  We propose a new reformulation of Yang-Mills theory in which three- and
four-gluon self-interactions are eliminated at the price of introducing a
sufficient number of auxiliary fields. We discuss the validity of this
reformulation in the possible applications such as dynamical gluon mass
generation, color confinement and glueball mass calculation. We emphasize the
transverse-gluon pair condensation as the basic mechanism for dynamical mass
generation. The confinement is realized as a consequence of a fact that the
auxiliary fields become dynamical in the sense that they acquire the kinetic
term due to quantum corrections.
