2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173406The unparticle field operator can be expanded in terms of creation and destruction operators corresponding to particles with a continuous mass spectrum. Hence, when the 4-momentum of an unparticle is measured, then the unparticle manifests as an ordinary particle with a definite (but arbitrary) mass.5 pages, revised, to appear in Mod. Phys. Lett. AHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext