Discrete theta angle from an O5-plane
Jul 22, 2017
46 pages
Published in:
- JHEP 11 (2017) 041
- Published: Nov 8, 2017
e-Print:
- 1707.07181 [hep-th]
Report number:
- KIAS-P17052
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Abstract: (Springer)
We consider 5d = 1 Sp(1) gauge theory based on a brane configuration with an O5-plane. At the UV fixed point, the theory with no matter enjoys enhanced global symmetry SU(2) or U(1) depending on the discrete theta angle θ = 0, π (mod 2π). A naive brane configuration with an O5-plane, however, does not distinguish two different theories, as it describes the weak coupling region. We devise a technique for computing 5d Seiberg-Witten curve of the two theories from the brane web with an O5-plane. Their Seiberg-Witten curves show that their M5 configurations under the presence of OM5-planes are different. The decompactification limit of each Seiberg-Witten curve also shows distinct phase structures in their Coulomb branch leading to significantly different (p, q) 5-brane configurations with an O5-plane in the strong coupling region.Note:
- v1: 45 pages, 36 figures, v2: published version, v3: a typo corrected
- Brane Dynamics in Gauge Theories
- Field Theories in Higher Dimensions
- p-branes
- symmetry: global
- membrane model
- critical phenomena
- gauge field theory
- strong coupling
- weak coupling
- fixed point
References(33)
Figures(58)