Comparing AdS/CFT dipole model to HERA F<SUB>2</SUB> data

LU Zhun

doi:10.1088/1674-1137/34/9/060

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1421-1424 DOI: 10.1088/1674-1137/34/9/060

Comparing AdS/CFT dipole model to HERA F₂ data

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

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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.

References

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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
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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2010-03-04

Accepted Date: 1900-01-01

Available Online: 2010-09-05

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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