T-Parity Violation by Anomalies

Details T-Parity Violation by Anomalies T-Parity Violation by Anomalies

2007-05-07

arxiv.org/abs/0705.0697v1

Phys.Rev.D76:115014,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages

Scientific paper

10.1103/PhysRevD.76.115014

Little Higgs theories often rely on an internal parity ("T-parity'') to suppress non-standard electroweak effects or to provide a dark matter candidate. We show that such a symmetry is generally broken by anomalies, as described by the Wess-Zumino-Witten term. We study a simple SU(3) x SU(3)/SU(3) Little Higgs scheme where we obtain a minimal form for the topological interactions of a single Higgs field. The results apply to more general models, including [SU(3) x SU(3)/SU(3)]^4, SU(5)/SO(5), and SU(6)/Sp(6).

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