2024
DOI: 10.1103/physrevd.110.066020
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Off-shell invariants of linearized 4D,N=2 supergravity in the harmonic approach

Evgeny Ivanov,
Nikita Zaigraev

Abstract: Using the harmonic superspace approach, we construct, at the linearized level, N=2 supersymmetric curvatures generalizing scalar curvature, Ricci curvature and Weyl tensor. These supercurvatures are the building blocks of various linearized 4D,N=2 Einstein supergravity invariants. The supercurvatures involving the scalar and Ricci curvatures are analytic harmonic N=2 superfields, while the Weyl supertensor is a chiral N=2 superfield. As the basic distinguished feature of our construction, all these objects are… Show more

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