Constructing adjoint vector from the gluon field in SU(2) Yang-Mills theory

摘要

Recently, how to construct the adjoint unit vector n as a composite operator of the gluon field A is discussed [1][2].. Once such a composite operator is obtained, one can define magnetic monopoles and gluon condensates of mass dimension 2 as gauge invariant operators in SU(2) Yang-Mills theory.