2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43679We report on a new method to a global fit of the CKM matrix by using the necessary and sufficient condition the data have to satisfy in order to find a unitary matrix compatible with them. This condition writes as $-1\le \cosϕ\le 1$ where $ϕ$ is the phase that accounts for CP violation. By using it we get that the experimental data are to a high degree compatible to unitarity and that $ϕ$ takes values around $90^0$, in contrast to the previous determinations. Numerical results are provided for the CKM matrix entries, the mixing angles between generations and all the angles of the standard unitarity triangle.Revtex4, 5 pages, corrected a typos in formula (8), checked up numerical calculationsHigh Energy Physics - Phenomenologytext