The standard model of the electroweak interaction

Abstract

We will consider here the Glashow-Weinberg-Salam theory of the weak and electromagnetic interactions, which usually is called the Standard Model (SM). This theory is one of the greatest achievements of particle physics of the twentieth century. The SM predicted the existence of new particles (charmed, bottom, top), a new class of the weak interaction (Neutral currents), W± and Z0 vector bosons and masses of these particles, the existence of the third type of neutrino (ντ), the existence of the scalar Higgs boson etc. All predictions of the Standard Model are in perfect agreement with existing experimental data. In 2012 in the ATLAS and CMS experiments at LHC (CERN) a scalar particle with the mass ≃ 125 GeV was discovered. All existing data (production cross section, decay rates) are compatible with the assumption that the discovered particle is the predicted by the Standard Model Higgs boson.