Notes on a cure for higher-spin acausality

Massimo Porrati, Rakibur Rahman

    Research output: Contribution to journalArticlepeer-review


    We present a Lagrangian describing a massive charged spin-2 field and a scalar in a constant electromagnetic background, and we provide a consistent description of the system. The Lagrangian, derived from string field theory through a suitable dimensional reduction, propagates the correct number of degrees of freedom within the light cone in any space-time dimension less than 26. We briefly discuss the higher-spin generalization of this construction, that cures the pathologies of a massive charged particle of arbitrary integer spin by introducing only finitely many new massive degrees of freedom.

    Original languageEnglish (US)
    Article number045013
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Issue number4
    StatePublished - Aug 10 2011

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Physics and Astronomy (miscellaneous)


    Dive into the research topics of 'Notes on a cure for higher-spin acausality'. Together they form a unique fingerprint.

    Cite this