Parton Evolution Model and the EMC Effect

YANG Jian-Jun; ZHU Ya-Bo; SHEN Hong-Qing; SHEN Jian-Ping; LI Guang-Lie

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2024年10月30日

Chinese Physics C> 1991, Vol. 15> Issue(4) : 309-315

Parton Evolution Model and the EMC Effect

Department of Physics,Nanjing Normal University,2100242 Institute of High Energy Physics,Academia Sinica,Beijing,100039

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Abstract：
The effect of the evolution of partons in nuclear environment to the structure function of nucleons bound in a nucleus is investigated.Together with the nuclear shadowing effect caused by the spatial overlap of partons from neighboring nucleons in the nucleus in the small x region,the ratio of the average nuclear structure function of nucleus ⁵⁶Fe to the deuteron structure function is calculated and a good agreement between the calculated results and the experimental data is obtained.

References

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J. J. Aubert et al., Phys. Lett., 123B(1983), 275.[2] C. H. Llewellyn Smith, Phys. Lett., 128B(1983), 107.[3] E. Ericson and A. W. Thomas, Phys. Lett, 128B(1983), 112.[4] S. V. Akulinichev et al., JETP Lett., 42(19851, 127; Phys. Lett., 158B(1985), 485; Phys. Rev. Lett., 55(1985), 2239; Phys. Rev., C33(1986), 1551.[5] R. L. Jaffe, Phys. Rev. Lett., 50(1983), 228.[6] C. E. Carlson and T. J. Havens, Phys. Rev. Lett, 51(1983), 261.[7] K. E. Lassila and U. P. Sukhatme, Phys. Lett., 209B(1988), 343.[8] F. E. Close, R. G. Roberts and G. G. Ross, Phys. Lett, 129B(1983), 346; F. E. Close, Nucl. Phys, A446 (1985), 273c.[9] C. A. Garcia Canal et al., Phys. Rev. Lett, 53(1984), 1430.[10] G. L. Li, K. F. Liu and G. E. Brown, Phys. Lett, 213B(1988), 531.[11] G. L. Li, Z. J. Cao and C. S. Zhong, Nucl. Phys. A 509(1990), 757.[12] G. E. Brown and M. Rho, Phys. Lett., 237B(1990), 3.[13] F. J. Yndurain, "Quantum Chromodynamics" (Springer-erlag, New York, 1983).[14] D., W. Duke and J. F. Owens, Phys, Rev., D30(1984), 49.[15] EMC and BCDMS Collab., CERN Courier 27(1987) No. 2, P. 10.

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[3]	Zhu Yabo , Yang Jianjun . Nuclear Gluon Distribution Due to Parton Evolution and Recombination in Nuclear Environment. Chinese Physics C, 1998, 22(4): 341-345.
[4]	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.
[5]	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.
[6]	Ma Fengcai , Gao Song , Su Rukeng . Nucleon Effective Mass at Finite Density and a Possible Explanation of the EMC Effect. Chinese Physics C, 1996, 20(7): 651-657.
[7]	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.
[8]	YU Ming-Jian , SHEN Jian-Ping , LI Guang-Lie . Improvement of the Parton Evolution Model in the Small x Region. Chinese Physics C, 1993, 17(9): 861-864.
[9]	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.
[10]	MA Bo-Qiang , SUN Ji . THE EMC EFFECT AND THE LIGHT-CONE QUANTUM FIELD THEORY. Chinese Physics C, 1990, 14(8): 684-691.
[11]	ZHU Wei , HE Han-Xin . THE EMC EFFECT OF ROTATIONAL NUCLEI. Chinese Physics C, 1990, 14(8): 762-765.
[12]	Li Guanglie , K. F. Liu . Contribution of the Energy-Momentum Distribution of Nucleons in Nuclei to the EMC Effect. Chinese Physics C, 1989, 13(S1): 69-78.
[13]	LI Guang-Lie , . CONTRIBUTION OF THE ENERGY-MOMENTUM DISTRIBUTION NUCLEONS IN NUCLEI TO THE EMC EFFECT. Chinese Physics C, 1989, 13(1): 42-49.
[14]	LI Guang-Lie , LIU Ke-Fei . Q²-AND x- RESCALING AND NUCLEAR MOMENTUM CONSERVATION IN THE EMC EFFECT. Chinese Physics C, 1989, 13(7): 620-626.
[15]	HOU Yun-Zhi , WANG Yi-Li . THE RELATIVISTIC NUCLEAR MODEL AND EMC EFFECT. Chinese Physics C, 1989, 13(1): 35-41.
[16]	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.
[17]	LI Zi-Bang , PENG Hong-An . STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON. Chinese Physics C, 1988, 12(1): 55-62.
[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]	YAN Zong-Chao , WANG Xing-Min , YIN Peng-Cheng . THE EMC EFFECT AND THE EFFECTIVE BAG RADIUS. Chinese Physics C, 1986, 10(3): 277-282.
[20]	YANG BO-JUN . THE ROTATION-VIBRATION MODEL FOR NUCLEAR MOLECULE. Chinese Physics C, 1982, 6(6): 760-763.

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YANG Jian-Jun, ZHU Ya-Bo, SHEN Hong-Qing, SHEN Jian-Ping and LI Guang-Lie. Parton Evolution Model and the EMC Effect[J]. Chinese Physics C, 1991, 15(4): 309-315.

YANG Jian-Jun, ZHU Ya-Bo, SHEN Hong-Qing, SHEN Jian-Ping and LI Guang-Lie. Parton Evolution Model and the EMC Effect[J]. Chinese Physics C, 1991, 15(4): 309-315. shu

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Received: 1900-01-01
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

Parton Evolution Model and the EMC Effect

Corresponding author: YANG Jian-Jun,

Department of Physics,Nanjing Normal University,2100242 Institute of High Energy Physics,Academia Sinica,Beijing,100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-04-05

Abstract: The effect of the evolution of partons in nuclear environment to the structure function of nucleons bound in a nucleus is investigated.Together with the nuclear shadowing effect caused by the spatial overlap of partons from neighboring nucleons in the nucleus in the small x region,the ratio of the average nuclear structure function of nucleus ⁵⁶Fe to the deuteron structure function is calculated and a good agreement between the calculated results and the experimental data is obtained.