Off-shell Ward identities and gauge symmetries in string theory

Massimo Porrati

    Research output: Contribution to journalArticle


    I describe a new method of obtaining gauge-symmetry transformation laws for the effective lagrangian of an arbitrary string theory. The method applies to exact as well as spontaneously broken gauge symmetries. The transformation laws, exact to all orders in α' are determined inductively in the number of fields by the corresponding off-shell Ward identities. The case of broken supersymmetry is examined in some detail.

    Original languageEnglish (US)
    Pages (from-to)403-407
    Number of pages5
    JournalPhysics Letters B
    Issue number4
    StatePublished - Nov 16 1989


    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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