Some features of SUSY breaking in N = 2 supergravity

S. Cecotti, L. Girardello, M. Porrati

    Research output: Contribution to journalArticle

    Abstract

    We discuss some features of SUSY breaking in N = 2 supergravity. First, we show that in a general N = 2 Sugra model (constructed according to the tensor calculus) all stationary points of the potential, at Λ = 0, are fully supersymmetric if the compensating multiplet is not gauged. Thus a viable super-Higgs effect in N =2 supergravity can occur only in presence of a Fayet-Iliopoulos term. Then we present an explicit model with two scales of breaking in anti-de Sitter space. Moreover, the ratio of the two gravitino masses is sliding i.e. not determined by the classical potential. In the extreme situation one of the gravitino masses equals -Λ 3, and thus we have partial super-Higgs (in AdS space). The cosmological constant may be arranged to an arbitrary small value while keeping the mass of the heavy gravitino constant.

    Original languageEnglish (US)
    Pages (from-to)367-371
    Number of pages5
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume151
    Issue number5-6
    DOIs
    StatePublished - Feb 21 1985

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    gravitinos
    supergravity
    calculus
    sliding
    fine structure
    tensors

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Some features of SUSY breaking in N = 2 supergravity. / Cecotti, S.; Girardello, L.; Porrati, M.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 151, No. 5-6, 21.02.1985, p. 367-371.

    Research output: Contribution to journalArticle

    Cecotti, S. ; Girardello, L. ; Porrati, M. / Some features of SUSY breaking in N = 2 supergravity. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1985 ; Vol. 151, No. 5-6. pp. 367-371.
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