Dai-Freed anomalies in particle physics

  title={Dai-Freed anomalies in particle physics},
  author={Inaki Garc'ia-Etxebarria and Miguel Montero},
  journal={Journal of High Energy Physics},
Abstract Anomalies can be elegantly analyzed by means of the Dai-Freed theorem. In this framework it is natural to consider a refinement of traditional anomaly cancellation conditions, which sometimes leads to nontrivial extra constraints in the fermion spectrum. We analyze these more refined anomaly cancellation conditions in a variety of theories of physical interest, including the Standard Model and the SU(5) and Spin(10) GUTs, which we find to be anomaly free. Turning to discrete… 
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