The Case for a Standard Model with Anomalous U(1)

P. Ramond

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The Case for a Standard Model with Anomalous U(1)

P. Ramond

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Abstract

A gauged phase symmetry with its anomalies cancelled by a Green-Schwarz mechanism, broken at a large scale by an induced Fayet-Iliopoulos term, is a generic feature of a large class of superstring theories. It induces many desirable phenomenological features: Yukawa coupling hierarchy, the emergence of a small Cabibbo-like expansion parameter, relating the Weinberg angle to $b-τ$ unification, and the linking of R-parity conservation to neutrino masses. Some are discussed in the context of a three-family model which reproduces all quark and lepton mass hierarchies as well as the solar and atmospheric neutrino oscillations.

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P. Ramond. 1998-08-31. The Case for a Standard Model with Anomalous U(1). https://arxiv.org/abs/hep-ph/9808488

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