Nucleon-nucleon interaction of a chiral sigma - omega model at finite temperature
Ru-Keng Su; Shi-Jie Yang; Song Gao; P K N Yu; Ru-Keng Su; World Lab., China Center of Adv. Sci. & Technol., Beijing, China; Shi-Jie Yang; World Lab., China Center of Adv. Sci. & Technol., Beijing, China; Song Gao; World Lab., China Center of Adv. Sci. & Technol., Beijing, China; P K N Yu; World Lab., China Center of Adv. Sci. & Technol., Beijing, China
Журнал:
Journal of Physics G: Nuclear and Particle Physics
Дата:
1994-11-01
Аннотация:
By using the imaginary time Green's function method, the nucleon-nucleon interaction of the chiral sigma - omega model has been investigated under the one-loop approximation. The effective masses of the pion, sigma -meson and omega -meson at finite temperature are given. We have found that the potential well of the nucleon-nucleon interaction becomes shallow as the temperature increases. At a critical temperature T<sub>c</sub> (70 MeV) the potential well disappears.
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