We use the embedding formalism to study correlation functions of a
d-dimensional Euclidean CFT in the presence of a q co-dimensional defect. The
defect breaks the global conformal group SO(d+1,1) into SO(dβq+1,1)ΓSO(q). We calculate all possible invariant structures that can appear in
one-point, two-point and three-point correlation functions of bulk and defect
operators in mixed symmetry representation. Their generalization to n-point
correlation functions are also worked out. Correlation functions in the
presence of a defect, in arbitrary representation of SO(q), are also
calculated.Comment: 39 pages, 3 figures v2: published version. Corrected typos and
results from section 4.3 of v