@article{f93881afa83b45a089eff7c44d8231c1,
title = "An exceptional N=2 supergravity with flat potential and partial super-higgs",
abstract = "A new N=2 supergravity model is presented, it is exceptional in the sense that it is not described by the usual tensor calculus. It has flat (i.e., identically vanishing) scalar potential and partial breaking to N=1 supersymmetry (γ=0). Our construction is based on a suitable {"}contraction{"} of standard Ads supergravity models with matter. The procedure to obtain flat models with hierarchical supersymmetry breakings is also given.",
author = "S. Cecotti and L. Girardello and M. Porrati",
note = "Funding Information: I Address after 1 January 1986: Dipartimento di Fisica, Universith degli Studi. 1-20133 Milan. Italy. 2 Partially supported by MPI and INFN. 3 Address after 1 November 1985: Physics Department, UCLA, Los Angeles, CA 9(X)24. USA. t For general reviews of the superconformal calculus see ref. \[4\]. ,2 Note that in the tensorial framework, we cannot have a nontrivial flat model in the presence of charged ,3 In the simplest case, the masses are sliding but the ratio of the two gravitino masses is uniquely fixed.",
year = "1986",
month = feb,
day = "27",
doi = "10.1016/0370-2693(86)91465-6",
language = "English (US)",
volume = "168",
pages = "83--88",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "1-2",
}