Propagators of charged particles in an external magnetic field, expanded over Landau levels

摘要

Various forms of expressions for the propagators of charged particles in aconstant magnetic field that should be used for investigations of electroweakprocesses in external uniform magnetic field are discussed. Formulas for thepropagators of the Standard Model charged $W$- and scalar $\Phi$-bosons in anarbitrary $\xi$-gauge, expanded over Landau levels, are derived for the firsttime.