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Quantum effects on four-dimensional space-time symmetries

Journal Article · · Phys. Rev. Lett.; (United States)

It is shown that, in gauge theories of chiral Weyl fermions, quantum effects can induce breakdowns of relativistic space-time symmetries in four dimensions. These so-called ''anomalies'' are caused by U(1) gauge fields, and in combination with gravitational field; non-Abelian gauge fields have no effect. In the standard Glashow-Weinberg-Salam SU(2) x U(1) model, the U(1) charges of the chiral fermions are such that, within each family, these relativistic anomalies cancel out for leptons and quarks separately.

Research Organization:
Institute for Theoretical Physics, State University of New York at Stony Brook, Stony Brook, New York 11794
OSTI ID:
6247355
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 53:23; ISSN PRLTA
Country of Publication:
United States
Language:
English