(Quasi)localized gauge field on a brane: Dissipating cosmic radiation to extra dimensions?

Gia Dvali, Gregory Gabadadze, M. Shifman

    Research output: Contribution to journalArticle

    Abstract

    We propose a mechanism ensuring (quasi)localization of massless gauge fields on a brane. The mechanism does not rely on BPS properties of the brane and can be realized in any theory where charged particles are confined to the world-volume. The localized matter fluctuations induce a gauge kinetic term on the brane. At short distances the resulting propagator for the gauge field is identical to the four-dimensional propagator. The gauge theory on the brane is effectively four-dimensional at short distances; it becomes higher-dimensional on very large (cosmic) scales. The brane-bulk system exhibits the phenomenon of "infrared transparency". As a result, only very low frequency modes can escape into extra dimensions. In this framework the large wavelength cosmic radiation can dissipate in extra space at a rate that may be observable, in principle. We briefly discuss some astrophysical consequences of this scenario. The same mechanism of localization of gauge fields may work in Kaplan's framework for domain wall chiral fermions on lattices.

    Original languageEnglish (US)
    Pages (from-to)271-280
    Number of pages10
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume497
    Issue number3-4
    DOIs
    StatePublished - Jan 11 2001

    Fingerprint

    cosmic rays
    very low frequencies
    propagation
    escape
    domain wall
    gauge theory
    astrophysics
    charged particles
    fermions
    kinetics
    wavelengths

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    (Quasi)localized gauge field on a brane : Dissipating cosmic radiation to extra dimensions? / Dvali, Gia; Gabadadze, Gregory; Shifman, M.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 497, No. 3-4, 11.01.2001, p. 271-280.

    Research output: Contribution to journalArticle

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