Minimal higgs branch for the breaking of half of the supersymmetries in N = 2 supergravity

Sergio Ferrara, Luciano Girardello, Massimo Porrati

    Research output: Contribution to journalArticle


    It is shown that the minimal Higgs sector of a generic N = 2 supergravity theory with unbroken N = 1 supersymmetry must contain a Higgs hypermultiplet and a vector multiplet. When the multiplets parametrize the quaternionic manifold SO(4,1)/SO(4), and the special Kähler manifold SU(1, 1)/U(1), respectively, a vanishing vacuum energy with a sliding massive spin 3/2 multiplet is obtained. Potential applications to N = 2 low energy effective actions of superstrings are briefly discussed.

    Original languageEnglish (US)
    Pages (from-to)155-159
    Number of pages5
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Issue number1-4
    StatePublished - Jan 11 1996


    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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