TY - JOUR AU - Minaiev, P. AU - Skalozub, V. PY - 2019/09/18 Y2 - 2024/03/28 TI - The Electroweak Phase Transition in a Spontaneously Magnetized Plasma JF - Ukrainian Journal of Physics JA - Ukr. J. Phys. VL - 64 IS - 8 SE - DO - 10.15407/ujpe64.8.710 UR - https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019470 SP - 710 AB - <p>We investigate the electroweak phase transition (EWPT) in the Minimal (One Higgs doublet) Standard Model (SM) with account for the spontaneous generation of magnetic and chromo-magnetic fields. As it is known, in the SM for the mass of a Higgs boson greater than 75 GeV, this phase transition is of the second order. But, according to Sakharov’s conditions for the formation of the baryon asymmetry in the early Universe, it has to be strongly of the first order. In the Two Higgs doublets SM, there is a parametric space, where the first-order phase transition is realized for the realistic Higgs boson mass m<sub>H</sub> = 125 GeV. On the other hand, in the hot Universe, the spontaneous magnetization of a plasma had happened. The spontaneously generated (chromo) magnetic fields are temperature-dependent. They influence the EWРT. The color chromomagnetic fields B<sub>3</sub> and B<sub>8</sub> are created spontaneously in the gluon sector of QCD at a temperature T &gt; T<sub>d</sub> higher the deconfinement temperature T<sub>d</sub>. The usual magnetic field H has also to be spontaneously generated. For T close to the T<sub>EWPT</sub> , these magnetic fields could change the kind of the phase transition.</p> ER -