期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP04(2015)169
关键词
Supersymmetric gauge theory; Extended Supersymmetry; Supergravity Models
资金
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development and Innovation
- NSERC Discovery Grant
- ERA grant by the Province of Ontario
The partition function of four-dimensional N = 2 superconformal field theories on S-4 computes the exact Kahler potential on the space of exactly marginal couplings [1]. We present a new elementary proof of this result using supersymmetry Ward identities. The partition function is a section rather than a function, and is subject to ambiguities coming from Kahler transformations acting on the Kahler potential. This ambiguity is realized by a local supergravity counterterm in the underlying SCFT. We provide an explicit construction of the Kahler ambiguity counterterm in the four dimensional N = 2 off-shell supergravity theory that admits S-4 as a supersymmetric background.
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