We study the properties of neutron stars involving antikaon condensation with three different models in the framework of relativistic mean field (RMF) approximation theory: the Glendenning-Moszkowski (GM) model, the Zimanyi-Moszkowski (ZM) model, and the hybrid derivative coupling (HD) model. We take the isovector-scalar (δ-meson) channel interaction into account in our calculations and find that large mass neutron stars with kaon condensation can exist if the kaon optical potential is appropriately weak. The δ-meson channel interaction has a significant influence on the property of neutron stars and the effects are a little different for the three models.

• Received 17 March 2008

DOI:https://doi.org/10.1103/PhysRevC.78.025801