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

Abstract
HTML
Reference
Related

PDF

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(x ₂) RAs(x ₂) 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 x ₂region, while a strong influence on the valence quark's. However in the large x ₂region, the non-perturbative or energy loss effects obviously affect the nuclear medium effect on the sea quark distribution.

References

[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)

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(5473)
PDF Downloads(556)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
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 x₂region, while a strong influence on the valence quark's. However in the large x₂region, the non-perturbative or energy loss effects obviously affect the nuclear medium effect on the sea quark distribution.