String Theory and the Velo-Zwanziger problem

Massimo Porrati, Rakibur Rahman, Augusto Sagnotti

    Research output: Contribution to journalArticlepeer-review


    We examine the behavior of the leading Regge trajectory of the open bosonic string in a uniform electromagnetic background and present a consistent set of Fierz-Pauli conditions for these symmetric tensors that generalizes the Argyres-Nappi spin-2 result. These equations indicate that String Theory does bypass the Velo-Zwanziger problem, i.e. the loss of causality experienced by a massive high-spin field minimally coupled to electromagnetism. Moreover, we provide some evidence that only the first Regge trajectory can be described in isolation and show that the open-string spectrum is free of ghosts in weak constant backgrounds. Finally, we comment on the roles of the critical dimension and of the gyromagnetic ratio.

    Original languageEnglish (US)
    Pages (from-to)250-282
    Number of pages33
    JournalNuclear Physics B
    Issue number2
    StatePublished - May 11 2011

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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