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2024年10月30日

Comparing AdS/CFT dipole model to HERA F2 data

  • We apply an AdS/CFT-inspired color-dipole model which contains only three free parameters to describe the HERA data for the inclusive structure function F2 at small Bjorken-x and virtuality. We found that the saturation scale in our AdS/CFT-based parameterization varies in the range of 1÷3 GeV becoming independent of energy/Bjorken-x at very small x. This leads to the prediction of x-independence of the structure functions at very small x. With the fitted parameters in our model, the predictions for F2, longitudinal structure function, charm structure function and total photo-production cross-sections in the kinematic regions of future experiments can be given.

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LU Zhun. Comparing AdS/CFT dipole model to HERA F2 data[J]. Chinese Physics C, 2010, 34(9): 1421-1424. doi: 10.1088/1674-1137/34/9/060
LU Zhun. Comparing AdS/CFT dipole model to HERA F2 data[J]. Chinese Physics C, 2010, 34(9): 1421-1424.  doi: 10.1088/1674-1137/34/9/060 shu
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Received: 2010-03-04
Revised: 1900-01-01
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Comparing AdS/CFT dipole model to HERA F2 data

    Corresponding author: LU Zhun,
  • 1 Department of Physics, Southeast University, Nanjing, China2 Departamento de Fi sica y Centro de Estudios Subatomicos, Universidad Tecnica Federico Santa Mari a, Casilla 110-V, Valparai so, Chile

Abstract: 

We apply an AdS/CFT-inspired color-dipole model which contains only three free parameters to describe the HERA data for the inclusive structure function F2 at small Bjorken-x and virtuality. We found that the saturation scale in our AdS/CFT-based parameterization varies in the range of 1÷3 GeV becoming independent of energy/Bjorken-x at very small x. This leads to the prediction of x-independence of the structure functions at very small x. With the fitted parameters in our model, the predictions for F2, longitudinal structure function, charm structure function and total photo-production cross-sections in the kinematic regions of future experiments can be given.

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