  We calculate the virtual electroweak Sudakov (double) logarithms at one- and
two-loop level for arbitrary on-shell/on-resonance particles in the Standard
Model. The associated Sudakov form factors apply in a universal way to
arbitrary non-mass-suppressed electroweak processes at high energies, although
this universality has to be interpreted with care. The actual calculation is
performed in the temporal Coulomb gauge, where the relevant contributions from
collinear-soft gauge-boson exchange are contained exclusively in the
self-energies of the external on-shell/on-resonance particles. In view of the
special status of the time-like components in this gauge, a careful analysis of
the asymptotic states of the theory is required. From this analysis we derive
an all-order version of the Goldstone-boson Equivalence Theorem without the
need for finite compensation factors. By exploiting conditions obtained from
non-renormalization requirements, which are a consequence of our choice of
gauge, we show that the Sudakov corrections can be extracted through a
combination of energy derivatives and projections by means of external sources.
We observe that the Standard Model behaves dynamically like an unbroken theory
in the Sudakov limit, in spite of the fact that the explicit particle masses
are needed at the kinematical (phase-space) level while calculating the Sudakov
form factors.
