Football shaped extra dimensions and the absence of self-tuning

Jaume Garriga, Massimo Porrati

    Research output: Contribution to journalArticle

    Abstract

    There have been some recent claims that brane-worlds of co-dimension two in a 6D bulk with compact extra dimensions may lead to self-tuning of the effective 4D cosmological constant. Here we show that if a phase transition occurs on a flat brane, so as to change its tension, then the brane will not remain flat. In other words, there is really no self-tuning in such models, which can in fact be understood in four-dimensional terms and are therefore subject to Weinberg's no-go theorem.

    Original languageEnglish (US)
    Pages (from-to)781-790
    Number of pages10
    JournalJournal of High Energy Physics
    Volume8
    Issue number8
    StatePublished - Aug 1 2004

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    tuning
    theorems

    Keywords

    • Cosmology of Theories beyond the SM
    • Extra Large Dimensions
    • Field Theories in Higher Dimensions
    • p-branes

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Football shaped extra dimensions and the absence of self-tuning. / Garriga, Jaume; Porrati, Massimo.

    In: Journal of High Energy Physics, Vol. 8, No. 8, 01.08.2004, p. 781-790.

    Research output: Contribution to journalArticle

    Garriga, J & Porrati, M 2004, 'Football shaped extra dimensions and the absence of self-tuning', Journal of High Energy Physics, vol. 8, no. 8, pp. 781-790.
    Garriga, Jaume ; Porrati, Massimo. / Football shaped extra dimensions and the absence of self-tuning. In: Journal of High Energy Physics. 2004 ; Vol. 8, No. 8. pp. 781-790.
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