θ =π in S U N / ℤ N $$ \mathrm{S}\mathrm{U}(N)/{\mathbb{Z}}_N $$ gauge theories
Abstract In SU(N ) gauge theory, it is argued recently that there exists a “mixed anomaly” between the CP symmetry and the 1-form ℤ N $$ {\mathbb{Z}}_N $$ symmetry at θ = π, and the anomaly matching requires CP to be spontaneously broken at θ = π if the system is in the confining phase. In this pape...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2017-09-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP09(2017)137 |