Higher and low energy limits of electroweak model

The zero energy and infinite energy limits of the modified Electroweak Model with the contracted gauge group are regarded at the level of classical gauge fields. All particles of the model lose their mass in higher energy limit and lagrangian includes only massless neutral Z-bosons, massless u-quarks, neutrinos and photons, as well as their weak and electromagnetic interactions. The electroweak interactions become long-range and are carried out by neutral currents only. The infinity energy limit of the Electroweak Model is in line with the electroweak phase transition and neutrino decoupling which take place during the first second after the Big Bang.