New window on strange quark matter as the ground state of strongly interacting matter
New window on strange quark matter as the ground state of strongly interacting matter
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DOI：
10.1103/physrevd.69.074001
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发表时间：
2003-09
影响因子：
5
通讯作者：
V. Soni;D. Bhattacharya
中科院分区：
文献类型：
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作者：
V. Soni;D. Bhattacharya
如果奇异夸克物质是物质的真正基态，那么它的能量一定比核物质低。同时，双味夸克物质必须具有比核物质更高的能量，否则后者会转化为前者。我们使用有效的手性拉格朗日函数证明，双味夸克物质（π介子凝聚态）的新低能基态的存在，缩小了奇夸克物质成为物质基态的窗口，并对当前奇夸克质量设定了新的限制。
If strange quark matter is the true ground state of matter, it must have lower energy than nuclear matter. Simultaneously, two-flavour quark matter must have higher energy than nuclear matter, for otherwise the latter would convert to the former. We show, using an effective chiral lagrangian, that the existence of a new lower energy ground state for two-flavour quark matter, the pion condensate, shrinks the window for strange quark matter to be the ground state of matter and sets new limits on the current strange quark mass.