Gauged R-symmetry and de Sitter vacua in supergravity and string theory
arXiv:1403.1534 · doi:10.1016/j.nuclphysb.2014.06.008
Abstract
A new class of metastable de Sitter vacua is presented and analyzed in N =1 supergravity and string theory with tunable (infinitesimally small) value of the cosmological constant. They are based on a gauged R-symmetry and the minimal spectrum contains a vector and a linear multiplet of the string dilaton or of a compactification modulus. In the minimum of the scalar potential supersymmetry is broken by an expectation value of both a D- and F-term.
25 pages, 1 figure
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