arXiv subjects
Publications and source records attributed to A. M. Shitova.
Various forms of expressions for the propagators of charged particles in a constant magnetic field that should be used for investigations of electroweak processes in external uniform magnetic field are discussed. Formulas for the propagators of the Standard Model charged $W$- and scalar $Φ$-bosons in an arbitrary $ξ$-gauge, expanded over Landau levels, are derived for the first time.
Qualitative analysis of additional energy of neutrino and antineutrino in plasma is performed. A general expression for the neutrino self-energy operator is obtained in the case of ultra-high energies when the local limit of the weak interaction is not valid. The neutrino and antineutrino additional energy in plasma is calculated using the dependence of the $W$ and $Z$--boson propagators on the momentum transferred. The kinematical region for the neutrino radiative transition (the so-called "neutrino spin light") is established for some important astrophysical cases. For high energy neutrino and antineutrino, dominating transition channels in plasma, $ν_e + e^+ \to W^+$, $\barν_e + e^- \to W^-$ and $\barν_{\ell} + ν_{\ell} \to Z$, are indicated.