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

  • 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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  • [1] . Drell S, YAN T. Phys. Rev.Lett. , 1970, 25: 3162. LI Guang-Lie, YANG Jian-Jun, SHEN Hong-Qing. Progress in Physics,1995, 15: 2023. Arneodo M et al. ( EMC-NA28) . Nucl. Phys. , 1990, B333: 14. Alde D et al ( FNAL E772) . Phys. Rev.Lett. , 1990, 64: 24795. Amaudruz P et al ( CERN NA37-NMC) . Z. Phys. , 1991, C51: 3876. HOU Zhao-Yu et al. Commun. Theor. Phys. , 2002, 38: 577. HOU Zhao-Yu, ZHENG Qiao, ZHANG Ben-Ai. HEP NP, 2002, 26( 4) : 364- 3708. HOU Zhao-Yu, ZHENG Qiao et al. Commun. Theor. Phys. , 2000, 2:3779. Feynman R. Phys. Rev. Lett. , 1969, 23: 141510. Amaudruz P et al. ( CERN NA37-NMC) . Z. Phys. , 1990, C51: 38711. Bjorken J, Paschos E A. Phys. Rev. , 1969, 185: 197512. LI Guang-Lie et al. Phys. Lett. , 1988, B213: 53113. Adams D et al. Phys. Lett . , 1994, B329: 39914. Glück M, Reya E, Vogt A. Z. Phys. Rev. , 1995, C67: 43315. YANG Jian-Jun, MA Bo-Qiang, LI Guang-Lie. Commun. Theor.Phys. , 1997, 28: 22116. YANG Jian-Jun, MA Bo-Qiang, LI Guang-Lie. HEP NP, 1997, 21:471(in Chinese)(杨建军,马伯强,厉光烈.高能物理与核物理,1997,21:471)17. Larsson T. Phys. Rev. Lett. , 1985, D32:95618. SLAC E139 (Arnold R et al) . Phys. Rev. Lett . , 1984, 52: 72719. Kenyon I R. Rep. Prog. Phys. , 1980, 45: 1261; Duke D,Roberts R. Phys. Rep. , 1985, 120: 27520. YANG Jan-Jun, LI Guang-Lie. Eur. Phys. J. , 1998, C5: 71921. DUAN Chun-Gui, WANG Hong-Min, LI Guang-Lie. Chin. Phys.Lett. , 2002, 19:48522. ZHU Ya-Bo, YANG Jian-Jun, LI Guang-Lie. HEP NP, 2000, 24:518(in Chinese)(朱亚波,杨建军,厉光烈.高能物理与核物理,2000,24:518)
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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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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

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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