O 'Raifeartaigh模型中的R对称破缺、逃逸方向和整体对称性
R-symmetry breaking, runaway directions and global symmetries in O'Raifeartaigh models
摘要:
我们讨论了O 'Raifeartaigh模型与一般的R-电荷分配,介绍了施自发打破R-对称性。我们认为,这些模型中的大多数有失控方向的R-对称性。此外,我们还研究了具有U(N)整体对称性的最简单模型,并证明了在一定参数范围内,亚稳真空中的R对称性是自发破缺的。
英文摘要:
We discuss O'Raifeartaigh models with general R-charge assignments, introduced by Shih to break R-symmetry spontaneously. We argue that most of these models have runaway directions related to the R-symmetry. In addition, we study the simplest model with a U(N) global symmetry and show that in a range of parameters R-symmetry is spontaneously broken in a metastable vacuum.
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