Charm structure functions and gluon shadowing effects with the AdS/CFT model

By means of the UGD function extracted from an AdS/CFT inspired saturation model, the charm and bottom structure functions are studied in fixed-order perturbation theory. It is shown that the theoretical results are in good agreement with the recent HERA data. Then, this UGD function is also used to...

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Bibliographic Details
Published inChinese physics C Vol. 36; no. 8; pp. 691 - 696
Main Author 王宏民 侯召宇 刘家福 孙献静
Format Journal Article
LanguageEnglish
Published 01.08.2012
Subjects
ADS
CFT
Collisions
Energy (nuclear)
Energy use
Gluons
Mathematical models
Parametrization
Perturbation theory
RHIC能量
Saturation
T模型
结构功能
胶子
阴影效果
饱和度模型
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Summary:By means of the UGD function extracted from an AdS/CFT inspired saturation model, the charm and bottom structure functions are studied in fixed-order perturbation theory. It is shown that the theoretical results are in good agreement with the recent HERA data. Then, this UGD function is also used to investigate net-kaon rapidity distribution in Au＋Au collisions at RHIC energies and the theoretical results fit well to the BRAHMS data. In the end of this paper, we give the predicted results for nuclear charm structure function at very small x where the popular shadowing parameterizations are invalid.
Bibliography:11-5641/O4
AdS/CFT inspired model, unintegrated gluon distribution, shadowing effect
By means of the UGD function extracted from an AdS/CFT inspired saturation model, the charm and bottom structure functions are studied in fixed-order perturbation theory. It is shown that the theoretical results are in good agreement with the recent HERA data. Then, this UGD function is also used to investigate net-kaon rapidity distribution in Au＋Au collisions at RHIC energies and the theoretical results fit well to the BRAHMS data. In the end of this paper, we give the predicted results for nuclear charm structure function at very small x where the popular shadowing parameterizations are invalid.
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/36/8/002