0^2\cong 2$ GeV$^2$. The validity of evolution, when considering its quantitative modification at low-$Q^2$ without any alteration at larger values of $Q^2$, leads to a quantitative improvement in the extraction of the gluon distribution based on evolution from a starting scale of $Q^2$
conventionally chosen as $Q^2= Q_0^2\cong 2$ GeV$^2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_03708 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Photoabsorption cross section in the low-$x$ and low-$Q^2$ domain, and DGLAP evolution Boroun, G. R. Kuroda, M. Schildknecht, Dieter High Energy Physics - Phenomenology The behavior of the gluon distribution of the proton in the low-$x$, low-$Q^2$ domain of deep inelastic electron-proton scattering (DIS) is being investigated. By considering two-gluon exchange as the dominant interaction in the low-$x$, low-$Q^2$ domain, we imply the well-known result of scaling of the photoabsorption cross section in terms of the scaling variable $η(W^2,Q^2)$. From this, we derive a reliable result for the gluon distribution at the leading order of the perturbative QCD improved parton model, based on evolution from a starting scale of $Q_0^2\cong 2$ GeV$^2$. The validity of evolution, when considering its quantitative modification at low-$Q^2$ without any alteration at larger values of $Q^2$, leads to a quantitative improvement in the extraction of the gluon distribution based on evolution from a starting scale of $Q^2$ conventionally chosen as $Q^2= Q_0^2\cong 2$ GeV$^2$. |
| title | Photoabsorption cross section in the low-$x$ and low-$Q^2$ domain, and DGLAP evolution |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2407.03708 |