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 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.
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WANG Hong-Min, HOU Zhao-Yu, LIU Jia-Fu and SUN Xian-Jing. Charm structure functions and gluon shadowing effects with the AdS/CFT model[J]. Chinese Physics C, 2012, 36(8): 691-696. doi: 10.1088/1674-1137/36/8/002
WANG Hong-Min, HOU Zhao-Yu, LIU Jia-Fu and SUN Xian-Jing. Charm structure functions and gluon shadowing effects with the AdS/CFT model[J]. Chinese Physics C, 2012, 36(8): 691-696.  doi: 10.1088/1674-1137/36/8/002 shu
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Received: 2011-11-15
Revised: 1900-01-01
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Charm structure functions and gluon shadowing effects with the AdS/CFT model

    Corresponding author: WANG Hong-Min,

Abstract: 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.

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