Q2 and x-Rescaling Meehanisms and the Nuclear Momentum Conservation in the EMC Effect

Li Guanglie; K F. Liu

Chinese Physics C> 1989, Vol. 13> Issue(S3) : 263-272

Q² and x-Rescaling Meehanisms and the Nuclear Momentum Conservation in the EMC Effect

Li Guanglie ¹ ,
K F. Liu ²

1. Center of Theoretical Physics, CCAST(World Laboratory), Beijing;Institute of High Energy Physics, Chinese Academy of Sciences, Beijing;
2. Department of Physics and Astronomy, University of Kentucky, U. S. A.

Abstract
HTML
Reference
Related

PDF

Abstract：
Based upon the consideration of the Fermi motion correction and the nuclear binding effect, the EMC effect can be explained by introducing the Q²- and x-rescaling mechanisms. The experimental data, especially in the region 0.2 < x < 0.5, can be better reproduced by using the x-rescaling mechanism than using the Q²-rescaling mechanism. The problem of the nuclear momentum conservation in the EMC effect is further discussed. In order to make up the 4% nuclear momentum loss, the different Q²- or x-rescaling parameters for the momentum distributions of the valence and sea quarks in the nucleon structure function are chosen. The result shows that, by employing the extended x-rescaling mechanism, a better agreement between the theoretical result and the experimental data in the small x region can be obtained.

[1]	V. Dehghani , S. A. Alavi . Empirical formulas for proton decay half-lives: Role of nuclear deformation and Q-value. Chinese Physics C, 2018, 42(10): 104101. doi: 10.1088/1674-1137/42/10/104101
[2]	Pei-Wei Wen , Zhao-Qing Feng , Fan Zhang , Cheng Li , Cheng-Jian Lin , Feng-Shou Zhang . Effect of positive Q-value neutron transfers on sub-barrier fusion reactions. Chinese Physics C, 2017, 41(6): 064102. doi: 10.1088/1674-1137/41/6/064102
[3]	FAN Guang-Wei , CAI Xiao-Lu , HAN Ti-Fei , LI Xue-Chao , REN Zhong-Zhou , XU Wang . Effect of nuclear deformation on direct capture reactions. Chinese Physics C, 2014, 38(4): 044101. doi: 10.1088/1674-1137/38/4/044101
[4]	JIANG Jun-Qin . kth-order antibunching effect for a new kind of excited even and odd q-coherent states. Chinese Physics C, 2010, 34(3): 325-329. doi: 10.1088/1674-1137/34/3/004
[5]	YE Wei , WU Feng . Influence of angular momentum on evaporation residue cross section as a probe of nuclear dissipation. Chinese Physics C, 2008, 32(6): 433-436. doi: 10.1088/1674-1137/32/6/004
[6]	R.H.Scott¹ , V.N.Asseev¹ , T.V.Kulevoy² , P.N.Ostroumov¹ , E.A.Poklonskaya³ , M.Sengupta¹ , N.E.Vinogradov⁴ . Status of the 2Q-LEBT Facility at ANL. Chinese Physics C, 2007, 31(S1): 111-114.
[7]	Ma Weixing , Li Xiguo , Lu Dinghui . Q²-Dependence of the Gerasimov-Drell-Hearn Sum Rule. Chinese Physics C, 1999, 23(9): 880-889.
[8]	Duan Chungui , He Zhenmin , Lin Zhongjin , Li Guanglie . Nuclear Gluon Distributiom in the Extended x-Rescaling Model. Chinese Physics C, 1997, 21(5): 433-437.
[9]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[10]	Zhu Yabo , Li Guanglie . A Simple Model Describing the EMC Effect, Nuclear Dr ell-Yan Process, and Inelastic J/ψ Production. Chinese Physics C, 1997, 21(S3): 79-84.
[11]	Yao Xiaoxia , He Zhenmin , Duan Chungui , Li Guanglie , Peng Hongan . Improved Q²-Rescaling Model and the Nuclear Effect of Parton Distribution Functions. Chinese Physics C, 1997, 21(6): 548-553.
[12]	Pan Feng , Dai Lianrong . Magnetic Moments of Odd a Nuclei in q-Deformed Nuclear Shell Model. Chinese Physics C, 1996, 20(S2): 197-204.
[13]	Yu Zhaoxian , Liu Yehou , Li Qinglin , Liang Bifang . Study of SU(2)_q,s Coherent State by Using (q,s) Deformed Harmonic Oscillators of SU(2)_q,s Quantum Algebra. Chinese Physics C, 1995, 19(3): 258-263.
[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]	Yang Jianjun , Zhu Yabo , Shen Hongqing , Shen Jianping , Li Guanglie . Parton Evolution Model and the EMC Effect. Chinese Physics C, 1991, 15(S2): 197-205.
[16]	MA Bo-Qiang , SUN Ji . THE EMC EFFECT AND THE LIGHT-CONE QUANTUM FIELD THEORY. Chinese Physics C, 1990, 14(8): 684-691.
[17]	ZHU Wei , HE Han-Xin . THE EMC EFFECT OF ROTATIONAL NUCLEI. Chinese Physics C, 1990, 14(8): 762-765.
[18]	HOU Yun-Zhi , WANG Yi-Li . THE RELATIVISTIC NUCLEAR MODEL AND EMC EFFECT. Chinese Physics C, 1989, 13(1): 35-41.
[19]	Li Zibang , Peng Hongan . Statistical Model for Partons in Nucleon, EMC Effect and Gluon Distribution Functions of Nucleon Inside Nuclei. Chinese Physics C, 1988, 12(S2): 165-174.
[20]	HUANG CHAO-SHANG . THE LARGE MOMENTUM BEHAVIOR OF THE ELECTROMAGNETIC TRANSITION FORM FACTOR F_A₁π(q²) IN QCD. Chinese Physics C, 1982, 6(2): 168-175.

Access

Get Citation

Li Guanglie and K F. Liu. Q² and x-Rescaling Meehanisms and the Nuclear Momentum Conservation in the EMC Effect[J]. Chinese Physics C, 1989, 13(S3): 263-272.

Li Guanglie and K F. Liu. Q² and x-Rescaling Meehanisms and the Nuclear Momentum Conservation in the EMC Effect[J]. Chinese Physics C, 1989, 13(S3): 263-272. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1988-06-16

Fund

Supported by the National Natural Science Foundation of China.

Article Metric

Article Views(564)
PDF Downloads(6)
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

Q² and x-Rescaling Meehanisms and the Nuclear Momentum Conservation in the EMC Effect

Li Guanglie ^1,
K F. Liu ^2,

1. Center of Theoretical Physics, CCAST(World Laboratory), Beijing;Institute of High Energy Physics, Chinese Academy of Sciences, Beijing;
2. Department of Physics and Astronomy, University of Kentucky, U. S. A.

Received Date: 1988-06-16

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: Based upon the consideration of the Fermi motion correction and the nuclear binding effect, the EMC effect can be explained by introducing the Q²- and x-rescaling mechanisms. The experimental data, especially in the region 0.2 < x < 0.5, can be better reproduced by using the x-rescaling mechanism than using the Q²-rescaling mechanism. The problem of the nuclear momentum conservation in the EMC effect is further discussed. In order to make up the 4% nuclear momentum loss, the different Q²- or x-rescaling parameters for the momentum distributions of the valence and sea quarks in the nucleon structure function are chosen. The result shows that, by employing the extended x-rescaling mechanism, a better agreement between the theoretical result and the experimental data in the small x region can be obtained.