The effective interactions of chiral families in four-dimensional superstrings

S. Ferrara, L. Girardello, C. Kounnas, M. Porrati

    Research output: Contribution to journalArticlepeer-review


    The low-energy effective interactions in four-dimensional superstrings with N = 2 and N = 1 space-time supersymmetry and massless twisted (family) sector are obtained. Our results rely on some general symmetry properties of superstring particle states and on tensor-calculus techniques for supergravity couplings. The novel feature is that the N = 2 quaternionic manifold and N = 1 Kähler space of the scalar superpartners of family multiplets are non-symmetric spaces whose structure can be obtained by "integrating out" the massive superstring modes.

    Original languageEnglish (US)
    Pages (from-to)358-365
    Number of pages8
    JournalPhysics Letters B
    Issue number3
    StatePublished - Aug 13 1987

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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