dorsal/arxiv
View SchemaPerturbative Gluon Shadowing in Heavy Nuclei
| Authors | K. J. Eskola, Jianwei Qiu, Xin-Nian Wang |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9307025 |
| URL | https://arxiv.org/abs/nucl-th/9307025 |
| DOI | 10.1103/PhysRevLett.72.36 |
| Journal | Phys.Rev.Lett.72:36-39,1994 |
Abstract
We study how much gluon shadowing can be perturbatively generated through the modified QCD evolution in heavy nuclei. The evolution of small-$x$ gluons is investigated within the semiclassical approximation. The method of characteristics is used to evaluate the shadowed distributions in low-$Q$ and small-$x$ region. In solving the modified evolution equation, we model in simultaneously fusions from independent constituents and from the same constituent, both in a proton and in a large loosely bound nucleus of $A\sim 200$. In addition to the actual distributions at small $x$, we study the ratios of the distributions at an initial scale $Q_0 = 2$ GeV, and show that a strong nuclear shadowing can follow from the modified QCD evolution.
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"abstract": "We study how much gluon shadowing can be perturbatively generated through the\nmodified QCD evolution in heavy nuclei. The evolution of small-$x$ gluons is\ninvestigated within the semiclassical approximation. The method of\ncharacteristics is used to evaluate the shadowed distributions in low-$Q$ and\nsmall-$x$ region. In solving the modified evolution equation, we model in\nsimultaneously fusions from independent constituents and from the same\nconstituent, both in a proton and in a large loosely bound nucleus of $A\\sim\n200$. In addition to the actual distributions at small $x$, we study the ratios\nof the distributions at an initial scale $Q_0 = 2$ GeV, and show that a strong\nnuclear shadowing can follow from the modified QCD evolution.",
"arxiv_id": "nucl-th/9307025",
"authors": [
"K. J. Eskola",
"Jianwei Qiu",
"Xin-Nian Wang"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevLett.72.36",
"journal_ref": "Phys.Rev.Lett.72:36-39,1994",
"title": "Perturbative Gluon Shadowing in Heavy Nuclei",
"url": "https://arxiv.org/abs/nucl-th/9307025"
},
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