Phys. Rev. Lett. 37, 8–11 (1976)Symmetry Breaking through Bell-Jackiw AnomaliesReceived 22 March 1976; published in the issue dated 5 July 1976 In models of fermions coupled to gauge fields certain current-conservation laws are violated by Bell-Jackiw anomalies. In perturbation theory the total charge corresponding to such currents seems to be still conserved, but here it is shown that nonperturbative effects can give rise to interactions that violate the charge conservation. One consequence is baryon and lepton number nonconservation in V-A gauge theories with charm. Another is the nonvanishing mass squared of the η. © 1976 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.37.8
DOI:
10.1103/PhysRevLett.37.8
PACS:
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