2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176290A first study of numerical Monte Carlo simulations with two quark doublets, a mass-degenerate one and a mass-split one, interpreted as u, d, s and c quarks, is carried out in the framework of the twisted mass Wilson lattice formulation. Tuning the bare parameters of this theory is explored on 12^3x24 and 16^3x32 lattices at lattice spacings a=0.20fm and a=0.15fm, respectively.27 pages, 6 figuresHigh Energy Physics - Latticetext