Effect of δ Meson on Kaon Effective Mass
- Received Date: 2004-03-29
- Accepted Date: 1900-01-01
- Available Online: 2004-11-05
Abstract: The density dependent relativistic hadron field theory(DDRH) containing meson δ is applied to very asymmetric nuclear matter. Because of the interaction between the nucleons and the scalar-isovector meson δ,the property of the asymmetric nuclear matter is so different from symmetric nuclear matter.The relations between scale density ρS and vector density ρB have been calculated. We also investigate the effective masses of nucleons in symmetric and asymmetric nuclear matter by using DDRH.The density dependence of in-medium kaon and antikaon effective masses has been obtained and then the effects of both the density dependence of the coupling constant Γi(ρ)(i=σ,ω,δ,ρ) and the scalar-isovector meson δ were discussed.