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arXiv · 1201.3428

CP-violating CFT and trace anomaly

Yu Nakayama
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Abstract

It is logically possible that the trace anomaly in four dimension includes the Hirzebruch-Pontryagin density in CP violating theories. Although the term vanishes at free conformal fixed points, we realize such a possibility in the holographic renormalization group and show that it is indeed possible. The Hirzebruch-Pontryagin term in the trace anomaly may serve as a barometer to understand how much CP is violated in conformal field theories.

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Yu Nakayama. 2012-01-26. CP-violating CFT and trace anomaly. https://doi.org/10.1016/j.nuclphysb.2012.02.006

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