Abstract： 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.
HU Sizhu;ZHENG Guotong;CAI Shengshan;SU Rukeng. NNπ Interaction at Finite Temperature and Finite Density[J]. 中国物理快报, 1993, 10(2): 79-82.
HU Sizhu, ZHENG Guotong, CAI Shengshan, SU Rukeng. NNπ Interaction at Finite Temperature and Finite Density. Chin. Phys. Lett., 1993, 10(2): 79-82.
1993, Vol. 10 
