Abelian tensor hierarchy in 4D ${\cal N}=1$ conformal supergravity
  We consider Abelian tensor hierarchy in four-dimensional ${\cal N}=1$ supergravity in the conformal superspace formalism, where the so-called covariant approach is used to antisymmetric tensor fields. We introduce $p$-form gauge superfields as superforms in the conformal superspace. We solve the Bianchi identities under the constraints for the superforms. As a result, each of form fields is expressed by a single gauge invariant superfield. The action of superforms is shown with the invariant superfields. We also show the relation between the superspace formalism and the superconformal tensor calculus. 
Shuntaro Aoki, Tetsutaro Higaki, Yusuke Yamada, Ryo Yokokura
hep-th