ムトウ　タクミ   Takumi Muto   武藤　巧    所属   千葉工業大学  情報変革科学部 教育センター（情報変革科学部）    職種   教授
言語種別	英語
発行・発表の年月	2019/02
形態種別	国際会議プロシーディングス
査読	査読あり
標題	Effects of Universal Three-Body Repulsion on Kaon Condensation in Hyperonic Matter
執筆形態	共著
掲載誌名	JPS Conference Proceedings
掲載区分	国外
出版社・発行元	Physical Society of Japan
巻・号・頁	26,pp.024019-1-024019-4
総ページ数	4
担当区分	筆頭著者
国際共著	国際共著
著者・共著者	Takumi Muto, Toshiki Maruyama, Toshitaka Tatsumi, and Tatsuyuki Takatsuka
概要	The equation of state with coexistent phase of kaon condensation and hyperons [the ($Y+K$) phase] in highly dense matter is constructed so as to be consistent with the recent observations of massive neutron stars. The nonlinear effective chiral Lagrangian is combined with the relativistic mean-field theory. The universal three-body repulsive force is further introduced based on the string-junction model. It is shown that the stiff equation of state with the ($Y+K$) phase, leading to the maximum mass of neutron stars as large as two solar mass, can be obtained for the larger value of the range parameter of the repulsive core included in the string-junction model. Some problems to be resolved such as causality are mentioned.