Manifest superconformal covariance in six-dimensional (2,0) theory

A superconformal generalization of Dirac's formalism for manifest conformalcovariance is presented and applied to the free (2,0) tensor multiplet fieldtheory in six dimensions. A graded symmetric superfield, defined on a superconein a higher-dimensional superspace is introduced. This superfield transformslinearly under the transformations of the supergroup OSp(8*|4), which is thesuperconformal group of the six-dimensional (2,0) theory. We find therelationship between the new superfield and the conventional (2,0) superfieldsin six dimensions and show that the implied superconformal transformation lawsare correct. Finally, we present a manifestly conformally covariant constrainton the supercone, which reduces to the ordinary differential constraint for thesuperfields in the six-dimensional space-time.Comment: 12 pages, LaTeX. v2: minor clarification adde