New dualities and misleading anomaly matchings from outer-automorphism twists
- Univ. of California, San Diego, La Jolla, CA (United States)
We study four-dimensional N=1, 2 superconformal theories in class S obtained by compactifying the 6d N=(2, 0) theory on a Riemann surface C with outer-automorphism twist lines. From the pair-of-pants decompositions of C, we find various dual descriptions for the same theory having distinct gauge groups. We show that the various configurations of the twist line give rise to dual descriptions for the identical theory. We compute the ’t Hooft anomaly coefficients and the superconformal indices to test dualities. Surprisingly, we find that the class S theories with twist lines wrapping 1-cycles of C have the identical ’t Hooft anomalies as the ones without the twist line, whereas the superconformal indices differ. As a result, this provides a large set of examples where the anomaly matching is insufficient to test dualities.
- Research Organization:
- Univ. of California, San Diego, La Jolla, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0009919
- OSTI ID:
- 1361192
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2017, Issue 3; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
2D CFT blocks for the 4D class S k $$ {\mathcal{S}}_k $$ theories
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journal | August 2017 |
2D CFT blocks for the 4D class $\mathcal{S}_k$ theories
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text | January 2017 |
2D CFT blocks for the 4D class $\mathcal{S}_k$ theories | text | January 2017 |
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