In-Medium Nucleon-Nucleon Cross Sections in the Nonrelativistic Energy Region

Ge Lingxiao; Zeng Xianghua

Chinese Physics C> 1995, Vol. 19> Issue(S4) : 389-396

In-Medium Nucleon-Nucleon Cross Sections in the Nonrelativistic Energy Region

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China

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Abstract：
In this paper, the nucleon-nucleon collision cross sections σ_nn in medium in the nonrelativistic energy region are calculated using the Skyrme interaction. The energy and density dependence of nucleon-nucleon collision cross sections in medium and the influences of different Skyrme parameters on the in-medium cross section are discussed. It is found that the in-medium nucleon-nucleon collision cross sections are larger than the free nucleon-nucleon collision cross sections with Pauli corrections at lower densities, and σ_nn in medium above a special energy is larger than the free one at higher densities.
- cross section ,
- nucleon-nucleon interaction ,
- medium effects

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Ge Lingxiao and Zeng Xianghua. In-Medium Nucleon-Nucleon Cross Sections in the Nonrelativistic Energy Region[J]. Chinese Physics C, 1995, 19(S4): 389-396.

Ge Lingxiao and Zeng Xianghua. In-Medium Nucleon-Nucleon Cross Sections in the Nonrelativistic Energy Region[J]. Chinese Physics C, 1995, 19(S4): 389-396. shu

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Received: 1994-09-09

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Supported by the National Natural Science Foundation of China and LWTZ-1298 The Academy of Sciences, China.

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沈阳化工大学材料科学与工程学院沈阳 110142

In-Medium Nucleon-Nucleon Cross Sections in the Nonrelativistic Energy Region

Ge Lingxiao
Zeng Xianghua

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China

Received Date: 1994-09-09

Fund Project: Supported by the National Natural Science Foundation of China and LWTZ-1298 The Academy of Sciences, China.

Abstract: In this paper, the nucleon-nucleon collision cross sections σ_nn in medium in the nonrelativistic energy region are calculated using the Skyrme interaction. The energy and density dependence of nucleon-nucleon collision cross sections in medium and the influences of different Skyrme parameters on the in-medium cross section are discussed. It is found that the in-medium nucleon-nucleon collision cross sections are larger than the free nucleon-nucleon collision cross sections with Pauli corrections at lower densities, and σ_nn in medium above a special energy is larger than the free one at higher densities.