2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46930Our picture of the electroweak interactions continues to improve, with ever more precise constraints on the masses of the Higgs boson(s) and on non-standard physics. Some recent developments include: (a) a calculation of higher-order effects on the weak mixing angle which reduces scheme-dependence, (b) a long-awaited improvement in the experimental accuracy of measurement of parity violation in atomic cesium, and (c) improvements in top quark and $W$ mass measurements from Fermilab and $W$ mass measurements from LEP.15 pages, latex, 3 figuresHigh Energy Physics - Phenomenologytext