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 |
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言語種別 | 英語 |
発行・発表の年月 | 2014 |
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 | Coexistence of Antikaons and Hyperons in Nuclei and in Neutron Stars |
執筆形態 | 共著 |
掲載誌名 | JPS Conference Proceedings (The 12th Asia Pacific Physics Conference) |
掲載区分 | 国外 |
出版社・発行元 | The Physical Society of Japan |
巻・号・頁 | 1,pp.013081-1-013081-4 |
著者・共著者 | Takumi Muto, Toshiki Maruyama, Toshitaka Tatsumi |
概要 | Multi-strangeness system consisting of K^- mesons and baryon is investigated in a unified way for both nuclei and neutron-star matter, based on the relativistic mean-field theory for baryon-baryon interaction, coupled with the effective chiral Lagrangian incorporating K^- baryon and nonlinear K^-K^- interactions.
It is shown that the ground state of the multi-strangeness nuclei is given by multi-hypernuclei without bound K^- mesons for moderate K^- optical potential depths. In neutron-star matter, coexistence of kaon condensation and hyperons is plausible, but leads to significant softening of the equation of state, which should be reconciled with recent neutron-star observations. |