Alejandro Gutierrez-Rodriguez (Zacatecas):

Bounding the Electromagnetic and weak dipole moments of the τ-lepton in a simplest little Higgs model

Abstract:

From the total cross section for the reaction e⁺e^- → τ⁺ τ ^- γ at the Z₁ pole and in the framework of a simplest little Higgs model (SLHM), we get a limit on the characteristic energy scale of the model f, f ≥ 5.4 TeV, which in turn induces bounds on the electromagnetic and weak dipole moments of the τ-lepton. Our bounds on the electromagnetic moments are consistent with the bounds obtained by the L3 and OPAL collaborations for the reaction e⁺e^- → τ⁺ τ ^- γ We also obtained bounds on the τ weak dipole moments which are consistent with the bounds obtained recently by the DELPHI and ALEPH collaborations from the reaction e⁺e^- → τ⁺ τ ^- γ .