Strange goings on in dense nucleonic matter
Strange goings on in dense nucleonic matter
复制标题
DOI：
10.1016/0370-2693(86)90331-x
复制
发表时间：
1986-07
影响因子：
4.4
通讯作者：
D. Kaplan;A. Nelson
中科院分区：
文献类型：
--
作者：
D. Kaplan;A. Nelson
有人提出，带电π介子在零温度和大约两倍核密度下在重子物质中形成玻色-爱因斯坦凝聚体。在这封信中，表明在稍高的密度下，人们发现了带电的卡介子凝聚物，这在很大程度上是由与重子的“stgma项”相互作用驱动的。使用 SU(3) × SU(3) 手性拉格朗日来模拟介子-重子相互作用，发现重子物质在核密度的几倍下获得了接近 1 的奇数/重子比。讨论了卡介子凝聚作为奇异物质途径的相关性及其在中子星中的作用。
It has been suggested that charged pions form a Bose-Einstein condensate in baryonic matter at zero temperature and about twice nuclear density. In this letter it is shown that at somewhat higher densities one finds a charged kaon condensate, driven to a large extent by the “stgma term” interaction with baryons. Using the SU(3) × SU(3) chiral lagrangian to model meson-baryon interactions it is found that baryonic matter acquires a strangeness-per-baryon ratio approaching one at several times nuclear density. The relevance of kaon condensation as a route to strange matter and its role in neutron stars are discussed.