The Lepton Flavor Violating Decays of AH in the Littlest Higgs Model with T-Parity Violation

Abstract

The T-parity in the littlest Higgs model can be broken by the anomalous Wess—Zumino—Witten term, which leads that the lightest T-odd gauge boson AH decays into the SM particles. First, we examine some lepton flavor violating decays of AH, namely AH → τ± μ∓, AH → τ±e∓, and AH → μ±e∓. We find that the branching ratios can reach 10−7 for AH → τ±μ∓, 10−8 for AH → τ±e∓, and 10−8 for AH → μ±e∓. Then, we study the lepton flavor violating plus jets signatures of the heavy charged gauge boson and mirror quarks at the LHC, and find that it is possible to be detected for pp → qHq̄H → τ±μ∓ + 4 jets, and hardly to be detected for pp → qHq̄H → τ±e∓(μ±e∓) + 4 jets and pp →WHWH → τ±μ∓ (τ±e∓,μ±e∓) + 6 jets.