New dimensions at a millimeter to a fermi and superstrings at a TeV

Ignatios Antoniadis, Nima Arkani-Hamed, Savas Dimopoulos, Gia Dvali

    Research output: Contribution to journalArticle

    Abstract

    Recently, a new framework for solving the hierarchy problem has been proposed which does not rely on low energy supersymmetry or technicolor. The gravitational and gauge interactions unite at the electroweak scale, and the observed weakness of gravity at long distances is due the existence of large new spatial dimensions. In this letter, we show that this framework can be embedded in string theory. These models have a perturbative description in the context of type I string theory. The gravitational sector consists of closed strings propagating in the higher-dimensional bulk, while ordinary matter consists of open strings living on D3-branes. This scenario raises the exciting possibility that the LHC and NLC will experimentally study ordinary aspects of string physics such as the production of narrow Regge-excitations of all standard model particles, as well more exotic phenomena involving strong gravity such as the production of black holes. The new dimensions can be probed by events with large missing energy carried off by gravitons escaping into the bulk. We finally discuss some important issues of model building, such as proton stability, gauge coupling unification and supersymmetry breaking.

    Original languageEnglish (US)
    Pages (from-to)257-263
    Number of pages7
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume436
    Issue number3-4
    StatePublished - Sep 24 1998

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    strings
    string theory
    supersymmetry
    gravitation
    gravitons
    hierarchies
    sectors
    physics
    protons
    energy
    excitation
    interactions

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    New dimensions at a millimeter to a fermi and superstrings at a TeV. / Antoniadis, Ignatios; Arkani-Hamed, Nima; Dimopoulos, Savas; Dvali, Gia.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 436, No. 3-4, 24.09.1998, p. 257-263.

    Research output: Contribution to journalArticle

    Antoniadis, I, Arkani-Hamed, N, Dimopoulos, S & Dvali, G 1998, 'New dimensions at a millimeter to a fermi and superstrings at a TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 436, no. 3-4, pp. 257-263.
    Antoniadis, Ignatios ; Arkani-Hamed, Nima ; Dimopoulos, Savas ; Dvali, Gia. / New dimensions at a millimeter to a fermi and superstrings at a TeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1998 ; Vol. 436, No. 3-4. pp. 257-263.
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