Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process

LIU ChunXiu; HE ZhenMin; DUAN ChunGui; PENG HongAn

Chinese Physics C> 2000, Vol. 24> Issue(2) : 131-139

Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process

Department of Physics, Shandong University, Ji’nan 250100, China2 Department of Physics, Hebei Teacher′s University, Shijiazhuang 050016, China3 Department of Physics, Peking University, Beijing 100871, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on the next leading order (NLO) perturbative QCD calculation and adopted parton distribution functions from double Q² rescaling model (DQ²RM) in nuclei, we have discussed the variation of K-factors in p N(A) Drell-Yan process. Our results show that K-factors could not be treated as constants as usual, but are varied markedly with the kinimatic variable x_T(A). In the ISR and SppS energy regions, when 2×10^－3≤ x_T(A)<1, K-factors decrease markedly as x_T(A) becomes smaller, but after x_T(A)<2×10^－3, Their values increase rapidly as x_T(A) further decrease. K-factor has a little dependence on nucleon number A of a nuclei also, and their effects are more clear in small x_T(A) region. These observations are important for stringent test of some models and some physical quanties with Drell-Yan (Drell-Yan like) process in super high energy regions.

References

[1]

. Altarelli G .Phys.Rep .,1982 ,81:12. Kabar-Andre J et al.Nucl.Phys.,1980 ,B175:251 3. Khalafi F Z .Phys.,1984 ,C18:57 4. Dress M et al.Z .Phys.,1992 ,C53:673 5. van Neerven W L Int.J.Mod .Phys.,1995,A10:2921;Hambergy R et al.Nucl.Phys.,1991,B359:343;van Neerven W L et al.Nucl.Phys.,1992 ,B382:116. Arneodo M et al.Proc .of Workshop on Future Physics at HEAR ed .by Ingelman G .1995,817 7. Arneodo M Phys.Rep .,1994 ,240:3108. ZHU Wei et al.Phys.Rev .,1991,D4 4 :2 762 9. Gluck M et al.Z .Phys .,1995,C6 7:4 33 10. HE ZhenMin et al.Eur.Phys.J.,1998,C4 :30 1;YAO XiaoXia et al.High Energy Phys.and Nucl.Phys.(in Chinese) ,1997, 21:548(姚晓霞等.高能物理与核物理,1997,21::548) 11. LI G L et al.Nucl.Phys.,1990,A509:757

[1]	FENG Xiu-Mei , ZHANG Ben-Wei . Drell-Yan dilepton production in relativistic heavy-ion collisions at RHIC. Chinese Physics C, 2011, 35(9): 829-832. doi: 10.1088/1674-1137/35/9/008
[2]	DUAN Chun-Gui , LIU Na . Influence of quark energy loss on extracting nuclear sea quark distribution from nuclear Drell-Yan experimental data. Chinese Physics C, 2009, 33(6): 411-414. doi: 10.1088/1674-1137/33/6/002
[3]	WANG Hong-Min , SUN Xian-Jing , HOU Zhao-Yu . Initial-State Nuclear Effects in High Energy p-A Drell-Yan Process. Chinese Physics C, 2007, 31(11): 1040-1044.
[4]	DUAN Chun-Gui , WANG Shuo-He , SHEN Peng-Nian , LI Guang-Lie . Suppression of Nuclear Drell-Yan Ratios Due to Energy Loss Effect. Chinese Physics C, 2006, 30(8): 714-717.
[5]	WANG Hong-Min , SUN Xian-Jing , HOU Zhao-Yu . Next-to-Leading Order QCD Corrections to Energy Loss Effect in Drell-Yan Process. Chinese Physics C, 2006, 30(7): 628-632.
[6]	LI Xi-Ming , ZHAO Ning-Hua , LAN Jian-Sheng . Asymmetry of hadron production in pp(p) reaction. Chinese Physics C, 2005, 29(12): 1125-1130.
[7]	QIAO Xiu-Mei , DUAN Chun-Gui , LI Guang-Lie . Nuclear Effect in p-A Drell-Yan Process. Chinese Physics C, 2002, 26(10): 1036-1040.
[8]	HOU Zhao-Yu , ZHENG Qiao , ZHANG Ben-Ai . A Study on K-Factor′s Constant for Drell-Yan Process in High Energy Nucleus-Nucleus Collision. Chinese Physics C, 2002, 26(4): 364-370.
[9]	WANG Xiu-Lian , DUAN Chun-Gui , WANG Hong-Min , HE Ming-Zhong . Color-Octet Contributions in High Energy π-p Collision Process. Chinese Physics C, 2001, 25(7): 621-627.
[10]	ZHU YaBo , YANG JianJun , LI GuangLie . Energy Loss In Nuclear Drell-Yan Process. Chinese Physics C, 2000, 24(6): 518-523.
[11]	ZHANG YuMin , DUAN ChunGui , YAN ZhanYuan , HE ZhenMin . Nuclear Effect in p-A Drell-Yan Process with QCD Corrections. Chinese Physics C, 2000, 24(9): 839-844.
[12]	Zhu Yabo , Li Guanglie . A Simple Model Describing EMC Effect,Nuclear Drell-Yan Process and Inelastic J/ψ Production. Chinese Physics C, 1997, 21(9): 806-811.
[13]	Peng Hongan , Qin Kecheng , He Zhenmin . Double Pomeron Exchange and J/ψ,γ Production Processes in High Energy p＋p(p)Collisions. Chinese Physics C, 1995, 19(1): 34-41.
[14]	Yu Mingjian , Shen Jianping , Li Guanglie , Yang Jianjun , Shen Hongqing . Improved Partou Evolution Model and Its Explanation to the EMC Effect and the Nuclear Drell-Yan Process. Chinese Physics C, 1994, 18(12): 1107-1114.
[15]	LI Shi-Dong , KUANG Hui-Shun , ZHANG Shu-Fa , XING Jing-Ru , ZHUO Yi-Zhong , WU Xi-Zhen , FENG Ren-Fa . EFFECT OF NUCLEAR VISCOSITY ON FISSION PROCESS. Chinese Physics C, 1989, 13(2): 164-172.
[16]	CHEN Ying-Yang , HE Zhen-Min , HOU Yun-Zhi . EFFECT OF NUCLEAR EFFECT ON THE NUCLEON STRUCTURE FUNCTIONS UPON HIGH P_T DIRECT PHOTON PRODUCTIONS IN p-Al COLISIONS. Chinese Physics C, 1989, 13(9): 796-802.
[17]	WANG Zi-Xing , SONG Hong-Qiu , CAI Yan-Huang , HUANG Wei-Zhi . THE VALIDITY OF M-3Y FORCE EQUIVALENT G-MATRIX ELEMENTS FOR CALCULATIONS OF THE NUCLEAR STRUCTURE IN f-p SHELL. Chinese Physics C, 1986, 10(6): 738-743.
[18]	PENG Tie-Liang , LI Zi-Bang , PENG Hong-An . THE INFLUENCE OF EMC EFFECT ON LEPTON PAIR PRODUCTION OF HIGH ENERGY HADRON-NUCLEI COLLISION. Chinese Physics C, 1986, 10(4): 438-445.
[19]	WANG YING-CAI . INFLUENCE OF THE △-ISOBAR EXCITATION ON (γ,p) REACTION AT MEDIUM ENERGIES. Chinese Physics C, 1982, 6(6): 711-720.
[20]	ZHAO EN-GUANG , LIU BO , LI QING-RUN . THE ISOBAR CONFIGURATION IN NUCLEI AND ITS INFLUENCE ON THE REACTION （p,π⁺）. Chinese Physics C, 1979, 3(6): 708-715.

Access

Get Citation

LIU ChunXiu, HE ZhenMin, DUAN ChunGui and PENG HongAn. Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process[J]. Chinese Physics C, 2000, 24(2): 131-139.

LIU ChunXiu, HE ZhenMin, DUAN ChunGui and PENG HongAn. Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process[J]. Chinese Physics C, 2000, 24(2): 131-139. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1998-12-02
Revised: 1900-01-01

Article Metric

Article Views(1776)
PDF Downloads(609)
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

Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process

Corresponding author: LIU ChunXiu,

Department of Physics, Shandong University, Ji’nan 250100, China2 Department of Physics, Hebei Teacher′s University, Shijiazhuang 050016, China3 Department of Physics, Peking University, Beijing 100871, China

Received Date: 1998-12-02

Accepted Date: 1900-01-01

Available Online: 2000-02-05

Abstract: Based on the next leading order (NLO) perturbative QCD calculation and adopted parton distribution functions from double Q² rescaling model (DQ²RM) in nuclei, we have discussed the variation of K-factors in p N(A) Drell-Yan process. Our results show that K-factors could not be treated as constants as usual, but are varied markedly with the kinimatic variable x_T(A). In the ISR and SppS energy regions, when 2×10^－3≤ x_T(A)<1, K-factors decrease markedly as x_T(A) becomes smaller, but after x_T(A)<2×10^－3, Their values increase rapidly as x_T(A) further decrease. K-factor has a little dependence on nucleon number A of a nuclei also, and their effects are more clear in small x_T(A) region. These observations are important for stringent test of some models and some physical quanties with Drell-Yan (Drell-Yan like) process in super high energy regions.

HTML

Reference (1)

Non-constancy and the Effect of Nuclear Environment of K-Factors in p-N(A) Drell-Yan Process

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article