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Anomaly constraints and new U(1) gauge bosons
Phys. Rev. D 34, 235 – Published 1 July, 1986
DOI: https://doi.org/10.1103/PhysRevD.34.235
Abstract
Just as the hypercharge assignments in the standard model follow from anomaly freedom, so there are anomaly constraints on any possible extra U(1) charges. We show that one can always distinguish these from the constraints from grand unification. We discuss various predictions when the standard model is unified but the new U(1) is not, when all the groups are unified, and when none of them are. New low-energy U(1) groups imply new low-energy fermions. We show how information about new Z bosons can tell us about such fermions.
References (6)
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