arXiv:0705.0697·v1·High Energy Physics — Phenomenology
T-Parity Violation by Anomalies
Christopher T. Hill🇺🇸 · Richard J. Hill (Fermilab)🇺🇸
Abstract
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).
Comments: 17 pages