NNπ Interaction at Finite Temperature and Finite Density
Hu Sizhu; Zheng Guotong; Cai Shengshan; Su Rukeng
Журнал:
Chinese Physics Letters
Дата:
1993-02-01
Аннотация:
By means of the Matsubara imaginary-time Green's function method, we extend the NNπ interaction to finite-temperature and finite-density by summing bubble diagrams. We find that the effective mass of pion increases but the effective NNπ interaction decreases as the density and/or temperature increase.
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