Price for environmental neutrino-superluminality

Gia Dvali, Alexander Vikman

    Research output: Contribution to journalArticle

    Abstract

    We ask whether the recent OPERA results on neutrino superluminality could be an environmental effect characteristic of the local neighborhood of our planet, without the need of violation of the Poincaré-invariance at a fundamental level. We show, that model-indepenently, such a possibility implies the existence of new gravitational degrees of freedom. Namely, this explanation requires the existence of a new spin-2 field of a planetary Compton wave-length that is coupled to neutrinos and the rest of the matter asymmetrically, both in the magnitude and in the sign. Sourced by the earth this field creates an effective metric on which neutrinos propagate superluminally, whereas other species are much less sensitive to the background. Such a setup, at an effective field theory level, passes all immediate phenomenological tests, but at the expense of sacrificing calculability for some of the phenomena that are under perturbative control in ordinary gravity. The natural prediction is an inevitable appearance of a testable long-range gravity- type fifth force. Despite phenomenological viability, the sign asymmetry of the coupling we identify as the main potential obstacle for a consistent UV-completion. We also discuss the possible identification of this field with a Kaluza-Klein state of an extra dimension in which neutrino can propagate.

    Original languageEnglish (US)
    Article number134
    JournalJournal of High Energy Physics
    Volume2012
    Issue number2
    DOIs
    StatePublished - 2012

    Fingerprint

    neutrinos
    gravitation
    viability
    planets
    invariance
    degrees of freedom
    asymmetry
    predictions

    Keywords

    • Beyond standard model
    • Neutrino physics
    • Space-time symmetries

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Price for environmental neutrino-superluminality. / Dvali, Gia; Vikman, Alexander.

    In: Journal of High Energy Physics, Vol. 2012, No. 2, 134, 2012.

    Research output: Contribution to journalArticle

    Dvali, Gia ; Vikman, Alexander. / Price for environmental neutrino-superluminality. In: Journal of High Energy Physics. 2012 ; Vol. 2012, No. 2.
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