STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON

LI Zi-Bang; PENG Hong-An

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1988, Vol. 12> Issue(1) : 55-62

STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON

LI Zi-Bang ^, ,
PENG Hong-An

Liao Ning Normal University2 Peking University

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Abstract：
Assuming a nucleon as a thermodynamical system composed of partons (quarks and glue),we have disoussed its temperation T and chemical potential μ and nave derived relations between the x distribution functions of partons in the nucleon and its correspond statistical distribution functions.Through comparing glue of the nucleon with photons of the black-body,we have got effective temperature of the nucleon.By assuming μ of u,d quark to be the same and choosing their reasonable values,and after using the rescaling scheme to determine T of the mucleon,the statistical model could explain the EMC effect very well.If the gluon's chemical potential has a small and negative quantity,the statistical model could also fit the ratio R_g in μ+N→J/ψ+X process quite well and could explain why it seems "too large" in the small x region.

References

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R. G. Roberts. 1984年Bad Honnef中能电子光子作用工作会议报告.[2] J. J. Aubert et al., (EMC), Phys. Lett., 1528(1985), 433.[3] 黄推承、李子邦、彭宏安, 高能物理与核物理, 11(1987), 175[4] C. Angelini et al., Phys. Lett., 1548(1985), 328.[5] S. GuptaK. V. Sarma, Zeit. Phys., C29(1985), 329.[6] 刘连寿、彭宏安、赵维勤, 中国科学, AXXVIII (1985), 63.[7] 朗道, 统计物理, (中文版)'104.1[8] 注志诚, 热力学与统计物理.[9] R. C. Hwa O1TS-293(1986)(预印本).[10] R. J. N. Phillips 1980年Wiscon sion第20届国际高能物理会议文集.p1040.

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LI Zi-Bang and PENG Hong-An. STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON[J]. Chinese Physics C, 1988, 12(1): 55-62.

LI Zi-Bang and PENG Hong-An. STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON[J]. Chinese Physics C, 1988, 12(1): 55-62. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

STATISTICAL MODEL OF PARTONS IN NUCLEON,EMC EFFECT AND GLUE DISTRIBUTION FUNCTIONS OF NUCLEON

LI Zi-Bang ^,
PENG Hong-An

Corresponding author: LI Zi-Bang,

Liao Ning Normal University2 Peking University

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1988-02-05

Abstract: Assuming a nucleon as a thermodynamical system composed of partons (quarks and glue),we have disoussed its temperation T and chemical potential μ and nave derived relations between the x distribution functions of partons in the nucleon and its correspond statistical distribution functions.Through comparing glue of the nucleon with photons of the black-body,we have got effective temperature of the nucleon.By assuming μ of u,d quark to be the same and choosing their reasonable values,and after using the rescaling scheme to determine T of the mucleon,the statistical model could explain the EMC effect very well.If the gluon's chemical potential has a small and negative quantity,the statistical model could also fit the ratio R_g in μ+N→J/ψ+X process quite well and could explain why it seems "too large" in the small x region.