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武藤 巧*; 丸山 敏毅; 巽 敏隆*
Symmetry (Internet), 17(2), p.270_1 - 270_24, 2025/02
被引用回数：0 パーセンタイル：0.00(Multidisciplinary Sciences)Kaon condensation in hyperon-mixed matter, [(
) phase] which may be realized in neutron stars, is discussed on the basis of chiral symmetry. With the use of the effective chiral Lagrangian for kaon-baryon and kaon-kaon interactions; coupled with the relativistic mean field theory and universal three-baryon repulsive interaction, we clarify the effects of the 
-wave kaon-baryon scalar interaction simulated by the kaon-baryon sigma terms and vector interaction (Tomozawa-Weinberg term) on kaon properties in hyperon-mixed matter, the onset density of kaon condensation, and the equation of state with the () phase. In particular, the quark condensates in the () phase are obtained, and their relevance to chiral symmetry restoration is discussed.
Pt
Al
太田 玖吾*; 渡部 悠貴*; 芳賀 芳範; Iesari, F.*; 岡島 敏浩*; 松本 裕司*
Symmetry (Internet), 15(8), p.1488_1 - 1488_13, 2023/07
被引用回数：2 パーセンタイル：37.80(Multidisciplinary Sciences)Polycrystalline and single crystalline CePtAl samples were synthesized and characterized using EPMA, XRD, XAS and magnetization measurements. The valence of Ce in this compound is trivalent, in agreement with magnetic susceptibility and XAS spectra. The analysis of EXAFS spectra indicates the formation of a honeycomb lattice rather than the disordered hexagonal structure.
南川 拓哉*; Gao, B.*; 古城 徹*; 原田 正康*
Symmetry (Internet), 15(3), p.745_1 - 745_30, 2023/03
被引用回数：14 パーセンタイル：73.80(Multidisciplinary Sciences)We review the chiral variant and invariant components of nucleon masses and the con- sequence of their existence on the chiral restoration in extreme conditions, particularly in neutron star matter.
