Superstrings with spontaneously broken supersymmetry and their effective theories

Sergio Ferrara, Costas Kounnas, Massimo Porrati, Fabio Zwirner

    Research output: Contribution to journalArticle

    Abstract

    We discuss superstring models with spontaneous breaking of N=1, 2 or 4 space-time supersymmetry, via coordinate-dependent compactifications from five to four dimensions. We provide a description of the supersymmetry breaking mechanism in the formulation with complex world-sheet fermions, and we reinterpret it in terms of special deformations of the lorentzian charge lattice. Considering a representative string model with spontaneously broken N=1 supersymmetry and massless chiral fermions, we show that the knowledge of the spectrum of states and of the flat directions completely specifies its low-energy effective lagrangian, which turns out to be a new no-scale supergravity model. We outline the qualitative difference between these models and other scenarios of gaugino (gravitino) condensation or general non-perturbative phenomena.

    Original languageEnglish (US)
    Pages (from-to)75-105
    Number of pages31
    JournalNuclear Physics, Section B
    Volume318
    Issue number1
    DOIs
    StatePublished - May 15 1989

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    supersymmetry
    fermions
    gravitinos
    supergravity
    strings
    condensation
    formulations
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Superstrings with spontaneously broken supersymmetry and their effective theories. / Ferrara, Sergio; Kounnas, Costas; Porrati, Massimo; Zwirner, Fabio.

    In: Nuclear Physics, Section B, Vol. 318, No. 1, 15.05.1989, p. 75-105.

    Research output: Contribution to journalArticle

    Ferrara, Sergio ; Kounnas, Costas ; Porrati, Massimo ; Zwirner, Fabio. / Superstrings with spontaneously broken supersymmetry and their effective theories. In: Nuclear Physics, Section B. 1989 ; Vol. 318, No. 1. pp. 75-105.
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