Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions

ZHENG Qiao; HOU Zhao-Yu; GAO Yong-Hua; ZHANG Ben-Ai

Chinese Physics C> 2004, Vol. 28> Issue(7) : 711-716

Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions

Department of Mathematics and Physics,Shijiazhuang Railway College,Shijiazhuang 050043,China2 Institute of Physics, Shijiazhuang Normal College,Shijiazhuang 050801,China3 Graduate School,Chinese Academy of Engineering Physics,Beijing 100088,China

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Abstract：
For investigating physical mechanism of the quark distributions due to the nuclear environment under the non-constant K condition the nuclear medium effect on the distribution functions of the sea and valence quarks R Av(x₂) RAs(x₂) is computed by considering QCD non-perturbation effect in the DIS process and energy loss effect in the nuclear Drell-Yan process. Calculated results show that non-perturbative terms or energy loss effect terms have a tiny influence on the nuclear medium effect on the sea quark distribution in the small x₂ region, while a strong influence on the valence quark's. However in the large x₂ region, the non-perturbative or energy loss effects obviously affect the nuclear medium effect on the sea quark distribution.

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ZHENG Qiao, HOU Zhao-Yu, GAO Yong-Hua and ZHANG Ben-Ai. Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions[J]. Chinese Physics C, 2004, 28(7): 711-716.

ZHENG Qiao, HOU Zhao-Yu, GAO Yong-Hua and ZHANG Ben-Ai. Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions[J]. Chinese Physics C, 2004, 28(7): 711-716. shu

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Received: 2003-12-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions

Corresponding author: ZHENG Qiao,

Department of Mathematics and Physics,Shijiazhuang Railway College,Shijiazhuang 050043,China2 Institute of Physics, Shijiazhuang Normal College,Shijiazhuang 050801,China3 Graduate School,Chinese Academy of Engineering Physics,Beijing 100088,China

Received Date: 2003-12-01

Accepted Date: 1900-01-01

Available Online: 2004-07-05

Abstract: For investigating physical mechanism of the quark distributions due to the nuclear environment under the non-constant K condition the nuclear medium effect on the distribution functions of the sea and valence quarks R Av(x₂) RAs(x₂) is computed by considering QCD non-perturbation effect in the DIS process and energy loss effect in the nuclear Drell-Yan process. Calculated results show that non-perturbative terms or energy loss effect terms have a tiny influence on the nuclear medium effect on the sea quark distribution in the small x₂ region, while a strong influence on the valence quark's. However in the large x₂ region, the non-perturbative or energy loss effects obviously affect the nuclear medium effect on the sea quark distribution.

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Affection of QCD Non-Perturbation and Energy Loss Effect to the Quark Distributions

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