Chinese Physics C > 1994, Vol. 18 > Issue(S1): 56-63

In-medium N-N Elastic Cross Section

Institute of Atomic Energy, Beijing 1024132 Nankai University,Tianjin, 30071

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Abstract：
The momentum- and density-dependent coupling constants for scalar and vector fields are proposed.The saturation properties of the nuclear matter,the experimantal data of the energy-dependent optical potential and the mean free path in nuclei can be reproduced simultaneously.The in-medium n-n elastic cross section has been calculated for different densities and energies.The results show that it is important to take the density dependence of the n-n cross section into account.

References

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Jin Xuemin, Zhuo Yizhong, Zhang Xizhen and M. Sano, Nucl. Phys., A506 (1990) 655.[2]Q. Li, J. Q. Wu and C. M. Ko, Phys. Rev., C39 (1989) 849.[3]Li Zhuxia, Zhuo Yizhong, Gu Yingqi et al., Nucl. Phys., A559 (1993) 603.[4]余自强、茅广军、卓益忠等，高能物理与核物理，16 (1992) 312,[5]H. Feldmeier and J. Lindner, Z. Phys., A341 (1991) 83.[6]K. Weber, B. Blattel, W. Gassing et al., Nacl. Phys., A539 (1992) 713.[7]C. J. Horowitz and B. D. Serot, Nucl. Phys. A464 (1987) 613.[8]G, F. Bertsch, G. E. Brown, V. Koch and B. A. Li, Nucl. Phys., A490 (1988)745,[9]G, F. Bertach, S. Das Gupta, Phys. Rep., 160 (1988) 189.[10]S. Hama, B. C, Clark, E. D. Cooper et al., Phys. Rev., C41 (1990) 2737. [11]P. U, Renberg, D. F. Measday, M. Pepin et al., Nucl. Phys., A183 (1972) 81. F. F. Chen, C.[12]P. Leavitt and A. M. Shapin., Phys. Rev., 99 (1955) 857.[13]R. Brockmann aad R. Machleidt, Phys. Rev., C42 (1990) 1965.[14]B. ter Haar and R. Malfliet, Phys. Rev., C36 (1987) 1611.[15]T. P. Clements, L. Winsberg, Polynomial fits of nucleon-nucleon scattering data, UCRL-9043, February, (1960).[16]J. Cugnon, Nucl. Phys., A352 (1981) 505.

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Mao Guangjun, Li Zhuxia, Zhuo Yizhong, Han Yinlu and Yu Ziqiang. In-medium N-N Elastic Cross Section[J]. Chinese Physics C, 1994, 18(S1): 56-63.

Mao Guangjun, Li Zhuxia, Zhuo Yizhong, Han Yinlu and Yu Ziqiang. In-medium N-N Elastic Cross Section[J]. Chinese Physics C, 1994, 18(S1): 56-63. 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

In-medium N-N Elastic Cross Section

Corresponding author:Mao Guangjun,

Institute of Atomic Energy, Beijing 1024132 Nankai University,Tianjin, 30071

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1994-06-15

Abstract:The momentum- and density-dependent coupling constants for scalar and vector fields are proposed.The saturation properties of the nuclear matter,the experimantal data of the energy-dependent optical potential and the mean free path in nuclei can be reproduced simultaneously.The in-medium n-n elastic cross section has been calculated for different densities and energies.The results show that it is important to take the density dependence of the n-n cross section into account.