Anomaly-induced gauge unification and brane/bulk couplings in gravity-localized theories

Keith R Dienes, Emilian Dudas, Tony Gherghetta

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

It has recently been proposed that gravity-localized compactifications can generate the required gauge hierarchy without the need for hierarchically large extra space-time dimensions. In this paper, we show that gauge coupling unification arises naturally in such scenarios as a result of the anomaly induced by the rescaling of the wavefunctions of the brane fields. Thus, "anomaly-induced" gauge coupling unification can easily explain the apparent low-energy gauge couplings in gravity-localized compactifications. However, we also point out a number of phenomenological difficulties with such compactifications, including an inability to accommodate the GUT scale and the electroweak scale simultaneously. We also show that brane/bulk couplings in this scenario are generically too small to be phenomenologically relevant. Finally, we speculate on possible resolutions to these puzzles.

Original languageEnglish (US)
Pages (from-to)111-132
Number of pages22
JournalNuclear Physics B
Volume567
Issue number1-2
StatePublished - Feb 14 2000

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anomalies
gravitation
grand unified theory
hierarchies
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Anomaly-induced gauge unification and brane/bulk couplings in gravity-localized theories. / Dienes, Keith R; Dudas, Emilian; Gherghetta, Tony.

In: Nuclear Physics B, Vol. 567, No. 1-2, 14.02.2000, p. 111-132.

Research output: Contribution to journalArticle

Dienes, Keith R ; Dudas, Emilian ; Gherghetta, Tony. / Anomaly-induced gauge unification and brane/bulk couplings in gravity-localized theories. In: Nuclear Physics B. 2000 ; Vol. 567, No. 1-2. pp. 111-132.
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