Logarithmic Primary Fields in Conformal and Superconformal Field Theory
  In this note, some aspects of the generalization of a primary field to the logarithmic scenario are discussed. This involves understanding how to build Jordan blocks into the geometric definition of a primary field of a conformal field theory. The construction is extended to N=1,2 superconformal theories. For the N=0,2 theories, the two-point functions are calculated. 
Jasbir Nagi