2017/07/31 by Sergei M. Kuzenko, Gabriele Tartaglino-Mazzucchelli · 1 citation
Physics and Astronomy · #hep-th
paper · pdf · doi:10.1103/physrevd.97.026003
published as Phys. Rev. D 97, 026003 (2018) · 20 pages; V3: typos corrected
arxiv created 2018/01/09 · arxiv updated 2018/01/17
We propose new off-shell models for spontaneously broken local \cal N=2 supersymmetry, in which the supergravity multiplet couples to nilpotent Goldstino superfields that contain either a gauge one-form or a gauge two-form in addition to spin-1/2 Goldstone fermions and auxiliary fields. In the case of \cal N=2 Poincaré supersymmetry, we elaborate on the concept of twisted chiral superfields and present a nilpotent \cal N=2 superfield that underlies the cubic nilpotency conditions given in arXiv:1707.03414 in terms of constrained \cal N=1 superfields.