info:eu-repo/semantics/article
Limits on the electromagnetic and weak dipole moments of the tau-lepton in a 331 model
Fecha
2014Autor
Gutiérrez Rodríguez, Alejandro
Hernández Ruíz, María de los Angeles
Castañeda Almanza, Cosmy Polet
Espinoza, Augusto
Chubykalo, Andrew
Institución
Resumen
Using as an input the data obtained by the L3 and OPAL Collaborations for the reaction e+e− → τ+τ−γ at the
Z1-pole, we obtained bounds on the electromagnetic and weak dipole moments of the tau-lepton in the context of a 331 model. 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 tau weak dipole moments which are consistent with the bounds obtained recently by the DELPHI, ALEPH and BELLE Collaborations from the reaction e+e− → τ+τ−. Our work complements other studies on the electromagnetic and weak dipole moments of the tau-lepton.