Anomalies, conformal manifolds, and spheres

@article{Gomis2015AnomaliesCM,
  title={Anomalies, conformal manifolds, and spheres},
  author={Jaume Gomis and Po-Shen Hsin and Z. Komargodski and Adam Schwimmer and Nathan Seiberg and Stefan Theisen},
  journal={Journal of High Energy Physics},
  year={2015},
  volume={2016},
  pages={1-31}
}
A bstractThe two-point function of exactly marginal operators leads to a universal contribution to the trace anomaly in even dimensions. We study aspects of this trace anomaly, emphasizing its interpretation as a sigma model, whose target space ℳ$$ \mathrm{\mathcal{M}} $$ is the space of conformal field theories (a.k.a. the conformal manifold). When the underlying quantum field theory is supersymmetric, this sigma model has to be appropriately supersymmetrized. As examples, we consider in some… 

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