Vacuum of the Standard Model and its Cosmological Aspects
  Recently, we have proposed a definition for the vacuum and suggest a
mechanism for symmetry breaking. In this mechanism extra massless fields,
vacuum fields, arise. We apply our method to the standard model of particle
physics and obtain vacuum sector of this model. Vacuum field of the standard
model is a four-vector with electromagnetic nature. This field is invariant
under $ U(1)_{em} $ gauge transformation. We speculate that it could be
responsible for many cosmological phenomena like inflation, dark energy and
cosmic magnetic fields.
