2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194002Recently H. Georgi has introduced an unparticle $\unpart$ in order to describe the low energy physics of a nontrivial scale invariant sector of an effective theory. In this work we have explored the phenomenology of an unparticle using the lepton flavour violating decay $μ^{-}\to e^{-} e^{+} e^{-}$, and found that the branching ratio of this decay is strongly dependent on the scaling dimension.7 pages, 3 figures; typographical errors corrected and references added in version 2High Energy Physics - Phenomenologytext