This is a pedagogical introduction to the harmonic superspace method in extended
supersymmetry. Inspired by exciting developments in superstring theory, it provides a …

This graduate-level primer presents a tutorial introduction to and overview of N= 2
supergravity theories-with 8 real supercharges and in 4, 5 and 6 dimensions. First, the …

We provide a unified description of the three covariant superspace approaches to ${\cal N}=
2$ conformal supergravity in four dimensions:(i) conformal superspace;(ii) $\mathsf {U}(2) …

JHEP03(2011)120 Page 1 JHEP03(2011)120 Page 2 JHEP03(2011)120 Page 3 JHEP03(2011)120
1 Introduction Supergravity in three space-time dimensions was introduced as early as …

A bstract We construct manifestly 4D,\(\mathcal {N}\)= 2 supersymmetric and gauge invariant
off-shell cubic couplings of matter hypermultiplets to the higher integer spin gauge\(\mathcal …

A bstract As a continuation of our previous papers arxiv: 2109.07639 and arxiv:
2202.08196, we study the linearized structure of the manifestly 4D,\(\mathcal {N}\)= 2 …

A bstract We present, for the first time, the complete off-shell 4D,\(\mathcal {N}\)= 2 superfield
actions for any free massless integer spin s≥ 2 fields, using the\(\mathcal {N}\)= 2 harmonic …

The volume of on-shell D= 4, superspace is shown to vanish. Despite this, it is shown that
there is a fully supersymmetric and duality-invariant candidate∇ 8 R 4 counterterm …

Using the harmonic superspace approach, we construct, at the linearized level, N= 2
supersymmetric curvatures generalizing scalar curvature, Ricci curvature and Weyl tensor …

This paper concludes the formulation of N= 2 supergravity in harmonic superspace. The
authors generalize the approach to include conformal supergravity. The superconformal …