The K ¯ - nucleus Elastic Scattering and Momentum Dependent Optical Potentials. Nankai University Xian-Hui Zhong. K-G equation for K-nucleus interaction. K-G equation ：
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where k is the K¯-nucleus interaction wave number ，is the reduce energy， is the coulomb potential. K atom and K¯- nucleus scattering …all need determine Ｋ- nucleus optical potential .
Some results from different models：
Does Ｋ- nucleus optical potential have momentum dependent? PRC,67(2003)047601
Saturation nuclear density
The virtual part of potential : DD model
can not reproduce the experimental data at all！？
Considering momentum dependence, the experimental data can be fit well！