Dependence of the Nucleon Mean Free Path and Relativistic Microscopic Optical Potential on Temperature and Density in the Relativistic Model

Sun Xiuquan; Zhang Zhengjun; Zhang Jianshu; Han Yinlu; Shen Qingbiao

Chinese Physics C> 1998, Vol. 22> Issue(10) : 920-927

Dependence of the Nucleon Mean Free Path and Relativistic Microscopic Optical Potential on Temperature and Density in the Relativistic Model

Physics Department,Northwest University,Shaanxi 7100691 China Institute of Atomic Energy,Beijing 102413

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Abstract：
The relativistic microscopic optical potential,the Schrodinger equivalent potenlial and mean free paths of a nucleon at finite temperature in nuclear matter with different nuclear density are initially studied on the basis of Walecka' s model, the thermo-fielddynamics and the relativitic Dirac-Brueckner-Hartree-Fock approach. The calculatted results show that the dependences of the Schrodinger equivalent potential and mean free path of a nucleon on nuclear density are fairly sensitive and the dependences on nuclear temperature become more sensitive when nuclear density is larger.

References

[1]

Walecka J D. AM. Phys., 1974, 83 (2):491--529[2]Ma Zhongyu, Zhu Ping, Gu Yingqi et al. Nucl. Phys., 1988,A490:619-623[3]Shen Qngbiao, Feng Dachun, Zhuo Yizhong. Phys. Rev., 1991, C43(6):2773-2782[4]Han Yinlu, Shen Qngbiao, Zhuo Yizhong. High Energy Physics and Nuclear Physics(in Chinese), 1993,17 (8):751-756(韩银录，申庆彪。卓益忠。高能物理与核物理，1993,17（8）751-756)[5]Han Yinlu, Shen Qingbiao, Zhuo Yizhong. High Energy Physics and Nuclear Physics( in Chinese), 1993,17 (6):568-576(韩银录，申庆彪。卓益忠。高能物理与核物理，1993,17（6）568-756)[6]Han Yinlu, Shen Qingbiao, Zhuo Yizhong et al Nucl. Phys., 1994, A569:732-738[7]Han Yinlu, Sheng Qngbiao, Zhuo Yizhong. High Energy Physics and Nuclear Physics( in Chinese) 1988,12 (2):257-268(韩银录，申庆彪。卓益忠。高能物理与核物理，1988,12（2）257-268)

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Sun Xiuquan, Zhang Zhengjun, Zhang Jianshu, Han Yinlu and Shen Qingbiao. Dependence of the Nucleon Mean Free Path and Relativistic Microscopic Optical Potential on Temperature and Density in the Relativistic Model[J]. Chinese Physics C, 1998, 22(10): 920-927.

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

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