K+-NUCLEON 2-BODY POTENTIAL AND K+-NUCLEUS OPTICAL-POTENTIAL

被引:0
|
作者
NING, P
ZHAO, E
LI, P
机构
[1] NANKAI UNIV,DEPT PHYS,TIANJIN 300071,PEOPLES R CHINA
[2] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
来源
EUROPHYSICS LETTERS | 1993年 / 21卷 / 09期
关键词
MESON-INDUCED AND HYPERON-INDUCED REACTIONS AND SCATTERING;
D O I
10.1209/0295-5075/21/9/004
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The K+-nucleon two-body potential is derived in the framework of the constituent quark model and it may provide reasonable explanation for the large K+-nucleon scattering phase shift of P-wave I = 0, J = 1/2 channel. On the basis of the derived K+-nucleon interaction, the real part of the K+-nucleus optical potential is constructed. Reasonable good agreement between theoretical cross-section and experimental data may be reached by requiring a weak imaginary part of the optical potential, as expected for the K+-nucleus scattering.
引用
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页码:897 / 902
页数:6
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