2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/205452We construct efficient interpolating fields for lattice spectroscopy of mesons by applying covariant derivatives on Jacobi smeared quark sources. These interpolators are tested in a quenched calculation of excited mesons based on the variational method. We present results for pseudoscalar, scalar, vector and pseudovector mesons.10 pages, tables added, final versionHigh Energy Physics - Latticetext