T-Parity Violation by Anomalies

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).

17 pages

References in corpus (4)

• Topological Physics of Little Higgs Bosons
• Collider Signature of T-quarks
• Anomalies, Chern-Simons Terms and Chiral Delocalization in Extra Dimensions
• Exact Equivalence of the D=4 Gauged Wess-Zumino-Witten Term and the D=5 Yang-Mills Chern-Simons Term

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• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
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• T-parity, its problems and their solution
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• Precision Measurements of Little Higgs Parameters at the International Linear Collider
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• Not T-parity but C-parity