2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176356We compute the beta-functions of the standard model formulated on a noncommutative spacetime. If we assume that the scale for spacetime noncommutativity is of the order of 2.2 \times 10^{15} GeV we find that the three gauge couplings of the standard model merge at a scale of 2.3 \times 10^{17} GeV. The proton lifetime is thus much longer than in conventional unification models.6 pages, published versionHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext